National Weather Service United States Department of Commerce

Flash flooding possible across parts of Great Basin and southern Plains

A very wet pattern will persist across the Great Basin and into the southern Plains on Tuesday. Heavy rainfall is expected from southeastern Wyoming across Colorado, northeastern New Mexico into the Texas Panhandle and western Oklahoma. Isolated rainfall rates of 1-2 inches per hour will bring a risk of flash flooding to these areas
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Hazardous Weather Conditions

Current Conditions

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Dekalb IL

7 Day Forecast

For More Weather Information:

Chicago, IL Local Forecast Office

This
Afternoon

Scattered Thunderstorms Chance for Measurable Precipitation 30%

Scattered
Thunderstorms

High: 77 °F

Tonight

Scattered Thunderstorms Chance for Measurable Precipitation 30%

Scattered
Thunderstorms

Low: 57 °F

Wednesday

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 77 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 57 °F

Thursday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 78 °F

Thursday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 62 °F

Friday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 78 °F

Friday
Night

Slight Chance Showers

Slight Chc
Showers

Low: 60 °F

Saturday

Chance Thunderstorms

Chance
Thunderstorms

High: 79 °F

Detailed Forecast

  • This Afternoon Scattered showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 77. Northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
  • Tonight Scattered showers and thunderstorms before 10pm, then isolated showers between 10pm and 3am. Partly cloudy, with a low around 57. West wind around 5 mph. Chance of precipitation is 30%.
  • Wednesday A 20 percent chance of showers after 7am. Mostly sunny, with a high near 77. Northwest wind 5 to 10 mph.
  • Wednesday Night Partly cloudy, with a low around 57. North northwest wind around 5 mph becoming calm in the evening.
  • Thursday A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. West wind around 5 mph.
  • Thursday Night A slight chance of showers before 10pm. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
  • Friday A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.
  • Friday Night A slight chance of showers. Partly cloudy, with a low around 60.
  • Saturday A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
  • Saturday Night Partly cloudy, with a low around 58.
  • Sunday Mostly sunny, with a high near 80.
  • Sunday Night Partly cloudy, with a low around 62.
  • Monday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80.