0

Hourly Weather Forecast - O'Fallon, MO

  • Temperature
    81°F
    Precipitation
    10%
    Wind
    3mph
    S
    Arrow up

    Warm and Humid

    Humidity
    77%
    Feels like
    87°F
    Dew Point
    73°F

  • Clear

    Humidity
    78%
    Feels like
    85°F
    Dew Point
    73°F

  • Clear

    Humidity
    79%
    Feels like
    80°F
    Dew Point
    73°F

  • Clear

    Humidity
    81%
    Feels like
    79°F
    Dew Point
    73°F

  • Clear

    Humidity
    83%
    Feels like
    78°F
    Dew Point
    72°F

  • Clear

    Humidity
    83%
    Feels like
    78°F
    Dew Point
    73°F

  • Sunny

    Humidity
    80%
    Feels like
    79°F
    Dew Point
    73°F

  • Sunny

    Humidity
    75%
    Feels like
    86°F
    Dew Point
    73°F

  • Sunny

    Humidity
    68%
    Feels like
    91°F
    Dew Point
    73°F

  • Sunny

    Humidity
    62%
    Feels like
    94°F
    Dew Point
    73°F

Top Stories

Right Arrow
Today's Severe Weather Outlook

Severe Storms Take Aim at the Great Lakes, Western Plains

Severe thunderstorms are possible over the western Great Lakes and High Plains today.

Read More
Today's High Temperature Forecast

Scorching Heat Spreads Over the South

Read More
Today's Weather Outlook

Today's Weather Outlook

Read More
Weekly Drought Map for July 10, 2025

Flooding Rains For Some, Worsening Drought For Others

Read More
Fire at sea Lightning Storm (Shane Ocean via Shutterstock).

Lightning Safety When You're Stuck Outdoors

Read More
Trapped woman on a car roof during flash flooding in Toowoomba (Timothy Swinson via Wikimedia Commons)

Turn Around, Don't Drown - What Does It Mean?

Read More
More NewsRight Arrow
Today's National Outlook
Hurricane Tracker
Allergy Forecast
Cold & Flu
Snow & Ski Forecast
Fire Updates
Traffic Cameras
Weather Cameras
Traffic Cameras
Weather Cameras
Outdoor Sports Guide