Hazardous Weather Conditions
Current conditions at
Ottumwa Regional Airport (KOTM)
Lat: 41.1°NLon: 92.44°WElev: 830ft.
Overcast
80°F
27°C
| Humidity | 82% |
| Wind Speed | S 5 mph |
| Barometer | 29.96 in (1013.8 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 25 Jul 1:53 pm CDT |
Extended Forecast for
4 Miles SSE Martinsburg IA
Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
This Afternoon

High: 90 °F
Mostly Sunny
Tonight

Low: 72 °F
Partly Cloudy
Sunday
High: 96 °F
Slight Chance
T-storms then
Partly SunnySunday Night

Low: 77 °F
Partly Cloudy
Monday

High: 96 °F
Sunny
Monday Night

Low: 72 °F
Mostly Clear
Tuesday

High: 90 °F
Mostly Sunny
Tuesday Night

Low: 68 °F
Mostly Clear
Wednesday

High: 89 °F
Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 90. Heat index values as high as 100. Southwest wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 72. Calm wind becoming south southeast around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 9am. Mostly cloudy through mid morning, then becoming sunny, with a high near 96. Heat index values as high as 112. South southwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 77. South southwest wind around 10 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 96. West southwest wind around 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 68.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles SSE Martinsburg IA
41.11°N 92.24°W
41.11°N 92.24°W
1:26 pm CDT Jul 25, 2026
2pm CDT Jul 25, 2026-6pm CDT Jul 31, 2026



