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.

A Few Clouds

38°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 38°F (3°C)
Visibility 7.00 mi
Last update 17 Feb 2:35 pm EST
Extended Forecast for

Elverson PA

Dense Fog Advisory February 17, 10:00pm until February 18, 10:00am
Click here for hazard details and duration
Dense Fog Advisory

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 46. West wind around 5 mph becoming calm.

    High: 46 °F

    Partly Sunny

  • Tonight

    Tonight: Widespread dense fog, mainly after 10pm. Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Dense Fog

  • Wednesday

    Wednesday: A chance of rain before 10am, then a chance of rain after 2pm. Widespread dense fog, mainly before 11am. Otherwise, cloudy, with a high near 47. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance Rain
    and Dense Fog

  • Wednesday Night

    Wednesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 37. West wind around 5 mph becoming northwest after midnight.

    Low: 37 °F

    Patchy Fog

  • Thursday

    Thursday: A chance of rain after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 42. East wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Patchy Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a low around 35. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 45. Chance of precipitation is 90%.

    High: 45 °F

    Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 46. West wind around 5 mph becoming calm.
Tonight
Widespread dense fog, mainly after 10pm. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Wednesday
A chance of rain before 10am, then a chance of rain after 2pm. Widespread dense fog, mainly before 11am. Otherwise, cloudy, with a high near 47. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 37. West wind around 5 mph becoming northwest after midnight.
Thursday
A chance of rain after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 42. East wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a low around 35. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 45. Chance of precipitation is 90%.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Mostly cloudy, with a high near 47.
Saturday Night
A chance of rain and snow after 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Sunday
A chance of snow. Mostly cloudy, with a high near 37. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Elverson PA
 40.17°N 75.84°W (Elev. 686 ft)
Last Update:
1:22 pm EST Feb 17, 2026
Forecast Valid:
2pm EST Feb 17, 2026-6pm EST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation