Detailed hourly weather forecast in Chalfont

+28 °CPartly cloudy southern

Wind: light air, southern

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 80%

Cloudiness: 15%

Sunrise 05:57, Sunset 20:17, more ...

Moonrise 11:58, Moonset 23:04, Moon phase: waxing crescent

Geomagnetic Field: Active

Thursday, July 31, 2025

night00:00 Partly cloudy

+27 °CPartly cloudy southern

Wind: light air, southern

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 83%

Cloudiness: 24%

+27 °CCloudy southern

Wind: light air, southern

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 85%

Cloudiness: 47%

+26 °CCloudy southern

Wind: light air, southern

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 89%

Cloudiness: 53%

+25 °CCloudy southern

Wind: light air, southern

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 91%

Cloudiness: 61%

+24 °CCloudy southern

Wind: light air, southern

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 91%

Cloudiness: 70%

+24 °CCloudy southeast

Wind: light air, southeast

speed: 4 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 90%

Cloudiness: 79%

morning06:00 Cloudy

+24 °CCloudy southeast

Wind: light air, southeast

speed: 4 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 90%

Cloudiness: 74%

+24 °CCloudy southeast

Wind: light air, southeast

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 92%

Cloudiness: 74%

+26 °CCloudy eastern

Wind: light air, eastern

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 88%

Cloudiness: 75%

+27 °CCloudy eastern

Wind: light air, eastern

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 83%

Cloudiness: 86%

+27 °CShowers eastern

Wind: light air, eastern

speed: 4 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 81%

Cloudiness: 79%

Amount of precipitations: 0,2 mm

+28 °CShowers eastern

Wind: light air, eastern

speed: 4 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 79%

Cloudiness: 80%

Amount of precipitations: 0,3 mm

afternoon12:00 Thunderstorm

+29 °CThunderstorm northeast

Wind: light breeze, northeast

speed: 7 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 76%

Cloudiness: 75%

Amount of precipitations: 0,4 mm

+29 °CThunderstorm eastern

Wind: light breeze, eastern

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 73%

Cloudiness: 95%

Amount of precipitations: 0,4 mm

+29 °CThunderstorm eastern

Wind: gentle breeze, eastern

speed: 14 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 76%

Cloudiness: 93%

Amount of precipitations: 0,9 mm

+28 °CThunderstorm eastern

Wind: light breeze, eastern

speed: 11 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 76%

Cloudiness: 100%

Amount of precipitations: 0,6 mm

+27 °CThunderstorm northeast

Wind: gentle breeze, northeast

speed: 14 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 86%

Cloudiness: 93%

Amount of precipitations: 3,4 mm

+26 °CRain eastern

Wind: gentle breeze, eastern

speed: 18 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 90%

Cloudiness: 94%

Amount of precipitations: 6 mm

evening18:00 Hail

+25 °CHail eastern

Wind: gentle breeze, eastern

speed: 18 km/h

Wind gusts: 36 km/h

Atmospheric pressure: 1003 hPa

Relative humidity: 93%

Cloudiness: 100%

Amount of precipitations: 3,4 mm

19:00

+23 °CShowers eastern

Wind: moderate breeze, eastern

speed: 25 km/h

Wind gusts: 50 km/h

Atmospheric pressure: 1003 hPa

Relative humidity: 94%

Cloudiness: 100%

Amount of precipitations: 0,6 mm

20:00

+22 °CRain eastern

Wind: moderate breeze, eastern

speed: 25 km/h

Wind gusts: 54 km/h

Atmospheric pressure: 1003 hPa

Relative humidity: 95%

Cloudiness: 100%

Amount of precipitations: 1,1 mm

21:00

+21 °CRain eastern

Wind: moderate breeze, eastern

speed: 22 km/h

Wind gusts: 54 km/h

Atmospheric pressure: 1003 hPa

Relative humidity: 95%

Cloudiness: 100%

Amount of precipitations: 6,7 mm

22:00

+21 °CThunderstorm northern

Wind: moderate breeze, northern

speed: 22 km/h

Wind gusts: 54 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 96%

Cloudiness: 95%

Amount of precipitations: 34,2 mm

+21 °CShowers northern

Wind: moderate breeze, northern

speed: 22 km/h

Wind gusts: 50 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 94%

Cloudiness: 100%

Amount of precipitations: 5,7 mm

Sunrise 05:58, Sunset 20:16, Ultraviolet index: 8 (Very high), more ...

