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

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

43°F

6°C

Humidity 80%
Wind Speed SW 16 G 24 mph
Barometer 29.76 in (1007.7 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 16 Feb 2:53 am CST
Extended Forecast for

Grafton IA

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 39. South southwest wind around 10 mph.

    Low: 39 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 57. West southwest wind 5 to 9 mph becoming east northeast in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. East wind 6 to 10 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. Windy, with an east southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 57 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Partly cloudy, with a low around 42. Breezy, with a southeast wind 13 to 18 mph becoming west southwest after midnight. Winds could gust as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 54. Windy.

    High: 54 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain and snow after noon. Partly sunny, with a high near 44. Chance of precipitation is 30%.

    High: 44 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 50%.

    Low: 24 °F

    Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 39. South southwest wind around 10 mph.
Washington's Birthday
Mostly sunny, with a high near 57. West southwest wind 5 to 9 mph becoming east northeast in the afternoon.
Monday Night
Partly cloudy, with a low around 37. East wind 6 to 10 mph.
Tuesday
Partly sunny, with a high near 57. Windy, with an east southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.
Tuesday Night
A 50 percent chance of rain. Partly cloudy, with a low around 42. Breezy, with a southeast wind 13 to 18 mph becoming west southwest after midnight. Winds could gust as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 54. Windy.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
A chance of rain and snow after noon. Partly sunny, with a high near 44. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 34.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 32.
Saturday Night
A 30 percent chance of snow. Partly cloudy, with a low around 14.
Sunday
Mostly sunny, with a high near 26. Blustery.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grafton IA
 43.32°N 93.07°W
Last Update:
3:16 am CST Feb 16, 2026
Forecast Valid:
3am CST Feb 16, 2026-6pm CST Feb 22, 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