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Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Pleasant, Mount Pleasant Municipal Airport (KMPZ)

Lat: 40.95°NLon: 91.51°WElev: 735ft.

Overcast

81°F

27°C

Humidity 79%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 25 Jul 2:15 pm CDT
Extended Forecast for

Yarmouth IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Extreme Heat Warning July 26, 11:00am until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 88. Southwest wind around 5 mph.

    High: 88 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 109. Southwest wind 5 to 10 mph.

    High: 93 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southwest wind around 10 mph.

    Low: 76 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 88. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 109. Southwest wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southwest wind around 10 mph.
Monday
Mostly sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 73.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 87.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yarmouth IA
 41.03°N 91.31°W (Elev. 827 ft)
Last Update:
2:01 pm CDT Jul 25, 2026
Forecast Valid:
2pm CDT Jul 25, 2026-6pm CDT Jul 31, 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