Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

83°F

28°C

Humidity	78%
Wind Speed	S 14 G 20 mph
Barometer	29.81 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	29 Jun 9:15 pm CDT

More Information:

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

Extended Forecast for

Brooklyn IA

Extreme Heat Warning June 29, 09:27pm until July 1, 10:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning June 29, 09:27pm until July 1, 10:00pm
NOW until 10:00pm Wed
Extreme Heat Warning
Tonight
Low: 75 °F
Partly Cloudy
and Breezy
then Partly
Cloudy
Tuesday
High: 96 °F
Sunny and
Breezy
Tuesday Night
Low: 74 °F
Partly Cloudy
Wednesday
High: 95 °F
Sunny then
Sunny and
Breezy
Wednesday Night
Low: 75 °F
Partly Cloudy
then Slight
Chance
T-storms
Thursday
High: 93 °F
Chance
T-storms then
Chance
Showers
Thursday Night
Low: 72 °F
Chance
T-storms
Friday
High: 92 °F
Chance
Showers

Detailed Forecast

Tonight

Partly cloudy, with a low around 75. Breezy, with a south southwest wind 11 to 17 mph, with gusts as high as 25 mph.

Tuesday

Sunny, with a high near 96. Heat index values as high as 105. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 26 mph.

Tuesday Night

Partly cloudy, with a low around 74. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.

Wednesday

Sunny, with a high near 95. Heat index values as high as 100. Breezy, with a south southwest wind 9 to 16 mph, with gusts as high as 25 mph.

Wednesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South southwest wind 10 to 15 mph, with gusts as high as 24 mph.

Thursday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 93. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72.

Friday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 92.

Friday Night

Partly cloudy, with a low around 70.

Independence Day

Mostly sunny, with a high near 92.

Saturday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

Sunday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.