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Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fog/Mist

70°F

21°C

Humidity 97%
Wind Speed S 7 mph
Barometer 29.94 in (1012.9 mb)
Dewpoint 69°F (21°C)
Visibility 5.00 mi
Last update 25 Jul 8:53 am CDT
Extended Forecast for

Plymouth IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Heat Advisory July 25, 12:00pm until July 26, 12:00pm
Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Heat Advisory
Extreme Heat Warning

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 100. South southwest wind 5 to 9 mph.

    High: 90 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 92. Heat index values as high as 109. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 92 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74. South southwest wind around 11 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday

    Monday: Sunny, with a high near 92. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 100. South southwest wind 5 to 9 mph.
Tonight
Increasing clouds, with a low around 72. South wind around 6 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 92. Heat index values as high as 109. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74. South southwest wind around 11 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Sunny, with a high near 92. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plymouth IA
 43.23°N 93.13°W
Last Update:
8:32 am CDT Jul 25, 2026
Forecast Valid:
9am 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