National Weather Service United States Department of Commerce

Arctic air to drop temperatures across the northern Plain and northern Rockies; will bring snow to the Intermountain West

An arctic front is forecast to plunge through the northern Plains and northern Rockies on Saturday bringing a drastic drop in temperatures across these areas with a burst of snow over much of the Intermountain Region. Arctic air will also filter into the Pacific Northwest bringing with it snow showers and subfreezing low temperatures.
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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

Areas Fog

Areas
Fog

Low: 1 °C

Saturday

Patchy Fog

Patchy
Fog

High: 13 °C

Saturday
Night

Patchy Fog

Patchy
Fog

Low: 0 °C

Sunday

Breezy

Breezy

High: 1 °CFalling Temperatures

Sunday
Night

Blustery

Blustery

Low: -11 °C

Monday

Mostly Sunny

Mostly
Sunny

High: -6 °C

Monday
Night

Mostly Clear

Mostly
Clear

Low: -12 °C

Tuesday

Breezy

Breezy

High: 2 °C

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: -5 °C

Detailed Forecast

  • Tonight Areas of fog after midnight. Otherwise, mostly cloudy, with a low around 1. South southwest wind around 14 km/h.
  • Saturday Patchy fog before 9am. Otherwise, mostly sunny, with a high near 13. Southwest wind 14 to 23 km/h, with gusts as high as 29 km/h.
  • Saturday Night Patchy fog before 9pm, then Patchy fog between midnight and 3am. Otherwise, partly cloudy, with a low around 0. South southwest wind 10 to 16 km/h becoming north northwest after midnight.
  • Sunday Mostly sunny, with a temperature falling to around -7 by 5pm. Wind chill values as low as -15. Breezy, with a north northwest wind 16 to 21 km/h increasing to 27 to 32 km/h in the morning. Winds could gust as high as 45 km/h.
  • Sunday Night Mostly cloudy, with a low around -11. Blustery, with a north northwest wind 23 to 26 km/h, with gusts as high as 37 km/h.
  • Monday Mostly sunny, with a high near -6.
  • Monday Night Mostly clear, with a low around -12.
  • Tuesday Mostly sunny, with a high near 2. Breezy.
  • Tuesday Night Partly cloudy, with a low around -5.
  • Wednesday Mostly sunny, with a high near 2.
  • Wednesday Night Mostly cloudy, with a low around -5.
  • Thursday Mostly cloudy, with a high near 3.
  • Thursday Night Mostly cloudy, with a low around -2.
  • Friday Partly sunny, with a high near 4.