Isolated Severe Thunderstorms and Critical Fire Weather Tuesday

Isolated severe thunderstorms with strong wind gusts and hail will be possible Tuesday from parts of central Plains northeastward into the Midwest. Additional storms capable of damaging winds will be possible across the eastern Florida peninsula. Elevated to critical fire weather including gusty winds and low relative humidity is forecast again Tuesday over much of the northern Great Plains. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

51°F

11°C

Humidity	72%
Wind Speed	Calm
Barometer	29.98 in
Dewpoint	42°F (6°C)
Visibility	10.00 mi
Last update	12 May 5:35 am CDT

More Information:

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

Extended Forecast for

Sully IA

Today
High: 82 °F
Slight Chance
T-storms and
Windy then
Windy
Tonight
Low: 50 °F
Mostly Clear
and Breezy
then Clear
Wednesday
High: 73 °F
Sunny
Wednesday Night
Low: 46 °F
Clear
Thursday
High: 77 °F
Sunny then
Mostly Sunny
and Breezy
Thursday Night
Low: 57 °F
Showers
Likely and
Breezy
Friday
High: 87 °F
Slight Chance
Showers
Friday Night
Low: 58 °F
Mostly Clear
Saturday
High: 89 °F
Sunny

Detailed Forecast

Today

A slight chance of showers and thunderstorms before noon, then a chance of rain between noon and 2pm. Partly sunny, with a high near 82. Windy, with a south southwest wind 14 to 21 mph becoming west in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 20%.

Tonight

Mostly clear, with a low around 50. Breezy, with a northwest wind 9 to 16 mph, with gusts as high as 26 mph.

Wednesday

Sunny, with a high near 73. North northwest wind 8 to 14 mph, with gusts as high as 22 mph.

Wednesday Night

Clear, with a low around 46. North wind around 6 mph becoming light and variable.

Thursday

Mostly sunny, with a high near 77. Breezy, with a south southeast wind 7 to 17 mph, with gusts as high as 25 mph.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Breezy. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

A 20 percent chance of showers before 1pm. Sunny, with a high near 87.

Friday Night

Mostly clear, with a low around 58.

Saturday

Sunny, with a high near 89.

Saturday Night

Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 63. Chance of precipitation is 60%.

Sunday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Breezy. Chance of precipitation is 60%.

Sunday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.