Weather for Downingtown, Pennsylvania
Current Weather
Humidity: 39%
Heat Index: 46.4°F
Feels Like: 38°F
Wind: W 14.3 mph
Wind Gusts: 37 mph
Wind Chill: 38°F
Dew Point: 38°F
Chance of Precipitation: 0%
Precipitation: 0.02 in
Cloud Cover: 100%
Visibility: 10 mi
UV Index: 0
Five Day Weather Forecast
Mon
H: 53°F
L: 27°F
Tue
H: 32°F
L: 24°F
Wed
H: 37°F
L: 24°F
Thu
H: 28°F
L: 23°F
Fri
H: 30°F
L: 23°F
Air Quality
Nitrogen Dioxide: 7.25 μg/m3
Sulphur Dioxide: 5.05 μg/m3
Ozone: 58 μg/m3
Astronomical
Sun Transit: 12:04 AM
Sunset: 4:46 PM
Daylight: 9 hrs 22 mins
Moon Transit: 7:43 PM
Moonset: 1:52 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%
Best Times for Fishing or Hunting
Major Periods
8:45 AM - 11:15 AM7:13 PM - 9:43 PM
Minor Periods
12:02 AM - 1:32 PM1:22 AM - 2:52 AM
Action Rating: 2 out of 5
Dense Fog Advisory issued December 28 at 9:32PM EST until December 29 at 10:00AM EST by NWS Mount Holly NJ
Effective: Sun December 28, 2025, 9:32 PM
Expires: Mon December 29, 2025, 10:45 AM
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Portions of central, northern, and northwest New Jersey and east central, northeast, and southeast Pennsylvania. * WHEN...For the Dense Fog Advisory, until 10 AM EST Monday. For the Wind Advisory, from 10 AM Monday to 1 PM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Low visibility could make driving conditions hazardous. Temperatures near or below freezing overnight may result in patchy ice on untreated surfaces from fog alone.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Icy patches are possible on untreated roads.
Wind Advisory issued December 28 at 9:32PM EST until December 30 at 1:00PM EST by NWS Mount Holly NJ
Effective: Sun December 28, 2025, 9:32 PM
Expires: Mon December 29, 2025, 10:45 AM
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Portions of central, northern, and northwest New Jersey and east central, northeast, and southeast Pennsylvania. * WHEN...For the Dense Fog Advisory, until 10 AM EST Monday. For the Wind Advisory, from 10 AM Monday to 1 PM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Low visibility could make driving conditions hazardous. Temperatures near or below freezing overnight may result in patchy ice on untreated surfaces from fog alone.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. If driving, slow down, use your headlights, and leave plenty of distance ahead of you. Icy patches are possible on untreated roads.
Dense Fog Advisory issued December 29 at 2:23AM EST until December 29 at 10:00AM EST by NWS Mount Holly NJ
Effective: Mon December 29, 2025, 2:23 AM
Expires: Mon December 29, 2025, 3:30 PM
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Portions of central, northern, and northwest New Jersey and east central, northeast, and southeast Pennsylvania. * WHEN...For the Dense Fog Advisory, until 10 AM EST this morning. For the Wind Advisory, from 10 AM this morning to 1 PM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Low visibility could make driving conditions hazardous.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Wind Advisory issued December 29 at 2:23AM EST until December 30 at 1:00PM EST by NWS Mount Holly NJ
Effective: Mon December 29, 2025, 2:23 AM
Expires: Mon December 29, 2025, 3:30 PM
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Portions of central, northern, and northwest New Jersey and east central, northeast, and southeast Pennsylvania. * WHEN...For the Dense Fog Advisory, until 10 AM EST this morning. For the Wind Advisory, from 10 AM this morning to 1 PM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Low visibility could make driving conditions hazardous.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Wind Advisory issued December 29 at 1:21PM EST until December 30 at 1:00PM EST by NWS Mount Holly NJ
Effective: Mon December 29, 2025, 1:21 PM
Expires: Tue December 30, 2025, 4:00 AM
* WHAT...West winds 15 to 25 mph with gusts up to 50 mph. * WHERE...Portions of northern Delaware, central, northern, northwest, and southern New Jersey, and east central and southeast Pennsylvania. * WHEN...Until 1 PM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Wind Advisory issued December 28 at 9:32PM EST until December 30 at 1:00PM EST by NWS Mount Holly NJ
Effective: Sun December 28, 2025, 9:32 PM
Expires: Mon December 29, 2025, 10:45 AM
* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...From 10 AM Monday to 1 PM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Wind Advisory issued December 29 at 2:23AM EST until December 30 at 1:00PM EST by NWS Mount Holly NJ
Effective: Mon December 29, 2025, 2:23 AM
Expires: Mon December 29, 2025, 3:30 PM
* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...From 10 AM this morning to 1 PM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Wind Advisory issued December 29 at 3:07AM EST until December 30 at 1:00AM EST by NWS Baltimore MD/Washington DC
Effective: Mon December 29, 2025, 3:07 AM
Expires: Mon December 29, 2025, 11:15 AM
* WHAT...West winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 9 AM this morning to 1 AM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Wind Advisory issued December 29 at 10:58AM EST until December 30 at 1:00AM EST by NWS Baltimore MD/Washington DC
Effective: Mon December 29, 2025, 10:58 AM
Expires: Mon December 29, 2025, 7:00 PM
* WHAT...West winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Wind Advisory issued December 28 at 9:56PM EST until December 30 at 12:00PM EST by NWS State College PA
Effective: Sun December 28, 2025, 9:56 PM
Expires: Mon December 29, 2025, 10:00 AM
* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Dauphin, Lancaster, Lebanon, and York Counties. * WHEN...From 9 AM Monday to noon EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects.
