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

58°F

14°C

Humidity 94%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Oct 6:35 am CDT
Extended Forecast for

4 Miles NW Altamont IL

  • Columbus Day

    Columbus Day: Sunny, with a high near 90. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 68. South wind 6 to 8 mph.

    Low: 68 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Southwest wind 7 to 10 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 70. Southwest wind around 6 mph.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 82. West wind 3 to 6 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 62. Breezy.

    High: 62 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Columbus Day
Sunny, with a high near 90. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Tonight
Clear, with a low around 68. South wind 6 to 8 mph.
Tuesday
Sunny, with a high near 93. Southwest wind 7 to 10 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 70. Southwest wind around 6 mph.
Wednesday
Showers and possibly a thunderstorm. High near 82. West wind 3 to 6 mph. Chance of precipitation is 90%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 62. Breezy.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 61.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Altamont IL
 39.11°N 88.81°W (Elev. 600 ft)
Last Update:
6:21 am CDT Oct 12, 2026
Forecast Valid:
6am CDT Oct 12, 2026-6pm CDT Oct 18, 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