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

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

47°F

8°C

Humidity 79%
Wind Speed SE 3 mph
Barometer 30.04 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 17 Feb 12:15 am CST
Extended Forecast for

4 Miles WNW Altamont IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 40. South wind around 6 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, with a high near 60. South wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 60 °F

    Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 54. Breezy, with a south wind 15 to 20 mph, with gusts as high as 31 mph.

    Low: 54 °F

    Breezy.
    Cloudy then
    Slight Chance
    Rain

  • Wednesday

    Wednesday: Sunny, with a high near 68. Southwest wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly after midnight. Partly cloudy, with a low around 47. South wind around 6 mph.

    Low: 47 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly after noon. Partly sunny, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Chance Rain
    then Rain
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of rain before midnight. Mostly clear, with a low around 36.

    Low: 36 °F

    Chance Rain
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 40. South wind around 6 mph.
Tuesday
Cloudy, with a high near 60. South wind 6 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
A 20 percent chance of rain after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 54. Breezy, with a south wind 15 to 20 mph, with gusts as high as 31 mph.
Wednesday
Sunny, with a high near 68. Southwest wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
A 30 percent chance of rain, mainly after midnight. Partly cloudy, with a low around 47. South wind around 6 mph.
Thursday
Rain likely, mainly after noon. Partly sunny, with a high near 67. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of rain before midnight. Mostly clear, with a low around 36.
Friday
Sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 28.
Saturday
A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 43.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 18.
Monday
Sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Altamont IL
 39.08°N 88.81°W (Elev. 633 ft)
Last Update:
11:41 pm CST Feb 16, 2026
Forecast Valid:
12am CST Feb 17, 2026-6pm CST Feb 23, 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