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.

Mostly Cloudy

71°F

22°C

Humidity 33%
Wind Speed NW 17 G 23 mph
Barometer 30.01 in
Dewpoint 40°F (4°C)
Visibility 7.00 mi
Last update 13 May 4:15 pm CDT
Extended Forecast for

4 Miles ENE Altamont IL

  • Tonight

    Tonight: Clear, with a low around 43. North northwest wind 6 to 11 mph becoming light north in the evening. Winds could gust as high as 20 mph.

    Low: 43 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Calm wind.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 50. Calm wind becoming south southeast 5 to 8 mph after midnight. Winds could gust as high as 15 mph.

    Low: 50 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 75. South wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South wind 7 to 9 mph, with gusts as high as 16 mph.

    Low: 63 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 82. Southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63. South southeast wind around 6 mph.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 43. North northwest wind 6 to 11 mph becoming light north in the evening. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 70. Calm wind.
Thursday Night
A 30 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 50. Calm wind becoming south southeast 5 to 8 mph after midnight. Winds could gust as high as 15 mph.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 75. South wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South wind 7 to 9 mph, with gusts as high as 16 mph.
Saturday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 82. Southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63. South southeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 67.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Breezy.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 63.
Wednesday
A chance of showers. Mostly cloudy, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Altamont IL
 39.08°N 88.67°W (Elev. 577 ft)
Last Update:
1:51 pm CDT May 13, 2026
Forecast Valid:
4pm CDT May 13, 2026-6pm CDT May 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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