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

Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

84°F

29°C

Humidity 77%
Wind Speed SW 3 mph
Barometer 30.02 in (1015.6 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 20 Aug 8:54 am CDT
Extended Forecast for

Hillsboro MO

Severe T-storm Watch until August 20, 03:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 20, 03:00pm

    NOW until
    3:00pm Tue

    Severe T-storm Watch

  • Today

    Today: Showers and thunderstorms likely, mainly before 3pm. Some storms could be severe, with large hail and damaging winds. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph. Chance of precipitation is 70%.

    Severe
    Thunderstorms

    High: 86 °F

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 72. Southwest wind around 6 mph becoming calm. Chance of precipitation is 20%.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    Low: 72 °F

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 91. Heat index values as high as 103. West wind 3 to 6 mph.

    Chance
    T-storms

    High: 91 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely, mainly after 2am. Increasing clouds, with a low around 68. West wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 68 °F

  • Thursday

    Thursday: Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Light and variable wind. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 83 °F

  • Thursday
    Night

    Thursday Night: Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 66 °F

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.

    Chance
    T-storms

    High: 82 °F

  • Friday
    Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 62.

    Chance
    T-storms

    Low: 62 °F

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 3pm. Some storms could be severe, with large hail and damaging winds. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph. Chance of precipitation is 70%.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 72. Southwest wind around 6 mph becoming calm. Chance of precipitation is 20%.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 91. Heat index values as high as 103. West wind 3 to 6 mph.
Wednesday Night
Showers and thunderstorms likely, mainly after 2am. Increasing clouds, with a low around 68. West wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Light and variable wind. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 62.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Saturday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 62.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Hillsboro MO
 38.23°N 90.56°W (Elev. 801 ft)
Last Update:
7:58 am CDT Aug 20, 2019
Forecast Valid:
9am CDT Aug 20, 2019-6pm CDT Aug 26, 2019
 
Forecast Discussion
 
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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