National Weather Service United States Department of Commerce

Severe weather possible for parts of eastern U.S.

The NWS Storm Prediction Center is forecasting a risk of severe thunderstorms Tuesday afternoon & evening across parts of the Ohio Valley, Appalachians & eastern Great Lakes, from eastern Kentucky northeastward to central New York. The main threat will be strong, damaging wind gusts. Isolated strong to severe storms will also be possible across parts of the southern Plains & lower Miss. Valley.
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Hazardous Weather Conditions

Current Conditions

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Knoxville IA

7 Day Forecast

For More Weather Information:

Des Moines, IA Local Forecast Office

Tonight

Mostly Clear

Mostly
Clear

Low: 17 °C

Wednesday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 30 °C

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 23 °C

Thursday

Mostly Sunny

Mostly
Sunny

High: 32 °C

Thursday
Night

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

Low: 18 °C

Friday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 23 °C

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 13 °C

Saturday

Mostly Sunny

Mostly
Sunny

High: 22 °C

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 11 °C

Detailed Forecast

  • Tonight Mostly clear, with a low around 17. West wind 5 to 13 km/h becoming south southeast after midnight.
  • Wednesday A 30 percent chance of showers and thunderstorms, mainly between 7am and 9am. Partly sunny, with a high near 30. South wind 10 to 15 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 34 km/h. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
  • Wednesday Night Partly cloudy, with a low around 23. South wind 21 to 24 km/h, with gusts as high as 34 km/h.
  • Thursday Mostly sunny, with a high near 32. Heat index values as high as 38. South southwest wind 21 to 24 km/h, with gusts as high as 34 km/h.
  • Thursday Night Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 18. South southwest wind 13 to 16 km/h becoming north northwest after midnight. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible.
  • Friday A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 23. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
  • Friday Night Partly cloudy, with a low around 13.
  • Saturday Mostly sunny, with a high near 22.
  • Saturday Night Mostly clear, with a low around 11.
  • Sunday Sunny, with a high near 23.
  • Sunday Night Mostly clear, with a low around 13.
  • Monday Partly sunny, with a high near 24.
  • Monday Night A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 16.
  • Tuesday A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 24.