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

41°F

5°C

Humidity 80%
Wind Speed SW 3 mph
Barometer 30.30 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 6 Apr 12:35 am CDT
Extended Forecast for

4 Miles NW Altamont IL

  • Overnight

    Overnight: Clear, with a low around 37. Calm wind becoming southwest around 6 mph.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 58. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 35. Northwest wind 6 to 10 mph becoming north after midnight.

    Low: 35 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 49. East wind 7 to 10 mph.

    High: 49 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. East wind 6 to 8 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 69. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 37. Calm wind becoming southwest around 6 mph.
Monday
Sunny, with a high near 58. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Monday Night
Increasing clouds, with a low around 35. Northwest wind 6 to 10 mph becoming north after midnight.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 49. East wind 7 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 37. East wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 69. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 59.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
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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:
12:21 am CDT Apr 6, 2026
Forecast Valid:
12am CDT Apr 6, 2026-6pm CDT Apr 12, 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