Widespread Damaging Winds Likely in the Northern Plains; Heat Continues in the Central and Southeast U.S.

Severe thunderstorms, heavy rainfall, and flooding are possible from the northern Rockies into the Upper Midwest. A derecho is likely across portions of the northern Plains, with several gusts expected to exceed 75 mph. Extreme heat is expected to intensify across much of the Southeast and Tennessee Valley, continuing through much of this week. Read More >

Hazardous Weather Conditions

Current conditions at

Iowa City Municipal Airport (KIOW)

Lat: 41.64°NLon: 91.54°WElev: 650ft.

Partly Cloudy

78°F

26°C

Humidity	90%
Wind Speed	Calm
Barometer	30.13 in (1019.5 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	29 Jul 1:52 am CDT

More Information:

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

Extended Forecast for

6 Miles SW Tiffin IA

Severe T-storm Watch until July 29, 04:00am

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch until July 29, 04:00am
NOW until 4:00am Tue
Severe T-storm Watch
Overnight
Low: 71 °F
Severe
Thunderstorms
Tuesday
High: 89 °F
Scattered
Showers then
Isolated
T-storms
Tuesday Night
Low: 72 °F
Scattered
Showers then
Showers
Likely
Wednesday
High: 77 °F
T-storms then
Showers
Likely
Wednesday Night
Low: 61 °F
Chance
T-storms
Thursday
High: 76 °F
Mostly Sunny
Thursday Night
Low: 55 °F
Partly Cloudy
Friday
High: 75 °F
Sunny

Detailed Forecast

Overnight

Showers and possibly a thunderstorm. Some of the storms could be severe and produce heavy rainfall. Low around 71. Light and variable wind becoming north 5 to 10 mph. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

Scattered showers and thunderstorms before 7am, then isolated showers and thunderstorms after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 89. Heat index values as high as 100. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Tuesday Night

Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 72. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday

Showers and possibly a thunderstorm. High near 77. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.

Thursday

Mostly sunny, with a high near 76.

Thursday Night

Partly cloudy, with a low around 55.

Friday

Sunny, with a high near 75.

Friday Night

Mostly clear, with a low around 55.

Saturday

Mostly sunny, with a high near 76.