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.

Overcast

40°F

4°C

Humidity 59%
Wind Speed NE 8 mph
Barometer 30.50 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 7 Apr 10:55 am CDT
Extended Forecast for

Altamont IL

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 49. East wind 8 to 10 mph, with gusts as high as 17 mph.

    High: 49 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 36. East wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. South wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. South wind around 11 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53. South wind 6 to 10 mph, with gusts as high as 17 mph.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers. Partly sunny, with a high near 70. South southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 17 mph.

    High: 70 °F

    Chance
    Showers

  • Friday Night

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

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 49. East wind 8 to 10 mph, with gusts as high as 17 mph.
Tonight
Partly cloudy, with a low around 36. East wind 6 to 8 mph, with gusts as high as 16 mph.
Wednesday
Mostly sunny, with a high near 69. South wind 9 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 51. South wind around 11 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 75. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 53. South wind 6 to 10 mph, with gusts as high as 17 mph.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 70. South southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 17 mph.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 79.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 63.
Monday
A chance of showers. Partly sunny, with a high near 79. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.76°W (Elev. 636 ft)
Last Update:
4:57 am CDT Apr 7, 2026
Forecast Valid:
11am CDT Apr 7, 2026-6pm CDT Apr 13, 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