Briefing for Flash Flood and Severe Storm Risks through Tonight
Potentially significant flash flooding is possible this afternoon into tonight. Some isolated severe thunderstorms are also possible. See this briefing for details on these hazards. Read More >
Hazardous Weather Conditions
Current conditions at
Chester County Airport (KMQS)
Lat: 39.98°NLon: 75.87°WElev: 659ft.
Overcast
73°F
23°C
| Humidity | 100% |
| Wind Speed | NE 5 mph |
| Barometer | 29.98 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Last update | 31 Jul 6:35 pm EDT |
Extended Forecast for
Coatesville PA
Flood Watch until August 1, 06:00am
NOW until 6:00am Fri
Flood Watch
Tonight
Low: 63 °F
Severe
Thunderstorms
then Chance
ShowersFriday
High: 76 °F
Slight Chance
Showers then
Mostly CloudyFriday Night
Low: 59 °F
Mostly Clear
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 57 °F
Mostly Clear
Sunday
High: 81 °F
Sunny
Sunday Night
Low: 60 °F
Mostly Clear
Monday
High: 85 °F
Sunny
Detailed Forecast
Tonight
Showers and thunderstorms likely before 4am, then a chance of showers. Some of the storms could be severe and produce heavy rainfall. Mostly cloudy, with a low around 63. East wind 5 to 10 mph becoming north in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A slight chance of showers before 9am. Mostly cloudy, with a high near 76. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 59. North wind around 5 mph.
Saturday
Sunny, with a high near 79. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 57. Calm wind.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
Partly sunny, with a high near 81.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Coatesville PA
39.99°N 75.82°W (Elev. 400 ft)
39.99°N 75.82°W (Elev. 400 ft)
4:12 pm EDT Jul 31, 2025
6pm EDT Jul 31, 2025-6pm EDT Aug 7, 2025
Additional Resources
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Hourly Weather Forecast
