
Multiple rounds of storms through Friday
A briefing on the multiple rounds of storms through Friday, September 4. Read More >
Hazardous Weather Conditions
Current conditions at
Chester County Airport (KMQS)
Lat: 39.98°NLon: 75.87°WElev: 659ft.
Partly Cloudy
77°F
25°C
| Humidity | 95% |
| Wind Speed | W 5 mph |
| Barometer | 29.90 in |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 4 Sep 12:35 am EDT |
Extended Forecast for
Coatesville PA
Severe T-storm Watch until September 4, 02:00am
NOW until 2:00am Fri

Severe T-storm Watch
Overnight

Low: 70 °F
Severe
ThunderstormsFriday
High: 84 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 63 °F
Chance
T-storms then
Chance
ShowersSaturday

High: 79 °F
Mostly Sunny
Saturday Night

Low: 59 °F
Mostly Clear
Sunday

High: 76 °F
Sunny
Sunday Night

Low: 55 °F
Mostly Clear
Labor Day

High: 77 °F
Sunny
Detailed Forecast
Overnight
Showers and thunderstorms likely before 2am, then a chance of showers. Some of the storms could be severe. Mostly cloudy, with a low around 70. Calm wind becoming west around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Northwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 1am. Mostly cloudy, with a low around 63. North wind around 5 mph becoming calm. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 79. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 59. North wind around 5 mph.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 55.
Labor Day
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 84.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Coatesville PA
39.99°N 75.82°W (Elev. 400 ft)
39.99°N 75.82°W (Elev. 400 ft)
8:43 pm EDT Sep 3, 2026
12am EDT Sep 4, 2026-6pm EDT Sep 10, 2026



