Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. 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: 87 °F
Slight Chance
T-storms and
Patchy Fog
then Mostly
Sunny
Tonight
Low: 71 °F
Mostly Cloudy
then Slight
Chance
T-storms
Tuesday
High: 90 °F
Chance
T-storms then
Mostly Sunny
Tuesday Night
Low: 69 °F
Partly Cloudy
then Chance
T-storms
Wednesday
High: 87 °F
Chance
Showers
Wednesday Night
Low: 67 °F
Partly Cloudy
then Showers
Likely
Thursday
High: 78 °F
Showers
Thursday Night
Low: 63 °F
Chance
T-storms then
Showers
Likely
Friday
High: 77 °F
Chance
T-storms

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms before 11am. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Light and variable wind becoming east 5 to 7 mph in the morning.

Tonight

A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. East wind 3 to 5 mph.

Tuesday

A 40 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 90. South wind around 6 mph becoming northeast in the morning. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Light east northeast wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. Light east wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

Friday

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.

Friday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.

Saturday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.

Sunday

A 30 percent chance of showers. Partly sunny, with a high near 78.