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.

Overcast and Breezy

24°F

-4°C

Humidity 75%
Wind Speed NW 22 G 30 mph
Barometer 30.37 in (1029.9 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 27 Nov 11:53 am CST
Extended Forecast for

Grafton IA

Winter Storm Watch November 28, 06:00pm until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Watch

  • Thanksgiving Day

    Thanksgiving Day: Partly sunny, with a high near 28. Blustery, with a northwest wind 13 to 16 mph, with gusts as high as 24 mph.

    High: 28 °F

    Partly Sunny
    and Blustery

  • Tonight

    Tonight: Mostly cloudy, with a low around 15. Wind chill values as low as 5. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 26. Wind chill values as low as 5. Northwest wind around 6 mph becoming calm in the morning.

    High: 26 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Snow, mainly after 8pm. Low around 19. Wind chill values as low as 10. Light east southeast wind becoming east 5 to 10 mph in the evening. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 19 °F

    Snow

  • Saturday

    Saturday: Snow. High near 27. East wind 10 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 27 °F

    Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 11. Chance of precipitation is 70%.

    Low: 11 °F

    Snow Likely
    then Chance
    Snow

  • Sunday

    Sunday: Partly sunny, with a high near 18.

    High: 18 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -3.

    Low: -3 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 13.

    High: 13 °F

    Partly Sunny

Detailed Forecast

Thanksgiving Day
Partly sunny, with a high near 28. Blustery, with a northwest wind 13 to 16 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 15. Wind chill values as low as 5. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.
Friday
Mostly cloudy, with a high near 26. Wind chill values as low as 5. Northwest wind around 6 mph becoming calm in the morning.
Friday Night
Snow, mainly after 8pm. Low around 19. Wind chill values as low as 10. Light east southeast wind becoming east 5 to 10 mph in the evening. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Saturday
Snow. High near 27. East wind 10 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 11. Chance of precipitation is 70%.
Sunday
Partly sunny, with a high near 18.
Sunday Night
Mostly cloudy, with a low around -3.
Monday
Partly sunny, with a high near 13.
Monday Night
Mostly cloudy, with a low around 3.
Tuesday
Partly sunny, with a high near 19.
Tuesday Night
Mostly cloudy, with a low around 10.
Wednesday
Mostly cloudy, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grafton IA
 43.32°N 93.07°W
Last Update:
11:42 am CST Nov 27, 2025
Forecast Valid:
12pm CST Nov 27, 2025-6pm CST Dec 3, 2025
 
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