National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Unknown Precip

29°F

-2°C

Humidity 90%
Wind Speed E 5 mph
Barometer 30.51 in
Dewpoint 27°F (-3°C)
Visibility 8.00 mi
Wind Chill24°F (-4°C)
Last update 3 Mar 5:15 am EST
Extended Forecast for

Coatesville PA

Winter Weather Advisory until March 3, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until March 3, 11:00am

    NOW until 11:00am Tue

    Winter Weather Advisory

  • Overnight

    Low: 28 °F

    Chance Snow

  • Tuesday

    Tuesday: Rain, snow and freezing rain, possibly mixed with sleet, becoming all rain after 1pm. Patchy fog. High near 41. East wind around 5 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow and sleet accumulation of less than a half inch possible.

    High: 41 °F

    Wintry Mix
    and Patchy
    Fog then Rain
    and Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Rain, mainly before 3am. Patchy fog. Low around 38. South wind around 5 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain and
    Patchy Fog
    then Rain
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of rain after 1pm. Mostly cloudy, with a high near 54. Calm wind becoming north around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 1am. Cloudy, with a low around 43. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain Likely

  • Thursday

    Thursday: Showers likely, mainly before 1pm. Cloudy, with a high near 55. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow. Cloudy, with a low around 28. East wind around 5 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Rain, snow and freezing rain, possibly mixed with sleet, becoming all rain after 1pm. Patchy fog. High near 41. East wind around 5 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow and sleet accumulation of less than a half inch possible.
Tuesday Night
Rain, mainly before 3am. Patchy fog. Low around 38. South wind around 5 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 54. Calm wind becoming north around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, mainly after 1am. Cloudy, with a low around 43. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before 1pm. Cloudy, with a high near 55. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Showers. Low around 46. Chance of precipitation is 80%.
Friday
Mostly cloudy, with a high near 58.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Mostly cloudy, with a high near 64.
Saturday Night
Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Sunday
Mostly cloudy, with a high near 67.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Monday
Mostly cloudy, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Coatesville PA
 39.99°N 75.82°W (Elev. 400 ft)
Last Update:
4:10 am EST Mar 3, 2026
Forecast Valid:
5am EST Mar 3, 2026-6pm EDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation