Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fog/Mist

64°F

18°C

Humidity	100%
Wind Speed	Calm
Barometer	30.06 in
Dewpoint	64°F (18°C)
Visibility	2.00 mi
Last update	14 Jul 6:15 am CDT

More Information:

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

Extended Forecast for

5 Miles NNE Montezuma IA

Dense Fog Advisory July 14, 06:33am until July 14, 09:00am

Click here for hazard details and duration

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Dense Fog Advisory July 14, 06:33am until July 14, 09:00am
NOW until 9:00am Mon
Dense Fog Advisory
Today
High: 87 °F
Sunny
Tonight
Low: 65 °F
Mostly Clear
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 70 °F
Partly Cloudy
Wednesday
High: 87 °F
Chance
T-storms
Wednesday Night
Low: 67 °F
T-storms
Likely then
Heavy Rain
Thursday
High: 80 °F
Chance
T-storms
Thursday Night
Low: 63 °F
Slight Chance
Showers

Detailed Forecast

Today

Sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning.

Tonight

Mostly clear, with a low around 65. South wind 3 to 6 mph.

Tuesday

Sunny, with a high near 87. South wind 3 to 7 mph.

Tuesday Night

Partly cloudy, with a low around 70. South southeast wind around 5 mph.

Wednesday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South southeast wind 6 to 9 mph becoming west southwest in the afternoon. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Night

Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 67. Chance of precipitation is 60%. New rainfall amounts between 1 and 2 inches possible.

Thursday

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.

Thursday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 63.

Friday

Partly sunny, with a high near 80.

Friday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.

Saturday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

Saturday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.