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

Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

Partly Cloudy

85°F

29°C

Humidity 63%
Wind Speed NA
Barometer 30.03 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 6 Sep 11:55 am CDT
Extended Forecast for

Salem IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 89. Northeast wind 7 to 9 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Northeast wind 5 to 9 mph.

    Low: 63 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 88. East wind around 6 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 94. Calm wind becoming south around 6 mph in the afternoon.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 89. Northeast wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 63. Northeast wind 5 to 9 mph.
Labor Day
Sunny, with a high near 88. East wind around 6 mph.
Monday Night
Partly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62.
Friday
A 20 percent chance of showers. Sunny, with a high near 86.
Friday Night
A 30 percent chance of showers. Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Salem IL
 38.65°N 88.95°W (Elev. 554 ft)
Last Update:
11:26 am CDT Sep 6, 2026
Forecast Valid:
12pm CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
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