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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

63°F

17°C

Humidity 81%
Wind Speed S 7 mph
Barometer 29.74 in (1005.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 12 Oct 6:53 am CDT
Extended Forecast for

Grafton IA

  • Columbus Day

    Columbus Day: Sunny, with a high near 88. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. South southwest wind 9 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71. North northwest wind 6 to 9 mph.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. North wind around 7 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. North northeast wind around 9 mph.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. Windy.

    Low: 41 °F

    Mostly Cloudy
    and Windy

  • Friday

    Friday: Mostly sunny, with a high near 55. Windy.

    High: 55 °F

    Mostly Sunny
    and Windy

Detailed Forecast

Columbus Day
Sunny, with a high near 88. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tonight
Partly cloudy, with a low around 56. South southwest wind 9 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 71. North northwest wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 50. North wind around 7 mph.
Wednesday
Mostly sunny, with a high near 66. North northeast wind around 9 mph.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Thursday Night
Mostly cloudy, with a low around 41. Windy.
Friday
Mostly sunny, with a high near 55. Windy.
Friday Night
Mostly clear, with a low around 32.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 65. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grafton IA
 43.34°N 93.07°W
Last Update:
6:26 am CDT Oct 12, 2026
Forecast Valid:
7am CDT Oct 12, 2026-6pm CDT Oct 18, 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