National Weather Service United States Department of Commerce

Unsettled weather in store for eastern U.S. into weekend

A complex weather system moving across the eastern U.S. will bring a variety of hazardous weather to the region on Friday and into the weekend. Much colder weather is expected by Saturday, along with numerous showers and accumulating snow in the higher elevations of the Appalachians. Rain and snow will move into northern New England on Sunday.
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Current Conditions

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Johnston IA

7 Day Forecast

For More Weather Information:

Des Moines, IA Local Forecast Office

Tonight

Mostly Clear

Mostly
Clear

Low: 24 °F

Saturday

Sunny

Sunny

High: 47 °F

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 32 °F

Sunday

Windy

Windy

High: 57 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 43 °F

Monday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 63 °F

Monday
Night

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

Low: 43 °F

Tuesday

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

High: 54 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 37 °F

Detailed Forecast

  • Tonight Mostly clear, with a low around 24. North wind 5 to 7 mph becoming calm in the evening.
  • Saturday Sunny, with a high near 47. Light southeast wind becoming south southeast 9 to 14 mph in the morning. Winds could gust as high as 18 mph.
  • Saturday Night Partly cloudy, with a low around 32. South southeast wind 9 to 11 mph.
  • Sunday Mostly sunny, with a high near 57. Windy, with a south wind 13 to 21 mph, with gusts as high as 29 mph.
  • Sunday Night Partly cloudy, with a low around 43. South wind 11 to 13 mph.
  • Monday A 50 percent chance of rain. Mostly cloudy, with a high near 63. Breezy. New precipitation amounts between a tenth and quarter of an inch possible.
  • Monday Night Rain likely. Cloudy, with a low around 43. Chance of precipitation is 60%.
  • Tuesday A 20 percent chance of rain. Mostly sunny, with a high near 54.
  • Tuesday Night Partly cloudy, with a low around 37.
  • Wednesday Mostly sunny, with a high near 57.
  • Wednesday Night Mostly clear, with a low around 38.
  • Thursday Mostly sunny, with a high near 53.
  • Thursday Night Partly cloudy, with a low around 36.
  • Friday Mostly sunny, with a high near 52.