Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

50°F

10°C

Humidity 63%
Wind Speed S 20 mph
Barometer 30.23 in (1023.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 18 Oct 9:53 am CDT
Extended Forecast for

Chapin IA

  • Today

    Today: Sunny, with a high near 66. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 66 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 41. South southwest wind 3 to 7 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 65. Calm wind becoming south around 6 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. Light south southeast wind.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 66. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 41. South southwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 65. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 40. Light south southeast wind.
Tuesday
Sunny, with a high near 67. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 51.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Chapin IA
 42.84°N 93.23°W
10:43 am CDT Oct 18, 2026
10am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
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