0

Hourly Weather Forecast - O'Fallon, IL

  • Temperature
    63°F
    Precipitation
    0%
    Wind
    9mph
    SW
    Arrow up

    Partly Cloudy

    Humidity
    84%
    Feels like
    63°F
    Dew Point
    58°F

  • Partly Cloudy

    Humidity
    85%
    Feels like
    63°F
    Dew Point
    58°F

  • Partly Cloudy

    Humidity
    86%
    Feels like
    62°F
    Dew Point
    58°F

  • Partly Cloudy

    Humidity
    86%
    Feels like
    62°F
    Dew Point
    57°F

  • Partly Cloudy

    Humidity
    86%
    Feels like
    61°F
    Dew Point
    57°F

  • Partly Cloudy

    Humidity
    87%
    Feels like
    61°F
    Dew Point
    57°F

  • Partly Cloudy

    Humidity
    88%
    Feels like
    61°F
    Dew Point
    57°F

  • Partly Cloudy

    Humidity
    86%
    Feels like
    61°F
    Dew Point
    57°F

  • Partly Cloudy

    Humidity
    83%
    Feels like
    63°F
    Dew Point
    58°F

  • Partly Cloudy

    Humidity
    77%
    Feels like
    65°F
    Dew Point
    58°F

Top Stories

Right Arrow
Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

Read More
NOAA, NCDC

White Christmas? What Are The Odds

Read More
Weekend Weather Outlook

Weekend Weather Outlook

Read More
Cold weather

During Extreme Cold: Watch for Frostbite!

Read More
Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Read More
Watch vs. Warning

Flash Flood Watch and Warning Defined

Read More
More NewsRight Arrow
loading ad...
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