Areas of Severe Thunderstorms and Heavy Rain Possible through the Weekend

There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

70°F

21°C

Humidity	88%
Wind Speed	Calm
Barometer	30.00 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	28 Jun 3:15 am CDT

More Information:

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

Extended Forecast for

Hartwick IA

Overnight
Low: 67 °F
Mostly Clear
Saturday
High: 91 °F
Sunny
Saturday Night
Low: 69 °F
Mostly Clear
Sunday
High: 89 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 67 °F
T-storms then
Showers
Monday
High: 85 °F
Slight Chance
T-storms then
Slight Chance
Showers
Monday Night
Low: 62 °F
Mostly Clear
Tuesday
High: 85 °F
Sunny
Tuesday Night
Low: 64 °F
Mostly Clear

Detailed Forecast

Overnight

Mostly clear, with a steady temperature around 67. Light southeast wind.

Saturday

Sunny, with a high near 91. South wind 6 to 9 mph.

Saturday Night

Mostly clear, with a low around 69. South wind around 7 mph.

Sunday

A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 6 to 8 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers and possibly a thunderstorm. Low around 67. Southwest wind around 6 mph becoming north in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

Monday Night

Mostly clear, with a low around 62.

Tuesday

Sunny, with a high near 85.

Tuesday Night

Mostly clear, with a low around 64.

Wednesday

Mostly sunny, with a high near 87.

Wednesday Night

A 30 percent chance of showers. Partly cloudy, with a low around 66.

Thursday

Mostly sunny, with a high near 88.