Tracking Major Hurricane Erin; Hot in the Mid-Mississippi Valley

Major Hurricane Erin is tracking just north of the lower Bahamas today. Dangerous surf and rip current threats increase this week for most of the Atlantic coastline. Erin's outerbands may impact the Outer Banks later this week. Hot to extremely hot temperatures are forecast today and Tuesday from a part of the southern Plains into the central to lower Mississippi River Valley. Read More >

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Partly Cloudy

80°F

27°C

Humidity 74%
Wind Speed W 10 mph
Barometer 29.96 in (1013.0 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Aug 1:53 pm CDT
Extended Forecast for

3 Miles W Mason City IA

Flood Warning until August 22, 01:00am
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning until August 22, 01:00am

    NOW until 1:00am Fri

    Flood Warning

  • This Afternoon

    High: 82 °F

    Partly Sunny

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 68. North northwest wind 3 to 6 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am.  Otherwise, partly sunny, with a high near 82. North wind 3 to 7 mph.

    High: 82 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 64. North wind around 5 mph becoming calm  in the evening.

    Low: 64 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Sunny, with a high near 81. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Partly sunny, with a high near 82. West wind around 8 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 68. North northwest wind 3 to 6 mph.
Tuesday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 82. North wind 3 to 7 mph.
Tuesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 81. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 59.
Friday
Partly sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 69.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Mason City IA
 43.15°N 93.25°W
2:34 pm CDT Aug 18, 2025
2pm CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
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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