Wind Advisory issued December 29 at 4:04AM EST until December 30 at 12:00PM EST by NWS State College PA
Effective: Mon December 29, 2025, 4:04 AM
Expires: Mon December 29, 2025, 6:00 PM
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Dauphin, Lancaster, Lebanon, and York Counties. * WHEN...For the Dense Fog Advisory, until 8 AM EST this morning. For the Wind Advisory, from 9 AM this morning to noon EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Hazardous driving conditions due to reduced visibility.
Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects and holiday decorations.
Dense Fog Advisory issued December 29 at 4:04AM EST until December 29 at 8:00AM EST by NWS State College PA
Effective: Mon December 29, 2025, 4:04 AM
Expires: Mon December 29, 2025, 6:00 PM
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Dauphin, Lancaster, Lebanon, and York Counties. * WHEN...For the Dense Fog Advisory, until 8 AM EST this morning. For the Wind Advisory, from 9 AM this morning to noon EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Hazardous driving conditions due to reduced visibility.
Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects and holiday decorations.
Wind Advisory issued December 29 at 8:55AM EST until December 30 at 12:00PM EST by NWS State College PA
Effective: Mon December 29, 2025, 8:55 AM
Expires: Tue December 30, 2025, 7:30 AM
* WHAT...West winds 15 to 25 mph with gusts up to 55 mph expected. * WHERE...Columbia, Dauphin, Lancaster, Lebanon, Montour, Northumberland, Schuylkill, Sullivan, and York Counties. * WHEN...Until noon EST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects and holiday decorations.
Weather Forecast
Average Temperature: 41.2°F
Average Humidity: 81%
Wind: 22.1 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 10.73 μg/m3
Sulphur Dioxide: 5.65 μg/m3
Ozone: 50.32 μg/m3
Astronomical
Sun Transit: 12:04 AM
Sunset: 4:46 PM
Daylight: 9 hrs 22 mins
Moon Transit: 7:43 PM
Moonset: 1:52 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%
Best Times for Fishing or Hunting
Major Periods
8:45 AM - 11:15 AM7:13 PM - 9:43 PM
Minor Periods
12:02 AM - 1:32 PM1:22 AM - 2:52 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 27°F
Average Humidity: 57%
Wind: 21 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 5.62 μg/m3
Sulphur Dioxide: 4.16 μg/m3
Ozone: 69.64 μg/m3
Astronomical
Sun Transit: 12:05 AM
Sunset: 4:47 PM
Daylight: 9 hrs 23 mins
Moon Transit: 8:40 PM
Moonset: 3:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.8%
Best Times for Fishing or Hunting
Major Periods
9:40 AM - 12:10 AM8:10 PM - 10:40 PM
Minor Periods
12:35 AM - 2:05 PM2:39 AM - 4:09 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 30.4°F
Average Humidity: 49%
Wind: 15 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 10.11 μg/m3
Sulphur Dioxide: 9.65 μg/m3
Ozone: 60.52 μg/m3
Astronomical
Sun Transit: 12:05 AM
Sunset: 4:48 PM
Daylight: 9 hrs 24 mins
Moon Transit: 9:42 PM
Moonset: 4:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%
Best Times for Fishing or Hunting
Major Periods
10:40 AM - 1:10 PM9:12 PM - 11:42 PM
Minor Periods
1:18 PM - 2:48 PM3:58 AM - 5:28 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 26.4°F
Average Humidity: 51%
Wind: 14.1 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 9.22 μg/m3
Sulphur Dioxide: 6.39 μg/m3
Ozone: 64.8 μg/m3
Astronomical
Sun Transit: 12:06 AM
Sunset: 4:49 PM
Daylight: 9 hrs 24 mins
Moon Transit: 10:48 PM
Moonset: 5:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%
Best Times for Fishing or Hunting
Major Periods
11:45 AM - 2:15 PM12:00 AM - 12:00 AM
Minor Periods
2:13 PM - 3:43 PM5:16 AM - 6:46 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 25.6°F
Average Humidity: 60%
Wind: 13.2 mph
UV Index: 1
Air Quality
Nitrogen Dioxide: 16.45 μg/m3
Sulphur Dioxide: 10.17 μg/m3
Ozone: 52.62 μg/m3
Astronomical
Sun Transit: 12:06 AM
Sunset: 4:49 PM
Daylight: 9 hrs 25 mins
Moon Transit: 11:55 PM
Moonset: 6:57 AM
Moon Phase: Full
Moon Illumination: 99.2%
Best Times for Fishing or Hunting
Major Periods
12:52 AM - 3:22 PM12:00 AM - 12:00 AM
Minor Periods
3:19 PM - 4:49 PM6:27 AM - 7:57 AM
Action Rating: 4 out of 5