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

Tonight
Low: 63 °F
Partly Cloudy
Tuesday
High: 79 °F
Showers
Likely then
Chance
T-storms
Tuesday Night
Low: 62 °F
Chance
T-storms
Wednesday
High: 78 °F
Partly Sunny
Wednesday Night
Low: 59 °F
Partly Cloudy
Thursday
High: 79 °F
Sunny
Thursday Night
Low: 61 °F
Chance
T-storms
Friday
High: 81 °F
Slight Chance
T-storms then
Chance
Showers
Friday Night
Low: 61 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Tonight

Partly cloudy, with a low around 63. South wind 3 to 6 mph.

Tuesday

A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 79. Southwest wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

A 40 percent chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 62. Light and variable wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

Partly sunny, with a high near 78. Light northeast wind.

Wednesday Night

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

Thursday

Sunny, with a high near 79.

Thursday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 61.

Friday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 81.

Friday Night

A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 61. Chance of precipitation is 50%.