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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

39°F

4°C

Humidity 56%
Wind Speed SW 7 mph
Barometer 30.19 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Jan 10:55 am CST
Extended Forecast for

Elvaston IL

  • Today

    Today: Mostly sunny, with a high near 48. Southwest wind 5 to 10 mph.

    High: 48 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Scattered sprinkles after 5pm. Increasing clouds, with a high near 53. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 53 °F

    Scattered
    Sprinkles

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 37. Breezy.

    High: 37 °F

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday

    Friday: A 40 percent chance of snow after noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 48. Southwest wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 36. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Scattered sprinkles after 5pm. Increasing clouds, with a high near 53. West wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 31. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly cloudy, with a high near 37. Breezy.
Wednesday Night
Mostly clear, with a low around 15.
Thursday
Mostly sunny, with a high near 30.
Thursday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 26.
Friday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 38.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Mostly cloudy, with a high near 22.
Saturday Night
Partly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Elvaston IL
 40.39°N 91.25°W (Elev. 646 ft)
Last Update:
10:41 am CST Jan 12, 2026
Forecast Valid:
11am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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