Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Thunderstorm in Vicinity Light Rain

21°C

69°F

Humidity	93%
Wind Speed	SE 11 km/h
Barometer	1015.3 mb (30.00 in)
Dewpoint	19°C (67°F)
Visibility	16 km
Last update	20 Aug 8:53 am CDT

More Information:

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

Extended Forecast for

3 Miles W Chillicothe IA

Today

Severe
Thunderstorms
then Partly
Sunny
High: 32 °C
Tonight

Mostly Clear
then Chance
T-storms
Low: 22 °C
Wednesday

T-storms
Likely
High: 27 °C
Wednesday
Night

Chance
T-storms
Low: 16 °C
Thursday

Chance
T-storms
High: 26 °C
Thursday
Night

Partly Cloudy
then Slight
Chance
T-storms
Low: 15 °C
Friday

Slight Chance
T-storms
High: 26 °C
Friday
Night

Partly Cloudy
Low: 15 °C
Saturday

Mostly Sunny
High: 26 °C

Detailed Forecast

Today

A 40 percent chance of showers and thunderstorms before noon. Some of the storms could be severe. Cloudy, then gradually becoming mostly sunny, with a high near 32. East southeast wind 11 to 16 km/h becoming west southwest in the afternoon. New precipitation amounts between 7.5 mm and 1 cm possible.

Tonight

A 50 percent chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 22. Calm wind. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

Wednesday

Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 27. Northwest wind 5 to 11 km/h becoming north northeast in the afternoon. Chance of precipitation is 70%. New rainfall amounts between 5 and 7.5 mm possible.

Wednesday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 16. Calm wind. New rainfall amounts between 2.5 and 5 mm possible.

Thursday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 26. Northeast wind 3 to 8 km/h. New rainfall amounts between 2.5 and 5 mm possible.

Thursday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 15.

Friday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 26.

Friday Night

Partly cloudy, with a low around 15.

Saturday

Mostly sunny, with a high near 26.

Saturday Night

Partly cloudy, with a low around 17.

Sunday

Partly sunny, with a high near 28.