Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

73°F

23°C

Humidity 66%
Wind Speed NE 5 mph
Barometer 29.99 in (1014.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Aug 12:53 pm CDT
Extended Forecast for

3 Miles SE Mason City Municipal Airport IA

  • This Afternoon

    This Afternoon: Mostly cloudy early, then becoming sunny, with a high near 78. North northeast wind around 6 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 56. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 4am, then a chance of showers after 5am.  Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 62. South southwest wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers before 7am.  Sunny, with a high near 81. West southwest wind around 8 mph becoming northwest in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 81 °F

    Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Mostly clear, with a low around 61.

    Low: 61 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy early, then becoming sunny, with a high near 78. North northeast wind around 6 mph.
Tonight
Mostly clear, with a low around 56. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Showers and thunderstorms likely before 4am, then a chance of showers after 5am. Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 62. South southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers before 7am. Sunny, with a high near 81. West southwest wind around 8 mph becoming northwest in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Mostly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Mason City Municipal Airport IA
 43.13°N 93.28°W
12:11 pm CDT Aug 19, 2026
1pm CDT Aug 19, 2026-6pm CDT Aug 25, 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