Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Mostly Cloudy

65°F

18°C

Humidity 88%
Wind Speed NE 3 mph
Barometer 30.14 in
Dewpoint 61°F (16°C)
Visibility 9.00 mi
Last update 26 May 7:15 am EDT
Extended Forecast for

Coatesville PA

Dense Fog Advisory May 26, 07:22am until May 26, 08:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory May 26, 07:22am until May 26, 08:00am

    NOW until 8:00am Tue

    Dense Fog Advisory

  • Today

    High: 79 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers after 2am.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers likely, mainly before 1pm.  Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 79 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 59. West wind around 5 mph.

    Low: 59 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 75. Northwest wind 5 to 15 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Today
Mostly cloudy, with a high near 79. Northeast wind around 5 mph becoming south in the afternoon.
Tonight
A chance of showers after 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly before 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 79. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 59. West wind around 5 mph.
Thursday
Sunny, with a high near 75. Northwest wind 5 to 15 mph.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Coatesville PA
 40.01°N 75.81°W (Elev. 489 ft)
4:08 am EDT May 26, 2026
7am EDT May 26, 2026-6pm EDT Jun 1, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database