National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

48°F

9°C

Humidity 54%
Wind Speed S 10 mph
Barometer 29.75 in (1008.0 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 7 Jan 5:53 pm CST
Extended Forecast for

4 Miles SSE Martinsburg IA

  • Tonight

    Tonight: Increasing clouds, with a low around 38. South southeast wind around 8 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain, mainly after 11am. High near 52. South southeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 52 °F

    Rain Likely
    then Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 36. South wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain Likely
    then Slight
    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain after noon. Partly sunny, with a high near 43. North northwest wind around 10 mph, with gusts as high as 18 mph.

    High: 43 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A chance of rain before midnight, then a chance of rain and snow between midnight and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 30. North wind 7 to 10 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Partly sunny, with a high near 35. Breezy.

    High: 35 °F

    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 18. Blustery.

    Low: 18 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. South southeast wind around 8 mph.
Thursday
Rain, mainly after 11am. High near 52. South southeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 36. South wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 20 percent chance of rain after noon. Partly sunny, with a high near 43. North northwest wind around 10 mph, with gusts as high as 18 mph.
Friday Night
A chance of rain before midnight, then a chance of rain and snow between midnight and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 30. North wind 7 to 10 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 35. Breezy.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 18. Blustery.
Sunday
Sunny, with a high near 30.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Martinsburg IA
 41.11°N 92.24°W
Last Update:
5:26 pm CST Jan 7, 2026
Forecast Valid:
6pm CST Jan 7, 2026-6pm CST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation