Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
46°F
8°C
| Humidity | 52% |
| Wind Speed | E 17 G 24 mph |
| Barometer | 29.83 in |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 39°F (4°C) |
| Last update | 14 Mar 6:15 pm CDT |
Extended Forecast for
Grinnell IA
Blizzard Warning March 15, 01:00pm until March 16, 07:00am
High Wind Warning March 15, 01:00pm until March 16, 04:00am
Tonight
Low: 43 °F⇑
Breezy.
Mostly Cloudy
then Chance
RainSunday
High: 52 °F⇓
Rain and
Windy then
Wintry Mix
and Patchy
Blowing SnowSunday Night

Low: 7 °F
Snow and
Blowing SnowMonday

High: 16 °F
Areas Blowing
Snow and
WindyMonday Night
Low: 2 °F
Mostly Clear
and Blustery
then Mostly
ClearTuesday
High: 30 °F
Partly Sunny
then Slight
Chance SnowTuesday Night

Low: 23 °F
Snow Likely
Wednesday

High: 49 °F
Sunny
Wednesday Night

Low: 33 °F
Partly Cloudy
Detailed Forecast
Tonight
A slight chance of rain between 3am and 4am, then a chance of rain and thunderstorms after 4am. Increasing clouds, with a temperature falling to near 43 by 10pm, then rising to around 49 during the remainder of the night. Breezy, with an east southeast wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Rain, snow, and sleet before 3pm, then snow, possibly mixed with rain. Some thunder is also possible. Patchy blowing snow after 4pm. Temperature rising to near 52 by 8am, then falling to around 31 during the remainder of the day. Very windy, with a south wind 16 to 26 mph becoming north northwest 27 to 37 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 100%. New snow and sleet accumulation of less than one inch possible.
Sunday Night
Snow, mainly before 1am. Widespread blowing snow, mainly after 8pm. Low around 7. Wind chill values as low as -15. Very windy, with a northwest wind 34 to 39 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Monday
Areas of blowing snow. Cloudy, then gradually becoming mostly sunny, with a high near 16. Wind chill values as low as -15. Windy, with a northwest wind 25 to 31 mph, with gusts as high as 41 mph.
Monday Night
Mostly clear, with a low around 2. Blustery, with a northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph.
Tuesday
A 20 percent chance of snow after 1pm. Partly sunny, with a high near 30.
Tuesday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Wednesday
Sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Partly sunny, with a high near 69.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Grinnell IA
41.75°N 92.69°W
41.75°N 92.69°W
6:12 pm CDT Mar 14, 2026
6pm CDT Mar 14, 2026-6pm CDT Mar 21, 2026



