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

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

69°F

21°C

Humidity 87%
Wind Speed N 14 G 25 mph
Barometer 29.76 in (1007.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 2 Aug 12:54 am CDT
Extended Forecast for

3 Miles WSW Rockbridge IL

  • Overnight

    Overnight: Showers likely before 2am, then a chance of drizzle, mainly between 2am and 4am.  Mostly cloudy, with a low around 64. North wind around 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 81. North wind around 14 mph, with gusts as high as 22 mph.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. Light northeast wind.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61. Calm wind.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Showers likely before 2am, then a chance of drizzle, mainly between 2am and 4am. Mostly cloudy, with a low around 64. North wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 81. North wind around 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 61. North wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 83. Light northeast wind.
Monday Night
Clear, with a low around 61. Calm wind.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 87.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Thursday
Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Rockbridge IL
 39.26°N 90.26°W (Elev. 515 ft)
1:26 am CDT Aug 2, 2026
1am CDT Aug 2, 2026-6pm CDT Aug 8, 2026
 
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Additional Resources

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