Moonrise 13:00, Moonset 23:27, Moon phase: waxing crescent

Geomagnetic Field: Active

Friday, August 1, 2025

night00:00 Showers

+20 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 50 km/h

Atmospheric pressure: 1004 hPa

Relative humidity: 93%

Cloudiness: 100%

Amount of precipitations: 0,2 mm

+20 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 43 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 93%

Cloudiness: 99%

Amount of precipitations: 0,1 mm

+20 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 43 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 90%

Cloudiness: 100%

Amount of precipitations: 0,1 mm

+19 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 43 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 91%

Cloudiness: 100%

Amount of precipitations: 0,2 mm

+18 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 43 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 90%

Cloudiness: 100%

Amount of precipitations: 0,2 mm

+18 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 43 km/h

Atmospheric pressure: 1005 hPa

Relative humidity: 90%

Cloudiness: 100%

Amount of precipitations: 0,1 mm

morning06:00 Showers

+18 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 43 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 89%

Cloudiness: 100%

Amount of precipitations: 0,2 mm

+18 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 43 km/h

Atmospheric pressure: 1007 hPa

Relative humidity: 89%

Cloudiness: 100%

Amount of precipitations: 0,1 mm

+18 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 40 km/h

Atmospheric pressure: 1008 hPa

Relative humidity: 88%

Cloudiness: 100%

Amount of precipitations: 0,9 mm

+18 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 40 km/h

Atmospheric pressure: 1008 hPa

Relative humidity: 87%

Cloudiness: 100%

Amount of precipitations: 0,9 mm

+18 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 36 km/h

Atmospheric pressure: 1008 hPa

Relative humidity: 84%

Cloudiness: 100%

Amount of precipitations: 0,1 mm

+19 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 32 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 84%

Cloudiness: 99%

Amount of precipitations: 0,1 mm

afternoon12:00 Showers

+20 °CShowers northeast

Wind: gentle breeze, northeast

speed: 18 km/h

Wind gusts: 36 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 84%

Cloudiness: 99%

Amount of precipitations: 0,1 mm

+21 °CShowers northeast

Wind: gentle breeze, northeast

speed: 14 km/h

Wind gusts: 32 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 83%

Cloudiness: 100%

Amount of precipitations: 0,1 mm

+21 °CShowers northeast

Wind: gentle breeze, northeast

speed: 14 km/h

Wind gusts: 36 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 82%

Cloudiness: 99%

Amount of precipitations: 0,1 mm

+21 °CShowers northeast

Wind: gentle breeze, northeast

speed: 14 km/h

Wind gusts: 36 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 81%

Cloudiness: 100%

Amount of precipitations: 0,1 mm

+21 °COvercast northern

Wind: light breeze, northern

speed: 11 km/h

Wind gusts: 32 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 81%

Cloudiness: 97%

+22 °COvercast northeast

Wind: light breeze, northeast

speed: 11 km/h

Wind gusts: 29 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 81%

Cloudiness: 97%

evening18:00 Overcast

+22 °COvercast northeast

Wind: light breeze, northeast

speed: 11 km/h

Wind gusts: 29 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 80%

Cloudiness: 95%

19:00

+21 °CCloudy northeast

Wind: light breeze, northeast

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 80%

Cloudiness: 86%

20:00

+20 °CCloudy northeast

Wind: light breeze, northeast

speed: 7 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 79%

Cloudiness: 73%

21:00

+20 °CCloudy northeast

Wind: light breeze, northeast

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 80%

Cloudiness: 82%

22:00

+19 °CCloudy northeast

Wind: light breeze, northeast

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 78%

Cloudiness: 87%

+19 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 77%

Cloudiness: 68%

Sunrise 05:59, Sunset 20:15, Ultraviolet index: 3 (Moderate), more ...

