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

Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair with Haze

71°F

22°C

Humidity 51%
Wind Speed Calm
Barometer 30.44 in (1030.2 mb)
Dewpoint 52°F (11°C)
Visibility 6.00 mi
Last update 1 Aug 11:53 am CDT
Extended Forecast for

Mason City IA

  • This Afternoon

    This Afternoon: Areas of smoke. Mostly sunny, with a steady temperature around 73. East wind around 5 mph.

    High: 73 °F

    Areas Smoke

  • Tonight

    Tonight: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Areas of smoke after 11am. Mostly sunny, with a high near 74. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 74 °F

    Areas Smoke

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. South southeast wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75. South southeast wind 3 to 8 mph.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Areas of smoke. Mostly sunny, with a steady temperature around 73. East wind around 5 mph.
Tonight
Partly cloudy, with a low around 53. Calm wind.
Saturday
Areas of smoke after 11am. Mostly sunny, with a high near 74. Calm wind becoming south southeast around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 52. South southeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 75. South southeast wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mason City IA
 43.17°N 93.19°W
Last Update:
12:22 pm CDT Aug 1, 2025
Forecast Valid:
12pm CDT Aug 1, 2025-6pm CDT Aug 7, 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