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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Mostly Cloudy

66°F

19°C

Humidity 70%
Wind Speed SE 12 G 21 mph
Barometer 30.27 in (1024.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 25 Sep 12:53 pm CDT
Extended Forecast for

Plymouth IA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 67. Southeast wind 8 to 10 mph.

    High: 67 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 55. Southeast wind 6 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers. High near 60. Southeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 3am, then showers likely and possibly a thunderstorm after 3am. Cloudy, with a steady temperature around 58. Southeast wind 6 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Cloudy, with a high near 65. Southeast wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 67. Southeast wind 8 to 10 mph.
Tonight
A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 55. Southeast wind 6 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers. High near 60. Southeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 3am, then showers likely and possibly a thunderstorm after 3am. Cloudy, with a steady temperature around 58. Southeast wind 6 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 30 percent chance of showers before 1pm. Cloudy, with a high near 65. Southeast wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly cloudy, with a low around 55.
Monday
Partly sunny, with a high near 69.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 56.
Tuesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Tuesday Night
Showers likely, mainly before 1am. Cloudy, with a low around 57. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 67.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Thursday
Mostly cloudy, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Plymouth IA
 43.25°N 93.13°W
Last Update:
1:26 pm CDT Sep 25, 2026
Forecast Valid:
1pm CDT Sep 25, 2026-6pm CDT Oct 1, 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