National Weather Service United States Department of Commerce

A stalled frontal boundary and ample monsoonal moisture will lead to flash flood potential from the Great Basin to the Great Plains tonight and Tuesday

A stalled frontal boundary will set up along the southern and central Rockies for the next couple of days providing focus for showers and thunderstorms. In addition, ample monsoonal moisture will stream in across the southwest bringing enough moisture to introduce a flash flood threat from the Great Basin and Southwest eastward across the central and southern Rockies into the adjacent Plains.
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Current Conditions

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Jacksonville IL

7 Day Forecast

For More Weather Information:

Lincoln, IL Local Forecast Office

Today

Mostly Sunny

Mostly
Sunny

High: 78 °F

Tonight

Mostly Clear

Mostly
Clear

Low: 57 °F

Wednesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 81 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 59 °F

Thursday

Mostly Sunny

Mostly
Sunny

High: 81 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 61 °F

Friday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 81 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 62 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 82 °F

Detailed Forecast

  • Today Mostly sunny, with a high near 78. Northwest wind 3 to 8 mph.
  • Tonight Mostly clear, with a low around 57. Northwest wind around 6 mph becoming calm.
  • Wednesday A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. West northwest wind 3 to 6 mph.
  • Wednesday Night Partly cloudy, with a low around 59. Light and variable wind.
  • Thursday Mostly sunny, with a high near 81. Calm wind.
  • Thursday Night Partly cloudy, with a low around 61.
  • Friday A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
  • Friday Night Partly cloudy, with a low around 62.
  • Saturday Mostly sunny, with a high near 82.
  • Saturday Night Partly cloudy, with a low around 62.
  • Sunday Mostly sunny, with a high near 82.
  • Sunday Night Mostly clear, with a low around 62.
  • Monday Mostly sunny, with a high near 84.