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

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

86°F

30°C

Humidity 55%
Wind Speed S 7 mph
Barometer 29.90 in (1010.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 2 Sep 2:53 pm CDT
Extended Forecast for

Mason City IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. South wind around 6 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 68. Southeast wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny, with a high near 86. South southwest wind 5 to 8 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms then
    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 70. East southeast wind around 6 mph becoming south after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 88. South wind around 6 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 87. South wind around 6 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 68. Southeast wind around 5 mph becoming calm.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny, with a high near 86. South southwest wind 5 to 8 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 70. East southeast wind around 6 mph becoming south after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 88. South wind around 6 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Labor Day
A 30 percent chance of showers. Partly sunny, with a high near 82.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 65.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mason City IA
 43.17°N 93.19°W
Last Update:
2:43 pm CDT Sep 2, 2026
Forecast Valid:
3pm CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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