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

Excessive Rainfall Possible for the Gulf Coast and Florida; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across parts of the Gulf Coast into central/northern Florida early this week. Abnormally hot, potentially record-breaking, temperatures will continue for southern California and stretch north toward the Bay Area and Central Valley this week. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

57°F

14°C

Humidity 100%
Wind Speed E 3 mph
Barometer 30.10 in
Dewpoint 57°F (14°C)
Visibility 7.00 mi
Last update 4 Oct 7:55 pm EDT
Extended Forecast for

Lionville-Marchwood PA

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 54. Northeast wind around 5 mph becoming calm.

    Low: 54 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 68. Northwest wind 5 to 15 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44. Northwest wind around 5 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62. Northwest wind around 5 mph.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 41. Calm wind.

    Low: 41 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Wednesday Night

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

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Thursday Night

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

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 54. Northeast wind around 5 mph becoming calm.
Monday
Sunny, with a high near 68. Northwest wind 5 to 15 mph.
Monday Night
Clear, with a low around 44. Northwest wind around 5 mph.
Tuesday
Sunny, with a high near 62. Northwest wind around 5 mph.
Tuesday Night
Clear, with a low around 41. Calm wind.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lionville-Marchwood PA
 40.05°N 75.63°W (Elev. 479 ft)
Last Update:
4:31 pm EDT Oct 4, 2026
Forecast Valid:
8pm EDT Oct 4, 2026-6pm EDT Oct 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation