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      Elev 216 ft, 39.473 °N 88.370 °W

      Mattoon, IL

      Mattoon Station69°
      Updated: 2:14 AM CDT on September 21, 2026 (GMT -5)
      8 minutes ago
      90°
      68°
      69
      Feels Like 69
      Thunderstorm
      N
      8
      Lower temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Tonight
        Sun 09/20
        Low 62°f
         100% Precip. / 0.47 in
        Thunderstorms. Low 62F. Winds NE at 5 to 10 mph. Chance of rain 100%.
        Tomorrow
        Mon 09/21
        High 68°f
         78% Precip. / 0.08 in
        Cloudy. Periods of rain early. High 68F. Winds NE at 10 to 15 mph. Chance of rain 80%.
        Tomorrow night
        Mon 09/21
        Low 58°f
         16% Precip. / 0 in
        Cloudy skies. Low 58F. Winds NE at 10 to 15 mph.
        Hourly Forecast
        Now
        68°
        3AM
        95%
        68°
        4AM
        100%
        67°
        5AM
        95%
        66°
        6AM
        82%
        65°
        6:40AM
        Sunrise
        7AM
        54%
        64°
        8AM
        73%
        63°
        9AM
        68%
        64°
        10AM
        34%
        65°
        11AM
        66°
        12PM
        67°
        1PM
        67°
        2PM
        68°
        3PM
        68°
        4PM
        68°
        5PM
        67°
        6PM
        66°
        6:52PM
        Sunset
        7PM
        65°
        8PM
        63°
        9PM
        62°
        10PM
        62°
        11PM
        61°
        12AM
        61°
        1AM
        61°
        2AM
        61°
        Precipitation
        100%
        Thunderstorms likely to continue
        Pollen
        Ragweed Pollen
        High
        Air Quality
        30
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.94 in
        2. Visibility 7 miles
        3. Clouds Cloudy
        4. Dew Point67°F
        5. Humidity 97%
        6. Rainfall 0.51 in
        7. Snow Depth 0 in
         KMTO Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 90°F 78°F 95°F 1955
        4. Low 68°F 55°F 38°F 1962
        5. Rain/Snow Depth
        6. Precipitation 0.47 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 70°F 77°F 91°F
        4. Low 68°F 54°F 34°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:40 AM 6:52 PM
        3. Civil Twilight 6:13 AM 7:18 PM
        4. Nautical Twilight 5:42 AM 7:50PM
        5. Astronomical Twilight 5:09 AM 8:22 PM
        1. Length of Visible Light 13h 5m
        2. Length of Day 12h 11m
        3. Tomorrow will be 2 minutes 34 seconds shorter
        1. Moon 4:28 PM 1:13 AM
        2. Waxing Gibbous77% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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