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

Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Pleasant, Mount Pleasant Municipal Airport (KMPZ)

Lat: 40.95°NLon: 91.51°WElev: 735ft.

Fair

79°F

26°C

Humidity 79%
Wind Speed S 13 G 18 mph
Barometer 29.91 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 22 Jun 2:15 am CDT
Extended Forecast for

4 Miles NNE Mount Union IA

Heat Advisory June 22, 02:36am until June 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 22, 02:36am until June 23, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Overnight

    Low: 77 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. Heat index values as high as 101. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 94 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 74. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 74 °F

    Clear and
    Breezy then
    Clear

  • Monday

    Monday: Sunny, with a high near 93. Heat index values as high as 101. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 94. Heat index values as high as 101. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 74. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 93. Heat index values as high as 101. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 69.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Mount Union IA
 41.09°N 91.34°W (Elev. 758 ft)
Last Update:
10:47 pm CDT Jun 21, 2025
Forecast Valid:
2am CDT Jun 22, 2025-6pm CDT Jun 28, 2025
 
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