Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

71°F

22°C

Humidity 79%
Wind Speed NW 7 mph
Barometer 29.97 in (1014.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 27 Aug 1:54 am CDT
Extended Forecast for

Old Monroe MO

  • Overnight

    Overnight: Clear, with a low around 65. Calm wind.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming north around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. North wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 86. Calm wind.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 65. Calm wind.
Thursday
Sunny, with a high near 85. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 62. North wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind.
Friday Night
Mostly clear, with a low around 62. Calm wind.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 73.
Monday
Mostly sunny, with a high near 95.
Monday Night
Partly cloudy, with a low around 75.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Old Monroe MO
 38.94°N 90.76°W (Elev. 499 ft)
1:25 am CDT Aug 27, 2026
2am CDT Aug 27, 2026-6pm CDT Sep 2, 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