Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Partly Cloudy

86°F

30°C

Humidity	54%
Wind Speed	Calm
Barometer	30.00 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	14 Jun 3:35 pm CDT

More Information:

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

Extended Forecast for

Grinnell IA

This Afternoon
High: 86 °F
Mostly Sunny
Tonight
Low: 67 °F
Mostly Cloudy
then Slight
Chance
T-storms
Sunday
High: 84 °F
Chance
Showers then
Chance
T-storms
Sunday Night
Low: 66 °F
Chance
T-storms
Monday
High: 87 °F
Slight Chance
T-storms
Monday Night
Low: 68 °F
Chance
T-storms
Tuesday
High: 87 °F
Showers
Likely
Tuesday Night
Low: 65 °F
T-storms
Wednesday
High: 83 °F
Showers
Likely

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph.

Tonight

A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 67. Southeast wind 3 to 5 mph.

Sunday

A 40 percent chance of showers and thunderstorms, mainly after 9am. Partly sunny, with a high near 84. South southeast wind 5 to 8 mph. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South southeast wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. South wind 6 to 8 mph.

Monday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.

Tuesday Night

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 65. Chance of precipitation is 90%.

Wednesday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.

Wednesday Night

Partly cloudy, with a low around 62.

Juneteenth

Sunny, with a high near 85.

Thursday Night

Partly cloudy, with a low around 65.

Friday

Mostly sunny, with a high near 90.