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

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

78°F

26°C

Humidity 40%
Wind Speed Vrbl 7 mph
Barometer 29.99 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 16 May 4:15 pm EDT
Extended Forecast for

Mendenhall PA

  • Tonight

    Tonight: A chance of sprinkles with a slight chance of showers before midnight, then a chance of sprinkles between midnight and 2am. Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 85. West wind around 5 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 89. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 60%.

    High: 93 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of sprinkles with a slight chance of showers before midnight, then a chance of sprinkles between midnight and 2am. Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 85. West wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 61. Calm wind.
Monday
Sunny, with a high near 89. Light south wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 65. South wind around 5 mph.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendenhall PA
 39.86°N 75.72°W (Elev. 397 ft)
Last Update:
4:08 pm EDT May 16, 2026
Forecast Valid:
4pm EDT May 16, 2026-6pm EDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation