Heavy Rainfall and Flooding in the Mid-Atlantic; Heat and Wildfire Concerns in the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region through tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the West with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

67°F

19°C

Humidity	95%
Wind Speed	Calm
Barometer	30.07 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	15 Jul 1:55 am CDT

More Information:

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

Extended Forecast for

Grinnell IA

Overnight
Low: 66 °F
Clear
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 70 °F
Increasing
Clouds
Wednesday
High: 86 °F
Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 63 °F
Showers
Likely
Thursday
High: 75 °F
Slight Chance
T-storms
Thursday Night
Low: 61 °F
Mostly Cloudy
then Slight
Chance
Showers
Friday
High: 79 °F
Partly Sunny
Friday Night
Low: 66 °F
Mostly Cloudy
then Chance
T-storms

Detailed Forecast

Overnight

Clear, with a low around 66. South wind around 5 mph.

Tuesday

Sunny, with a high near 87. South wind 5 to 9 mph.

Tuesday Night

Increasing clouds, with a low around 70. South southeast wind 3 to 5 mph.

Wednesday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South wind 6 to 9 mph becoming west in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. North northwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 20%.

Thursday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61.

Friday

Partly sunny, with a high near 79.

Friday Night

A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.

Saturday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.