National Weather Service

News Headlines

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

49°F

9°C

Humidity	66%
Wind Speed	Calm
Barometer	29.85 in
Dewpoint	38°F (3°C)
Visibility	10.00 mi
Last update	30 Mar 4:15 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles NNW Hartwick IA

Today
High: 83 °F
Increasing
Clouds
Tonight
Low: 61 °F
Chance
T-storms
Tuesday
High: 70 °F⇓
Breezy.
Slight Chance
T-storms then
Chance
Showers
Tuesday Night
Low: 36 °F
Slight Chance
Showers and
Breezy
Wednesday
High: 46 °F
Chance
Showers then
Showers
Likely and
Breezy
Wednesday Night
Low: 34 °F
Showers and
Breezy
Thursday
High: 51 °F
Showers
Thursday Night
Low: 33 °F
Chance Rain
Friday
High: 58 °F
Mostly Cloudy
then Chance
Rain

Detailed Forecast

Today

Increasing clouds, with a high near 83. South wind 6 to 15 mph, with gusts as high as 22 mph.

Tonight

A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 61. South southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a temperature rising to near 70 by 11am, then falling to around 60 during the remainder of the day. Breezy, with a south southwest wind 14 to 18 mph becoming north in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 36. Breezy, with a north wind 13 to 17 mph, with gusts as high as 28 mph.

Wednesday

Showers likely, mainly after 1pm. Mostly cloudy, with a high near 46. Breezy, with an east northeast wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night

Showers before 1am, then rain after 1am. Low around 34. Breezy. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Showers. High near 51. Chance of precipitation is 90%.

Thursday Night

A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 33.

Friday

A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 58.

Friday Night

Rain likely. Mostly cloudy, with a low around 40. Breezy. Chance of precipitation is 70%.

Saturday

A 50 percent chance of rain. Mostly cloudy, with a high near 51. Breezy.

Saturday Night

Mostly cloudy, with a low around 30. Blustery.