National Weather Service United States Department of Commerce

Heavy rain possible for parts of the northern Rockies & Plains; Severe storms for the Upper Midwest

An unseasonably strong storm system in the northwest U.S. will bring showers and thunderstorms, some heavy, to parts of the northern Rockies and northern Plains through Saturday. Isolated flash floods will be possible in these areas. Some of the storms could be severe in parts of the Dakotas into Minnesota, with large hail and damaging winds.
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Hazardous Weather Conditions

Current Conditions

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Knoxville TN

7 Day Forecast

For More Weather Information:

Morristown, TN Local Forecast Office

Tonight

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 71 °F

Saturday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 91 °F

Saturday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 72 °F

Sunday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 91 °F

Sunday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 70 °F

Monday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 89 °F

Monday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 68 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 89 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 66 °F

Detailed Forecast

  • Tonight A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 71. Calm wind.
  • Saturday A 40 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming west around 5 mph in the afternoon.
  • Saturday Night A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm.
  • Sunday A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming east around 5 mph in the afternoon.
  • Sunday Night A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 70. East wind 5 to 10 mph.
  • Monday A 20 percent chance of showers and thunderstorms after 8am. Partly sunny, with a high near 89.
  • Monday Night A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 68.
  • Tuesday Mostly sunny, with a high near 89.
  • Tuesday Night Partly cloudy, with a low around 66.
  • Wednesday Mostly sunny, with a high near 89.
  • Wednesday Night Partly cloudy, with a low around 66.
  • Thursday A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
  • Thursday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
  • Friday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.