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

61°F

16°C

Humidity 30%
Wind Speed E 5 mph
Barometer 30.31 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 20 Apr 2:55 pm CDT
Extended Forecast for

5 Miles SSE Altamont IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 63. Light south wind.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. South southeast wind 3 to 7 mph. Winds could gust as high as 15 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Southwest wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76. Southwest wind 7 to 9 mph, with gusts as high as 16 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. South wind around 6 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. South wind 6 to 16 mph, with gusts as high as 23 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 63. Light south wind.
Tonight
Mostly clear, with a low around 45. South southeast wind 3 to 7 mph. Winds could gust as high as 15 mph.
Tuesday
Mostly sunny, with a high near 76. Southwest wind 7 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 55. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 76. Southwest wind 7 to 9 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 55. South wind around 6 mph.
Thursday
Sunny, with a high near 79. South wind 6 to 16 mph, with gusts as high as 23 mph.
Thursday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Friday
Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly sunny, with a high near 72.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51.
Sunday
Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Altamont IL
 38.99°N 88.7°W (Elev. 574 ft)
Last Update:
2:56 pm CDT Apr 20, 2026
Forecast Valid:
3pm CDT Apr 20, 2026-6pm CDT Apr 26, 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