Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Overcast

73°F

23°C

Humidity 77%
Wind Speed W 5 mph
Barometer 30.04 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 20 Jun 8:35 am CDT
Extended Forecast for

5 Miles S Altamont IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch
  • Today

    Today: Mostly sunny, with a high near 82. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Light and variable wind.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms, mainly after noon. Some of the storms could produce heavy rainfall.  High near 80. East southeast wind 6 to 15 mph becoming south in the afternoon. Winds could gust as high as 22 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 80 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers.  Low around 64. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 64 °F

    Showers

  • Monday

    Monday: Partly sunny, with a high near 76. North wind around 11 mph, with gusts as high as 16 mph.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. North wind 3 to 8 mph.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. North northeast wind 3 to 5 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 82. Calm wind becoming west northwest around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 63. Light and variable wind.
Sunday
Showers and thunderstorms, mainly after noon. Some of the storms could produce heavy rainfall. High near 80. East southeast wind 6 to 15 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 64. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday
Partly sunny, with a high near 76. North wind around 11 mph, with gusts as high as 16 mph.
Monday Night
Partly cloudy, with a low around 58. North wind 3 to 8 mph.
Tuesday
Sunny, with a high near 79. North northeast wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 60.
Friday
A chance of showers. Mostly sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Altamont IL
 38.97°N 88.73°W (Elev. 571 ft)
8:36 am CDT Jun 20, 2026
8am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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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