Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Ankeny Regional Airport (KIKV)

Lat: 41.69°NLon: 93.57°WElev: 886ft.

Fog/Mist

72°F

22°C

Humidity	100%
Wind Speed	N 6 mph
Barometer	29.87 in
Dewpoint	72°F (22°C)
Visibility	6.00 mi
Last update	10 Aug 4:55 am CDT

More Information:

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

Extended Forecast for

Grimes IA

Today
High: 87 °F
Slight Chance
T-storms and
Patchy Fog
then Partly
Sunny
Tonight
Low: 72 °F
Mostly Cloudy
then Chance
T-storms
Tuesday
High: 89 °F
Chance
T-storms then
Mostly Sunny
Tuesday Night
Low: 70 °F
Partly Cloudy
then Chance
T-storms
Wednesday
High: 86 °F
Chance
T-storms
Wednesday Night
Low: 68 °F
Slight Chance
T-storms then
T-storms
Likely
Thursday
High: 77 °F
Showers
Thursday Night
Low: 64 °F
Chance
T-storms then
Showers
Likely
Friday
High: 77 °F
Chance
T-storms

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms before 9am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 87. Light and variable wind becoming east 5 to 8 mph in the morning.

Tonight

A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 72. East wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny, with a high near 89. South southeast wind around 7 mph becoming west northwest in the afternoon. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. East wind 3 to 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 86. East wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

Friday

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.

Friday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.

Saturday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

Sunday

A 30 percent chance of showers. Partly sunny, with a high near 76.