National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Thunderstorm in Vicinity

82°F

28°C

Humidity 83%
Wind Speed E 9 mph
Barometer 30.04 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 15 Jul 12:55 pm CDT
Extended Forecast for

Mason IL

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. South wind around 6 mph. Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 72. Light south wind. Chance of precipitation is 40%.

    Low: 72 °F

    Scattered
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 90. Light south southwest wind becoming southwest 5 to 9 mph in the morning.

    High: 90 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. South southwest wind 3 to 7 mph.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. West southwest wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Mostly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. Light east northeast wind.

    High: 84 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. South wind around 6 mph. Chance of precipitation is 50%.
Tonight
Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 72. Light south wind. Chance of precipitation is 40%.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 90. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 73. South southwest wind 3 to 7 mph.
Thursday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. West southwest wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 40%.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. Light east northeast wind.
Friday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 71.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 89.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mason IL
 38.94°N 88.62°W (Elev. 564 ft)
Last Update:
12:41 pm CDT Jul 15, 2025
Forecast Valid:
1pm CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
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