Moonrise 14:02, Moonset 23:52, Moon phase: in its first quarter

Geomagnetic Field: Unstable

Saturday, August 2, 2025

night00:00 Cloudy

+18 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 81%

Cloudiness: 50%

+18 °CCloudy northern

Wind: light air, northern

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 85%

Cloudiness: 51%

+18 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 88%

Cloudiness: 51%

+17 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 89%

Cloudiness: 53%

+16 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 90%

Cloudiness: 60%

+16 °CPartly cloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 90%

Cloudiness: 18%

morning06:00 Clear

+16 °CClear northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 90%

Cloudiness: 1%

+16 °CClear northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 88%

Cloudiness: 0%

+18 °CClear northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 79%

Cloudiness: 0%

+20 °CClear northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1015 hPa

Relative humidity: 71%

Cloudiness: 0%

+22 °CClear northern

Wind: light breeze, northern

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1015 hPa

Relative humidity: 64%

Cloudiness: 24%

+23 °CClear northern

Wind: light breeze, northern

speed: 11 km/h

Wind gusts: 29 km/h

Atmospheric pressure: 1015 hPa

Relative humidity: 57%

Cloudiness: 29%

afternoon12:00 Clear

+25 °CClear northeast

Wind: light breeze, northeast

speed: 11 km/h

Wind gusts: 29 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 50%

Cloudiness: 50%

+26 °CCloudy northeast

Wind: light breeze, northeast

speed: 11 km/h

Wind gusts: 29 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 43%

Cloudiness: 93%

+26 °CCloudy northern

Wind: light breeze, northern

speed: 11 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 40%

Cloudiness: 96%

+26 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 25 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 38%

Cloudiness: 81%

+27 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 22 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 38%

Cloudiness: 70%

+27 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 38%

Cloudiness: 51%

evening18:00 Cloudy

+26 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 39%

Cloudiness: 70%

19:00

+25 °CCloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 47%

Cloudiness: 62%

20:00

+23 °CPartly cloudy northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 59%

Cloudiness: 15%

21:00

+22 °CClear northern

Wind: light air, northern

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 60%

Cloudiness: 55%

22:00

+22 °CClear northern

Wind: light air, northern

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 60%

Cloudiness: 53%

+21 °CClear northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 61%

Cloudiness: 42%

Sunrise 06:00, Sunset 20:14, Ultraviolet index: 8,8 (Very high), more ...

Moonrise 15:05, Moonset --:--, Moon phase: waxing gibbous

Geomagnetic Field: Quiet

Sunday, August 3, 2025

night00:00 Clear

+20 °CClear northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 18 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 62%

Cloudiness: 26%

+20 °CClear northern

Wind: light breeze, northern

speed: 7 km/h

Wind gusts: 14 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 62%

Cloudiness: 25%

+19 °CClear northern

Wind: light air, northern

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 63%

Cloudiness: 0%

+18 °CClear northern

Wind: light air, northern

speed: 4 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 65%

Cloudiness: 0%

+18 °CClear northern

Wind: light air, northern

speed: 4 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 66%

Cloudiness: 0%

+17 °CClear northern

Wind: light air, northern

speed: 4 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 68%

Cloudiness: 0%

morning06:00 Clear

+17 °CClear northwest

Wind: light air, northwest

speed: 4 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 72%

Cloudiness: 0%

+17 °CClear northwest

Wind: light air, northwest

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 76%

Cloudiness: 0%

+19 °CClear northwest

Wind: light air, northwest

speed: 4 km/h

Wind gusts: 7 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 80%

Cloudiness: 0%

+21 °CClear northwest

Wind: light breeze, northwest

speed: 7 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 72%

Cloudiness: 0%

+23 °CClear northwest

Wind: light air, northwest

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 63%

Cloudiness: 0%

+25 °CClear northwest

Wind: light air, northwest

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1013 hPa

Relative humidity: 55%

Cloudiness: 0%

afternoon12:00 Clear

+26 °CClear northwest

Wind: light air, northwest

speed: 4 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 50%

Cloudiness: 3%

+27 °CClear northwest

Wind: light breeze, northwest

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1012 hPa

Relative humidity: 44%

Cloudiness: 7%

+28 °CClear northwest

Wind: light breeze, northwest

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 39%

Cloudiness: 10%

+28 °CClear western

Wind: light breeze, western

speed: 7 km/h

Atmospheric pressure: 1011 hPa

Relative humidity: 39%

Cloudiness: 10%

+28 °CClear western

Wind: light breeze, western

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 39%

Cloudiness: 9%

+29 °CClear western

Wind: light breeze, western

speed: 7 km/h

Wind gusts: 11 km/h

Atmospheric pressure: 1009 hPa

Relative humidity: 39%

Cloudiness: 9%

Sunrise 06:01, Sunset 20:13, Ultraviolet index: 8,3 (Very high), more ...

Moonrise 16:08, Moonset 00:23, Moon phase: waxing gibbous