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

68°F

20°C

Humidity 93%
Wind Speed S 12 mph
Barometer 30.00 in (1014.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 16 Aug 4:53 am CDT
Extended Forecast for

6 Miles NNE Nora Springs IA

Heat Advisory August 16, 12:00pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 7 mph.

    Low: 69 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 9am. Partly sunny, with a high near 90. Heat index values as high as 102. South wind 6 to 10 mph.

    High: 90 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly between 2am and 3am. Mostly cloudy, with a low around 69. East wind 6 to 8 mph.

    Low: 69 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Heat index values as high as 96. Southeast wind 6 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southeast wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 87. West wind 8 to 10 mph.

    High: 87 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. West wind around 6 mph becoming north after midnight.

    Low: 66 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 80. North wind 6 to 8 mph.

    High: 80 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59. North wind 5 to 7 mph.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 7 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 9am. Partly sunny, with a high near 90. Heat index values as high as 102. South wind 6 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly between 2am and 3am. Mostly cloudy, with a low around 69. East wind 6 to 8 mph.
Sunday
A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Heat index values as high as 96. Southeast wind 6 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southeast wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 87. West wind 8 to 10 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. West wind around 6 mph becoming north after midnight.
Tuesday
Partly sunny, with a high near 80. North wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 59. North wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 76. Northeast wind around 7 mph.
Wednesday Night
Mostly clear, with a low around 57. Northeast wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. Light southeast wind.
Friday
Mostly sunny, with a high near 80. Light and variable wind becoming west 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Nora Springs IA
 43.21°N 92.95°W
Last Update:
4:29 am CDT Aug 16, 2025
Forecast Valid:
5am CDT Aug 16, 2025-6pm CDT Aug 22, 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