National Weather Service United States Department of Commerce

Severe weather is expected across the central and southern Plains on Wednesday

The Storm Prediction Center is forecasting severe weather for Wednesday across much of the central and southern Plains. Primary threats will be large hail and damaging winds. There could also be small tornado risk farther south along the dryline.
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Current Conditions

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Johnston IA

7 Day Forecast

Des Moines, IA

NWS Weather Forecast Office

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 46 °F

Wednesday

Scattered Showers Chance for Measurable Precipitation 50%

Scattered
Showers

High: 62 °F

Wednesday
Night

Thunderstorms Chance for Measurable Precipitation 90%

Thunderstorms

Low: 51 °F

Thursday

Thunderstorms Chance for Measurable Precipitation 80%

Thunderstorms

High: 66 °F

Thursday
Night

Mostly Clear

Mostly
Clear

Low: 44 °F

Friday

Breezy

Breezy

High: 71 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 43 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 58 °F

Saturday
Night

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

Low: 42 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 46. East southeast wind around 8 mph.
  • Wednesday Scattered showers and thunderstorms, mainly before 3pm. Mostly cloudy, with a high near 62. Windy, with a southeast wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
  • Wednesday Night Showers and thunderstorms, mainly after 1am. Low around 51. Breezy, with a southeast wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
  • Thursday Showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. High near 66. Breezy, with a south wind 9 to 18 mph becoming west northwest in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Thursday Night Mostly clear, with a low around 44. West southwest wind 8 to 14 mph, with gusts as high as 18 mph.
  • Friday Mostly sunny, with a high near 71. Breezy.
  • Friday Night Partly cloudy, with a low around 43.
  • Saturday Mostly sunny, with a high near 58.
  • Saturday Night A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Breezy.
  • Sunday A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 52. Windy.
  • Sunday Night A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 41. Windy.
  • Monday A chance of showers. Cloudy, with a high near 51. Chance of precipitation is 40%.
  • Monday Night A 40 percent chance of showers. Mostly cloudy, with a low around 36.
  • Tuesday A 30 percent chance of showers. Mostly cloudy, with a high near 52. Breezy.

 

Additional Forecasts and Information

Zone Area Forecast for Polk County, IA