National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Hazardous Weather Conditions

Current Conditions

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Ottumwa IA

7 Day Forecast

For More Weather Information:

Des Moines, IA Local Forecast Office

Overnight

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 50 °F

Sunday

Rain Chance for Measurable Precipitation 90%

Rain

High: 54 °FFalling Temperatures

Sunday
Night

Rain/Snow Chance for Measurable Precipitation 90%

Rain/Snow

Low: 29 °F

Monday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 32 °F

Monday
Night

Breezy

Breezy

Low: 19 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 32 °F

Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 24 °F

Wednesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 38 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 20 °F

Detailed Forecast

  • Overnight Rain likely, mainly after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 50. South wind around 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
  • Sunday Rain. Patchy fog before 7am. Temperature rising to near 54 by noon, then falling to around 49 during the remainder of the day. South wind 7 to 13 mph becoming north in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
  • Sunday Night Rain before midnight, then a chance of rain and snow between midnight and 3am, then a chance of snow after 3am. Low around 29. Windy, with a northwest wind 9 to 14 mph increasing to 17 to 22 mph in the evening. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
  • Monday A 30 percent chance of snow, mainly before noon. Cloudy, with a high near 32. Windy, with a west wind 20 to 22 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.
  • Monday Night Mostly cloudy, with a low around 19. Breezy, with a west northwest wind 14 to 18 mph, with gusts as high as 25 mph.
  • Tuesday Mostly sunny, with a high near 32.
  • Tuesday Night A 20 percent chance of snow. Mostly cloudy, with a low around 24.
  • Wednesday A 20 percent chance of snow. Mostly cloudy, with a high near 38.
  • Wednesday Night Mostly cloudy, with a low around 20.
  • Thanksgiving Day Partly sunny, with a high near 29. Blustery.
  • Thursday Night Partly cloudy, with a low around 13.
  • Friday Partly sunny, with a high near 27.
  • Friday Night Partly cloudy, with a low around 17.
  • Saturday Mostly sunny, with a high near 29.