Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Strong Thunderstorms and Heavy Rain Possible

A frontal boundary stretching from New Mexico across Texas and into the Gulf Coast will be the focus for strong to severe thunderstorms. Heavy rain, with local flooding is also possible in these areas. A low pressure area near the Carolina coast may also bring heavy rain and local flooding. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

56°F

13°C

Humidity 67%
Wind Speed W 3 mph
Barometer 30.17 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 25 Jun 12:35 am CDT
Extended Forecast for

Grinnell IA

  • Overnight

    Overnight: Clear, with a low around 49. West wind 3 to 7 mph.

    Clear

    Low: 49 °F

  • Sunday

    Sunday: Sunny, with a high near 70. Breezy, with a west northwest wind 9 to 17 mph.

    Sunny and
    Breezy

    High: 70 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 50. West wind 5 to 13 mph, with gusts as high as 20 mph.

    Mostly Clear

    Low: 50 °F

  • Monday

    Monday: Mostly sunny, with a high near 72. Northwest wind 6 to 10 mph.

    Mostly Sunny

    High: 72 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 50. North northwest wind 5 to 8 mph becoming calm  in the evening.

    Mostly Clear

    Low: 50 °F

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    Sunny

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 63.

    Partly Cloudy
    then Chance
    T-storms

    Low: 63 °F

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 1pm.  Mostly cloudy, with a high near 82. Breezy.  Chance of precipitation is 70%.

    T-storms
    Likely and
    Breezy

    High: 82 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am.  Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 67 °F

Detailed Forecast

Overnight
Clear, with a low around 49. West wind 3 to 7 mph.
Sunday
Sunny, with a high near 70. Breezy, with a west northwest wind 9 to 17 mph.
Sunday Night
Mostly clear, with a low around 50. West wind 5 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 72. Northwest wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 50. North northwest wind 5 to 8 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 78.
Tuesday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63.
Wednesday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 82. Breezy. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Click Map For Forecast
Point Forecast:
Grinnell IA
 41.75°N 92.72°W
11:47 pm CDT Jun 24, 2017
12am CDT Jun 25, 2017-6pm CDT Jun 30, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database