Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Overcast

63°F

17°C

Humidity	99%
Wind Speed	Calm
Barometer	29.81 in
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	19 May 3:35 am CDT

More Information:

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

Extended Forecast for

Deep River IA

Overnight
Low: 63 °F
Slight Chance
T-storms
Tuesday
High: 63 °F
Chance
Showers then
Mostly Cloudy
Tuesday Night
Low: 42 °F
Decreasing
Clouds
Wednesday
High: 64 °F
Increasing
Clouds
Wednesday Night
Low: 44 °F
Mostly Cloudy
Thursday
High: 64 °F
Mostly Cloudy
then Chance
Showers
Thursday Night
Low: 47 °F
Chance
Showers then
Showers
Likely
Friday
High: 64 °F
Showers
Likely
Friday Night
Low: 49 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 63. South southwest wind around 13 mph, with gusts as high as 25 mph.

Tuesday

A slight chance of showers and thunderstorms before 8am, then a chance of rain between 8am and 9am. Mostly cloudy, with a high near 63. Northwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

Tuesday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around 42. North wind 7 to 11 mph, with gusts as high as 20 mph.

Wednesday

Increasing clouds, with a high near 64. Northeast wind 7 to 9 mph.

Wednesday Night

Mostly cloudy, with a low around 44. East northeast wind 5 to 8 mph.

Thursday

A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 64. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 47. Chance of precipitation is 70%.

Friday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

Friday Night

Mostly cloudy, with a low around 49.

Saturday

Partly sunny, with a high near 74.

Saturday Night

Mostly cloudy, with a low around 52.

Sunday

Mostly sunny, with a high near 82.

Sunday Night

Partly cloudy, with a low around 59.

Memorial Day

Mostly sunny, with a high near 85.