Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

76°F

24°C

Humidity	82%
Wind Speed	SW 8 mph
Barometer	30.00 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	2 Jul 6:35 am CDT

More Information:

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

Extended Forecast for

4 Miles SE Gilman IA

Extreme Heat Warning July 2, 06:43am until July 2, 10:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 2, 06:43am until July 2, 10:00pm
NOW until 10:00pm Thu
Extreme Heat Warning
Today
High: 91 °F
Mostly Cloudy
then Slight
Chance
T-storms
Tonight
Low: 70 °F
Chance
T-storms then
Showers
Likely
Friday
High: 91 °F
Chance
Showers then
Slight Chance
T-storms
Friday Night
Low: 70 °F
Chance
T-storms then
Showers
Likely
Independence Day
High: 90 °F
Chance
Showers then
Chance
T-storms
Saturday Night
Low: 66 °F
Chance
T-storms
Sunday
High: 86 °F
Partly Sunny
Sunday Night
Low: 65 °F
Partly Cloudy

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 91. South southwest wind 5 to 14 mph, with gusts as high as 18 mph.

Tonight

A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 70. South wind 6 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 5pm. Cloudy during the morning, then mostly sunny during the afternoon, with a high near 91. South southeast wind 7 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter 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. Partly cloudy, with a low around 70. South wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Independence Day

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. West southwest wind around 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 66. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Partly sunny, with a high near 86.

Sunday Night

Partly cloudy, with a low around 65.

Monday

Mostly sunny, with a high near 88.

Monday Night

A 30 percent chance of showers before 1am. Partly cloudy, with a low around 65.

Tuesday

Mostly sunny, with a high near 89.

Tuesday Night

Partly cloudy, with a low around 66.