Severe Weather and Heavy Rainfall in the Midwest and Desert Southwest; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall are possible in the Midwest into the Central Appalachians and the Desert Southwest early this week. Storms are also expected in parts of the northern Plains today. Fire weather and air quality concerns will persist across portions of the West. Mid-summer heat will continue across much of the CONUS this week, especially in the 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 Regional Airport IA

Tonight
Low: 70 °F
Mostly Clear
then Slight
Chance
T-storms
Tuesday
High: 89 °F
Slight Chance
T-storms then
Sunny
Tuesday Night
Low: 69 °F
Partly Cloudy
then Chance
T-storms
Wednesday
High: 87 °F
Chance
T-storms then
Chance
Showers
Wednesday Night
Low: 68 °F
Partly Cloudy
then Chance
T-storms
Thursday
High: 80 °F
Showers
Thursday Night
Low: 65 °F
Showers
Likely
Friday
High: 80 °F
Chance
T-storms
Friday Night
Low: 66 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

Tonight

A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.

Tuesday

A 20 percent chance of showers and thunderstorms, mainly between 8am and 9am. Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 100. East northeast wind around 7 mph becoming west southwest in the afternoon.

Tuesday Night

A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Increasing clouds, with a low around 69. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 87. East wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

Friday

A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 80.

Friday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Saturday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.

Saturday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

Sunday

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.

Sunday Night

Mostly cloudy, with a low around 62.

Monday

Mostly sunny, with a high near 76.