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

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Light Rain

69°F

21°C

Humidity 93%
Wind Speed NW 9 mph
Barometer 29.76 in (1007.4 mb)
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Last update 1 Aug 9:54 pm CDT
Extended Forecast for

Hillsboro MO

  • Tonight

    Tonight: A chance of drizzle, mainly before 4am. Cloudy, with a low around 65. Northwest wind around 9 mph, with gusts as high as 21 mph.

    Low: 65 °F

    Chance
    Drizzle

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind around 8 mph, with gusts as high as 21 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. North wind around 6 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 83. Light north wind.

    High: 83 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
A chance of drizzle, mainly before 4am. Cloudy, with a low around 65. Northwest wind around 9 mph, with gusts as high as 21 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind around 8 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 63. North wind around 6 mph becoming calm in the evening.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 83. Light north wind.
Monday Night
Mostly clear, with a low around 63. Calm wind.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 89.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Thursday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 88.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro MO
 38.23°N 90.56°W (Elev. 801 ft)
Last Update:
9:01 pm CDT Aug 1, 2026
Forecast Valid:
10pm CDT Aug 1, 2026-6pm CDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation