Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Fair

96°F

36°C

Humidity 43%
Wind Speed N 5 mph
Barometer 30.15 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 18 Sep 12:15 pm CDT
Extended Forecast for

2 Miles ESE Central City IL

Heat Advisory September 18, 03:05pm until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 18, 03:05pm until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 96 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 100. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. Light south wind.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 94. Calm wind becoming northwest around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of thunderstorms before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am.  Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny, with a high near 96. Heat index values as high as 104. Calm wind.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 71. Calm wind.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 100. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 72. Light south wind.
Sunday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A slight chance of thunderstorms before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 73.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 77.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Central City IL
 38.54°N 89.1°W (Elev. 499 ft)
2:01 pm CDT Sep 18, 2026
3pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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