Heavy Rain in the Appalachians and Central Gulf Coast; Heat Continues in the West; Monitoring the Tropics

Heavy to excessive rainfall over the southern Appalachians and portions of the central Gulf Coast may bring areas of flooding today. Hot temperatures are in place through today across much of the western U.S. and New England. Tropical Storm Erin is forecast to become a Major Hurricane this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Mostly Cloudy

77°F

25°C

Humidity	80%
Wind Speed	Calm
Barometer	29.98 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	12 Aug 12:15 pm CDT

More Information:

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

Extended Forecast for

Hartwick IA

This Afternoon
High: 82 °F
Partly Sunny
Tonight
Low: 59 °F
Slight Chance
T-storms then
Mostly Clear
Wednesday
High: 80 °F
Sunny
Wednesday Night
Low: 59 °F
Mostly Clear
Thursday
High: 81 °F
Sunny
Thursday Night
Low: 65 °F
Mostly Clear
Friday
High: 87 °F
Mostly Sunny
Friday Night
Low: 71 °F
Partly Cloudy
Saturday
High: 90 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Partly sunny, with a high near 82. West wind 3 to 6 mph.

Tonight

A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 59. North northwest wind 3 to 6 mph.

Wednesday

Sunny, with a high near 80. Light north wind.

Wednesday Night

Mostly clear, with a low around 59. Calm wind.

Thursday

Sunny, with a high near 81. Calm wind becoming south southeast 5 to 8 mph in the morning.

Thursday Night

Mostly clear, with a low around 65.

Friday

Mostly sunny, with a high near 87.

Friday Night

Partly cloudy, with a low around 71.