0

Hourly Weather Forecast - Decatur, IL

  • Temperature
    73°F
    Precipitation
    10%
    Wind
    3mph
    SSE
    Arrow up

    Mostly Clear

    Humidity
    89%
    Feels like
    73°F
    Dew Point
    69°F

  • Mostly Clear

    Humidity
    90%
    Feels like
    72°F
    Dew Point
    69°F

  • Hazy

    Humidity
    91%
    Feels like
    71°F
    Dew Point
    69°F

  • Partly Cloudy

    Humidity
    92%
    Feels like
    71°F
    Dew Point
    68°F

  • Partly Cloudy

    Humidity
    92%
    Feels like
    71°F
    Dew Point
    68°F

  • Partly Cloudy

    Humidity
    92%
    Feels like
    70°F
    Dew Point
    68°F

  • Partly Cloudy

    Humidity
    90%
    Feels like
    71°F
    Dew Point
    68°F

Top Stories

Right Arrow
Weekend Weather Outlook

Weekend Weather Outlook

Cooler air will bring relief to a large portion of the Eastern U.S. this weekend, as storms continue to pummel the Plains and Southeast.

Read More
Today's Air Quality Forecast

Poor Air Quality Across the Northern Plains, Great Lakes

Read More
A blanket of smog lays over Los Angeles in September 2011. Source: Temeku, Wikimedia Commons

What is the Air Quality Index?

Read More
Weekly Drought Map for July 31, 2025

Drought Worsens Nationwide Including Hard-Hit West

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

Lightning Safety When You're Stuck Outdoors

Read More
Story Image: The differences between the Heat Index and Wet Bulb Globe Temperature are outlined in this graphic. (NOAA, NWS)

Heat Index Vs Wet Bulb Globe Temperature

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