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

36°F

2°C

Humidity 67%
Wind Speed NW 12 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 9 Apr 2:53 am CDT
Extended Forecast for

Thornton IA

  • Overnight

    Overnight: Mostly clear, with a low around 32. Northwest wind around 8 mph.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 5pm. Increasing clouds, with a high near 55. West northwest wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Sunny then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 33. North northeast wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 33 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 54. North wind 7 to 9 mph.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35. Light and variable wind becoming east southeast around 6 mph after midnight.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 58. Breezy. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. Windy. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely and
    Windy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Windy. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely and
    Windy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers before 1am. Partly cloudy, with a low around 58. Windy.

    Low: 58 °F

    Chance
    Showers and
    Windy

Detailed Forecast

Overnight
Mostly clear, with a low around 32. Northwest wind around 8 mph.
Thursday
A 30 percent chance of showers, mainly after 5pm. Increasing clouds, with a high near 55. West northwest wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers likely, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 33. North northeast wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Sunny, with a high near 54. North wind 7 to 9 mph.
Friday Night
Mostly clear, with a low around 35. Light and variable wind becoming east southeast around 6 mph after midnight.
Saturday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 58. Breezy. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. Windy. Chance of precipitation is 70%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Windy. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 58. Windy.
Monday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 80. Windy.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 52. Breezy. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 67. Breezy. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 41. Breezy. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 59. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Thornton IA
 42.95°N 93.37°W
Last Update:
1:26 am CDT Apr 9, 2026
Forecast Valid:
3am CDT Apr 9, 2026-6pm CDT Apr 15, 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