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

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Overcast

76°F

24°C

Humidity 71%
Wind Speed S 12 mph
Barometer 29.86 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Jun 8:15 pm CDT
Extended Forecast for

Lynnville IA

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 66. East wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers
    Likely then
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 77. East wind 7 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 60. North northwest wind 5 to 10 mph becoming light west after midnight. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 86. West wind 3 to 8 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. South wind 6 to 8 mph.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Breezy.

    High: 90 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Clear, with a low around 75. Breezy.

    Low: 75 °F

    Clear and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 95. Windy.

    High: 95 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 75. Breezy.

    Low: 75 °F

    Clear and
    Breezy

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 66. East wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 77. East wind 7 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 60. North northwest wind 5 to 10 mph becoming light west after midnight. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 86. West wind 3 to 8 mph.
Thursday Night
Mostly clear, with a low around 67. South wind 6 to 8 mph.
Friday
Sunny, with a high near 90. Breezy.
Friday Night
Clear, with a low around 75. Breezy.
Saturday
Sunny, with a high near 95. Windy.
Saturday Night
Clear, with a low around 75. Breezy.
Sunday
Sunny, with a high near 95. Windy.
Sunday Night
Mostly clear, with a low around 74. Breezy.
Monday
Sunny, with a high near 94.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lynnville IA
 41.58°N 92.78°W
Last Update:
8:08 pm CDT Jun 17, 2025
Forecast Valid:
8pm CDT Jun 17, 2025-6pm CDT Jun 24, 2025
 
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