Heavy Rainfall Possible Across the Central U.S.; Poor Air Quality Across the Northwest and North Central States

Thunderstorms will produce locally heavy rainfall and possibly some flash flooding across central portions of the country through tonight, with a few strong to locally severe thunderstorms possible. Otherwise, smoke from the wildfires burning across western North America will continue to create poor air quality across northern portions of the country. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Partly Cloudy

76°F

24°C

Humidity 77%
Wind Speed SE 7 mph
Barometer 29.98 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 19 Aug 10:15 am CDT
Extended Forecast for

Grinnell IA

  • Today

    Today: Partly sunny, with a high near 84. Southeast wind 6 to 8 mph.

    Partly Sunny

    High: 84 °F

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am.  Low around 66. East wind 7 to 11 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Chance
    Showers then
    Showers

    Low: 66 °F

  • Monday

    Monday: Showers and possibly a thunderstorm.  High near 76. East wind 9 to 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    T-storms

    High: 76 °F

  • Monday
    Night

    Monday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers.  Mostly cloudy, with a low around 61. Breezy, with a northwest wind 13 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms and
    Breezy

    Low: 61 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 75. North northwest wind around 15 mph, with gusts as high as 24 mph.

    Partly Sunny

    High: 75 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 54.

    Mostly Clear

    Low: 54 °F

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    Sunny

    High: 77 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 56.

    Mostly Clear

    Low: 56 °F

  • Thursday

    Thursday: Sunny, with a high near 80.

    Sunny

    High: 80 °F

Detailed Forecast

Today
Partly sunny, with a high near 84. Southeast wind 6 to 8 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 66. East wind 7 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm. High near 76. East wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 61. Breezy, with a northwest wind 13 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Partly sunny, with a high near 75. North northwest wind around 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 80.
Thursday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Saturday
Sunny, with a high near 86.
Click Map For Forecast
Point Forecast:
Grinnell IA
 41.75°N 92.72°W
10:03 am CDT Aug 19, 2018
10am CDT Aug 19, 2018-6pm CDT Aug 25, 2018
 
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Additional Resources

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Hourly Weather Forecast

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