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Severe Thunderstorms and Heavy Rain in Upper Midwest

A slow moving frontal boundary from the central Pains to the Upper Midwest will bring a potential for severe thunderstorms and heavy rain. Rain amounts of 1-3 inches, with locally heavier amounts can be expected. The threat of severe weather moves into the Ohio Valley and Northeast on Tuesday. Monsoon moisture continues to bring the threat of flash flooding to the Southwest and southern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Thunderstorm in Vicinity

71°F

22°C

Humidity 87%
Wind Speed SW 8 G 18 mph
Barometer 30.07 in (1016.7 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 21 Aug 3:53 am CDT
Extended Forecast for

Mason City Municipal Airport IA

  • Overnight

    Overnight: Showers and thunderstorms likely.  Cloudy, with a low around 66. South wind around 5 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely

    Low: 66 °F

  • Monday

    Monday: Showers and thunderstorms, mainly before 2pm.  High near 78. South wind 6 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms

    High: 78 °F

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely, mainly before midnight.  Mostly cloudy, with a low around 61. Northwest wind 7 to 9 mph.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    T-storms
    Likely then
    Slight Chance
    T-storms

    Low: 61 °F

  • Tuesday

    Tuesday: Sunny, with a high near 74. North northwest wind 9 to 13 mph, with gusts as high as 21 mph.

    Sunny

    High: 74 °F

  • Tuesday
    Night

    Tuesday Night: Clear, with a low around 50. West northwest wind 6 to 9 mph.

    Clear

    Low: 50 °F

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    Sunny

    High: 75 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 51.

    Partly Cloudy

    Low: 51 °F

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 73.

    Slight Chance
    T-storms

    High: 73 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 55.

    Partly Cloudy

    Low: 55 °F

Detailed Forecast

Overnight
Showers and thunderstorms likely. Cloudy, with a low around 66. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms, mainly before 2pm. High near 78. South wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 61. Northwest wind 7 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Sunny, with a high near 74. North northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
Clear, with a low around 50. West northwest wind 6 to 9 mph.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Partly sunny, with a high near 75.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
Partly sunny, with a high near 77.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Click Map For Forecast
Point Forecast:
Mason City Municipal Airport IA
 43.15°N 93.34°W
3:48 am CDT Aug 21, 2017
5am CDT Aug 21, 2017-6pm CDT Aug 27, 2017
 
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