National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Overcast

70°F

21°C

Humidity 93%
Wind Speed N 13 G 17 mph
Barometer 29.71 in
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 2 Aug 3:55 am CDT
Extended Forecast for

Junction City IL

  • Overnight

    Overnight: Drizzle. Cloudy, with a low around 67. North wind around 11 mph, with gusts as high as 21 mph.

    Low: 67 °F

    Drizzle

  • Sunday

    Sunday: Drizzle likely, mainly before 7am. Mostly cloudy, with a high near 80. North wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 80 °F

    Drizzle
    Likely then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. North wind 5 to 8 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. Light north wind.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 64. Calm wind.

    Low: 64 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

Overnight
Drizzle. Cloudy, with a low around 67. North wind around 11 mph, with gusts as high as 21 mph.
Sunday
Drizzle likely, mainly before 7am. Mostly cloudy, with a high near 80. North wind 11 to 15 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 64. North wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 84. Light north wind.
Monday Night
Clear, with a low around 64. Calm wind.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 88.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Junction City IL
 38.56°N 89.13°W (Elev. 476 ft)
Last Update:
2:21 am CDT Aug 2, 2026
Forecast Valid:
4am CDT Aug 2, 2026-6pm CDT Aug 8, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation