Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. 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

Sully IA

Today
High: 88 °F
T-storms
Likely then
Partly Sunny
Tonight
Low: 69 °F
Mostly Cloudy
then Chance
T-storms
Thursday
High: 83 °F
Showers
Thursday Night
Low: 67 °F
Showers
Friday
High: 84 °F
Showers
Likely
Friday Night
Low: 70 °F
Chance
T-storms then
Showers
Likely
Saturday
High: 88 °F
Chance
T-storms
Saturday Night
Low: 68 °F
Chance
T-storms
Sunday
High: 82 °F
Mostly Cloudy

Detailed Forecast

Today

Showers and thunderstorms likely, mainly before 11am. Partly sunny, with a high near 88. East wind 6 to 9 mph becoming north northwest in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. East wind around 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 83. East southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 67. East northeast wind 8 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 84. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88.

Saturday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.

Sunday

Mostly cloudy, with a high near 82.

Sunday Night

Mostly cloudy, with a low around 63.

Monday

Mostly sunny, with a high near 79.

Monday Night

Partly cloudy, with a low around 61.