Weather for Downingtown, Pennsylvania
Current Weather
Five Day Weather Forecast
Mon
H: 25°F
L: 9°F
Tue
H: 22°F
L: 1°F
Wed
H: 18°F
L: 8°F
Thu
H: 23°F
L: 8°F
Fri
H: 14°F
L: 2°F
Air Quality
Nitrogen Dioxide: 8.25 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 64 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:15 PM
Daylight: 9 hrs 59 mins
Moon Transit: 6:30 PM
Moonset: 12:55 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%
Best Times for Fishing or Hunting
Major Periods
7:32 AM - 10:02 AM6:00 PM - 8:30 PM
Minor Periods
10:34 AM - 12:04 AM12:25 AM - 1:55 AM
Action Rating: 3 out of 5
Cold Weather Advisory issued January 26 at 1:33PM EST until January 28 at 10:00AM EST by NWS Mount Holly NJ
Effective: Mon January 26, 2026, 1:33 PM
Expires: Tue January 27, 2026, 3:00 AM
* WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...From 7 PM this evening to 10 AM EST Wednesday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Dangerously cold wind chills and or temperatures are expected Wednesday night through Thursday night.
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
Cold Weather Advisory issued January 26 at 1:33PM EST until January 28 at 10:00AM EST by NWS Mount Holly NJ
Effective: Mon January 26, 2026, 1:33 PM
Expires: Tue January 27, 2026, 3:00 AM
* WHAT...Very cold wind chills as low as 7 below expected. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...From 7 PM this evening to 10 AM EST Wednesday. * IMPACTS...The cold wind chills as low as 5 below zero could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Dangerously cold wind chills and or temperatures are expected Wednesday night through Thursday night.
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
Cold Weather Advisory issued January 26 at 2:59PM EST until January 27 at 11:00AM EST by NWS Baltimore MD/Washington DC
Effective: Mon January 26, 2026, 2:59 PM
Expires: Mon January 26, 2026, 11:00 PM
* WHAT...Very cold wind chills as low as 5 to 8 below zero expected. * WHERE...Portions of DC, central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 7 PM this evening to 11 AM EST Tuesday. * IMPACTS...The cold wind chills as low as 5 to 8 below zero could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Additional Cold Weather Headlines are expected at times through the end of the week as the region remains in an Arctic Airmass.
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water.
Cold Weather Advisory issued January 26 at 12:57PM EST until January 27 at 10:00AM EST by NWS State College PA
Effective: Mon January 26, 2026, 12:57 PM
Expires: Tue January 27, 2026, 10:00 AM
* WHAT...Very cold wind chills as low as 15 below expected. * WHERE...A portion of central Pennsylvania. * WHEN...From 7 PM this evening to 10 AM EST Tuesday. * IMPACTS...The dangerously cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken.
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Weather Forecast
Air Quality
Nitrogen Dioxide: 17.62 μg/m3
Sulphur Dioxide: 4.1 μg/m3
Ozone: 55.12 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:15 PM
Daylight: 9 hrs 59 mins
Moon Transit: 6:30 PM
Moonset: 12:55 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%
Best Times for Fishing or Hunting
Major Periods
7:32 AM - 10:02 AM6:00 PM - 8:30 PM
Minor Periods
10:34 AM - 12:04 AM12:25 AM - 1:55 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 11.27 μg/m3
Sulphur Dioxide: 4.87 μg/m3
Ozone: 66.88 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:16 PM
Daylight: 10 hrs 1 mins
Moon Transit: 7:29 PM
Moonset: 2:11 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%
Best Times for Fishing or Hunting
Major Periods
8:28 AM - 10:58 AM6:59 PM - 9:29 PM
Minor Periods
11:11 AM - 12:41 AM1:41 AM - 3:11 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.13 μg/m3
Sulphur Dioxide: 4.71 μg/m3
Ozone: 62.28 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:17 PM
Daylight: 10 hrs 3 mins
Moon Transit: 8:31 PM
Moonset: 3:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%
Best Times for Fishing or Hunting
Major Periods
9:30 AM - 12:00 AM8:01 PM - 10:31 PM
Minor Periods
11:59 AM - 1:29 PM2:57 AM - 4:27 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.8 μg/m3
Sulphur Dioxide: 4.93 μg/m3
Ozone: 58.48 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 5:18 PM
Daylight: 10 hrs 5 mins
Moon Transit: 9:36 PM
Moonset: 4:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%
Best Times for Fishing or Hunting
Major Periods
10:33 AM - 1:03 PM9:06 PM - 11:36 PM
Minor Periods
12:58 AM - 2:28 PM4:09 AM - 5:39 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 10.53 μg/m3
Sulphur Dioxide: 2.88 μg/m3
Ozone: 60.77 μg/m3
Astronomical
Sun Transit: 12:16 AM
Sunset: 5:19 PM
Daylight: 10 hrs 7 mins
Moon Transit: 10:40 PM
Moonset: 5:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%
Best Times for Fishing or Hunting
Major Periods
11:38 AM - 2:08 PM12:00 AM - 12:00 AM
Minor Periods
2:09 PM - 3:39 PM5:11 AM - 6:41 AM
Action Rating: 2 out of 5