Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Overcast

74°F

23°C

Humidity	91%
Wind Speed	N 10 mph
Barometer	30.06 in (1017.2 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	30 Jul 2:53 pm CDT

More Information:

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

Extended Forecast for

4 Miles S Martinsburg IA

This Afternoon
High: 80 °F
Chance
T-storms
Tonight
Low: 62 °F
Showers
Likely then
Chance
Showers
Thursday
High: 75 °F
Slight Chance
Showers then
Mostly Sunny
Thursday Night
Low: 55 °F
Mostly Clear
Friday
High: 75 °F
Sunny
Friday Night
Low: 55 °F
Mostly Clear
Saturday
High: 76 °F
Mostly Sunny
Saturday Night
Low: 56 °F
Partly Cloudy
Sunday
High: 77 °F
Mostly Sunny

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly before 5pm. Mostly cloudy, with a high near 80. Northeast wind around 7 mph. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms likely before 4am, then a chance of showers. Cloudy, with a low around 62. North northeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 75. Northeast wind around 14 mph, with gusts as high as 22 mph.

Thursday Night

Mostly clear, with a low around 55. North northeast wind 7 to 10 mph.

Friday

Sunny, with a high near 75. East northeast wind 7 to 10 mph.

Friday Night

Mostly clear, with a low around 55.

Saturday

Mostly sunny, with a high near 76.

Saturday Night

Partly cloudy, with a low around 56.

Sunday

Mostly sunny, with a high near 77.