Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

N/A

Humidity	NA
Wind Speed	NA
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	* Not a current observation *

More Information:

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

Extended Forecast for

Grinnell IA

Today
High: 79 °F
Chance
T-storms
Tonight
Low: 62 °F
Chance
T-storms then
Partly Cloudy
Wednesday
High: 79 °F
Decreasing
Clouds
Wednesday Night
Low: 59 °F
Partly Cloudy
Thursday
High: 79 °F
Sunny
Thursday Night
Low: 62 °F
Mostly Clear
then Chance
T-storms
Friday
High: 82 °F
Mostly Sunny
then Slight
Chance
T-storms
Friday Night
Low: 63 °F
Chance
T-storms
Saturday
High: 79 °F
Sunny

Detailed Forecast

Today

A 40 percent chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 79. West southwest wind 6 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Partly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

Mostly cloudy, then gradually becoming sunny, with a high near 79. Light northeast wind.

Wednesday Night

Partly cloudy, with a low around 59. Calm wind.

Thursday

Sunny, with a high near 79. Light and variable wind.

Thursday Night

A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 62. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.

Friday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63.

Saturday

Sunny, with a high near 79.

Saturday Night

Mostly clear, with a low around 59.

Sunday

Mostly sunny, with a high near 78.

Sunday Night

Mostly cloudy, with a low around 61.