Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Partly Cloudy

78°F

26°C

Humidity 90%
Wind Speed S 10 mph
Barometer 29.85 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 29 Jun 3:15 am CDT
Extended Forecast for

5 Miles SE Thomson IL

Extreme Heat Warning June 29, 12:00pm until July 1, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Overnight

    Overnight: Partly cloudy, with a low around 76. South wind around 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 93. Heat index values as high as 106. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am.  Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. South wind around 10 mph.
Monday
Sunny, with a high near 93. Heat index values as high as 106. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny and hot, with a high near 95.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Mostly sunny and hot, with a high near 95.
Thursday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 75.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Independence Day
Mostly sunny, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Thomson IL
 41.92°N 90.05°W (Elev. 699 ft)
2:57 am CDT Jun 29, 2026
3am CDT Jun 29, 2026-6pm CDT Jul 5, 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