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

Mount Sterling, Mount Sterling Municipal Airport (KI63)

Lat: 39.99°NLon: 90.8°WElev: 732ft.

Fair

78°F

26°C

Humidity 88%
Wind Speed S 8 mph
Barometer 29.85 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 29 Jun 1:15 am CDT
Extended Forecast for

Meredosia IL

Heat Advisory June 29, 11:00am until July 3, 12:00am
Flood Warning June 29, 01:23am until July 6, 07:00pm
Click here for hazard details and duration
Heat Advisory
Flood Warning
  •  
    Flood Warning June 29, 01:23am until July 6, 07:00pm

    NOW until 7:00pm Mon

    Flood Warning

  • Overnight

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 93. Heat index values as high as 106. South wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 93 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Heat index values as high as 106. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. South wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. South southwest wind 5 to 8 mph, with gusts as high as 16 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 76. South wind 5 to 8 mph, with gusts as high as 15 mph.

    Low: 76 °F

    Clear

  • Thursday

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

    High: 95 °F

    Hot

Detailed Forecast

Overnight
Partly cloudy, with a low around 75. South wind around 8 mph, with gusts as high as 17 mph.
Monday
Partly sunny, with a high near 93. Heat index values as high as 106. South wind 8 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 75. South wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 94. Heat index values as high as 106. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Clear, with a low around 74. South wind 5 to 9 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 94. South southwest wind 5 to 8 mph, with gusts as high as 16 mph.
Wednesday Night
Clear, with a low around 76. South wind 5 to 8 mph, with gusts as high as 15 mph.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Mostly clear, with a low around 75.
Friday
Sunny and hot, with a high near 95.
Friday Night
Partly cloudy, with a low around 74.
Independence Day
Mostly sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 73.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Meredosia IL
 39.82°N 90.55°W (Elev. 440 ft)
12:06 am CDT Jun 29, 2026
1am CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
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Additional Resources

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Hourly Weather Forecast

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