Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Overcast

72°F

22°C

Humidity 63%
Wind Speed S 16 G 20 mph
Barometer 29.66 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 15 Apr 4:15 pm CDT
Extended Forecast for

3 Miles NNW Hartwick IA

Tornado Watch until April 15, 09:00pm
Click here for hazard details and duration
Tornado Watch
  •  
    Tornado Watch until April 15, 09:00pm

    NOW until 9:00pm Wed

    Tornado Watch

  • This Afternoon

    High: 71 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 11pm. Some of the storms could be severe.  Low around 52. Southwest wind 5 to 7 mph becoming north in the evening.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Severe
    Thunderstorms
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 74. Northwest wind around 7 mph becoming southwest in the afternoon.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. South southeast wind 6 to 9 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm.  High near 76. Breezy, with a south wind 11 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Breezy.
    Slight Chance
    T-storms then
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 1am, then a chance of showers.  Mostly cloudy, with a low around 35. Breezy.  Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    T-storms
    Likely then
    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: A slight chance of rain and snow showers before 1pm.  Mostly sunny, with a high near 50. Breezy.  Chance of precipitation is 20%.

    High: 50 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 71. South southwest wind around 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before 11pm. Some of the storms could be severe. Low around 52. Southwest wind 5 to 7 mph becoming north in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Sunny, with a high near 74. Northwest wind around 7 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 53. South southeast wind 6 to 9 mph.
Friday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 76. Breezy, with a south wind 11 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 35. Breezy. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
A slight chance of rain and snow showers before 1pm. Mostly sunny, with a high near 50. Breezy. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 68. Breezy.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
4:02 pm CDT Apr 15, 2026
4pm CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
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