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

Storm System to Move Across the Ohio Valley to the Mid-Atlantic and Northeast

Isolated severe thunderstorms will be possible on Veterans Day across parts of the lower Ohio and western Tennessee Valleys. A developing storm will bring rain and gusty winds to the Mid-Atlantic and Northeast on Thursday, with the first accumulating snow likely in the higher elevations of the central Appalachians and interior Northeast. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

47°F

8°C

Humidity 91%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 10 Nov 10:15 pm CST
Extended Forecast for

Alton IL

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Calm wind becoming southwest around 5 mph after midnight.

    Low: 46 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: Increasing clouds, with a high near 66. Southwest wind 5 to 10 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 66 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40. Northwest wind 7 to 15 mph, with gusts as high as 29 mph.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 49. Northwest wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 49 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. Northwest wind 5 to 11 mph.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 46. Calm wind becoming southwest around 5 mph after midnight.
Veterans Day
Increasing clouds, with a high near 66. Southwest wind 5 to 10 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 40. Northwest wind 7 to 15 mph, with gusts as high as 29 mph.
Thursday
Mostly sunny, with a high near 49. Northwest wind 11 to 15 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 31. Northwest wind 5 to 11 mph.
Friday
Sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alton IL
 38.91°N 90.16°W (Elev. 505 ft)
Last Update:
8:51 pm CST Nov 10, 2026
Forecast Valid:
10pm CST Nov 10, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

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