Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Hazardous Weather Conditions

Current conditions at

Fairfield, Fairfield Municipal Airport (KFWC)

Lat: 38.38°NLon: 88.41°WElev: 436ft.

Mostly Cloudy

86°F

30°C

Humidity 64%
Wind Speed S 5 mph
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 13 Jul 1:35 pm CDT
Extended Forecast for

Sims IL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely.  Partly sunny, with a high near 86. South southwest wind around 7 mph.  Chance of precipitation is 70%.

    High: 86 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms before 1am.  Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms and
    Patchy Fog

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Chance
    T-storms and
    Patchy Fog

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 90. Calm wind becoming south around 6 mph in the afternoon.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 72. Light south southwest wind.

    Low: 72 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 91. South southwest wind 3 to 7 mph.

    High: 91 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 72. Southwest wind 3 to 6 mph.

    Low: 72 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms.  Partly sunny, with a high near 90. West southwest wind 3 to 8 mph.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Partly sunny, with a high near 86. South southwest wind around 7 mph. Chance of precipitation is 70%.
Tonight
A 40 percent chance of showers and thunderstorms before 1am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 70. Calm wind.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 86. Light and variable wind.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Light south southwest wind.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. South southwest wind 3 to 7 mph.
Wednesday Night
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72. Southwest wind 3 to 6 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. West southwest wind 3 to 8 mph.
Thursday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 70. West wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Light and variable wind becoming east northeast around 6 mph in the morning.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Light east wind.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Sims IL
 38.37°N 88.54°W
11:47 am CDT Jul 13, 2025
1pm CDT Jul 13, 2025-6pm CDT Jul 19, 2025
 
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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