Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

69°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 4 Aug 10:55 pm CDT
Extended Forecast for

Mason IL

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind becoming south around 6 mph in the morning.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 68. Light and variable wind becoming south southeast around 5 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 4pm.  Partly sunny, with a high near 82. Calm wind becoming south southwest around 6 mph in the morning.  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

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 83. Calm wind becoming west southwest around 6 mph in the afternoon.  Chance of precipitation is 40%.

    High: 83 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 63. Calm wind.
Wednesday
Sunny, with a high near 86. Calm wind becoming south around 6 mph in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 68. Light and variable wind becoming south southeast around 5 mph.
Thursday
Showers likely, with thunderstorms also possible after 4pm. Partly sunny, with a high near 82. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 40%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
A chance of showers. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Mason IL
 38.94°N 88.62°W (Elev. 564 ft)
10:36 pm CDT Aug 4, 2026
11pm CDT Aug 4, 2026-6pm CDT Aug 11, 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