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      Heat Advisory
      until 8:00 PM CDT
      Elev 118 ft, 37.766 °N 89.335 °W

      Murphysboro, IL

      Southern Illinois Airport Station95°
      Updated: 3:38 PM CDT on September 8, 2026 (GMT -5)
      2 minutes ago
      97°
      58°
      95
      Feels Like 99
      Sunny
      N
      6
      Similar temperature is expected tomorrow
      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
        Wed 09/09
        Low 74°f
         5% Precip. / 0 in
        Clear skies. Low 74F. Winds S at 5 to 10 mph.
        Tomorrow
        Thu 09/10
        High 96°f
         24% Precip. / 0 in
        Except for a few afternoon clouds, mainly sunny. Very hot. High 96F. Winds SW at 10 to 15 mph.
        Tomorrow night
        Thu 09/10
        Low 72°f
         65% Precip. / 0.09 in
        Partly cloudy during the evening with thunderstorms becoming likely overnight. Storms may contain strong gusty winds. Low 72F. Winds light and variable. Chance of rain 70%.
        Hourly Forecast
        Now
        95°
        4PM
        95°
        5PM
        94°
        6PM
        93°
        7PM
        87°
        7:15PM
        Sunset
        8PM
        81°
        9PM
        79°
        10PM
        78°
        11PM
        77°
        12AM
        77°
        1AM
        77°
        2AM
        76°
        3AM
        76°
        4AM
        75°
        5AM
        75°
        6AM
        75°
        6:34AM
        Sunrise
        7AM
        75°
        8AM
        78°
        9AM
        82°
        10AM
        87°
        11AM
        91°
        12PM
        93°
        1PM
        95°
        2PM
        95°
        3PM
        95°
        Precipitation
        15%
        Pollen
        Ragweed Pollen
        Very High
        Air Quality
        40
        Good
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 30.02 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point64°F
        5. Humidity 36%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KMDH Station History
        Almanac for September 8, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 97°F 84°F 106°F 1939
        4. Low 58°F 59°F 39°F 1988
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.5 in -
        7. Snow 0 in 0 in -
        Almanac for September 9, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 96°F 83°F 105°F
        4. Low 58°F 59°F 39°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:33 AM 7:15 PM
        3. Civil Twilight 6:06 AM 7:42 PM
        4. Nautical Twilight 5:35 AM 8:13PM
        5. Astronomical Twilight 5:03 AM 8:45 PM
        1. Length of Visible Light 13h 35m
        2. Length of Day 12h 42m
        3. Tomorrow will be 2 minutes 22 seconds shorter
        1. Moon 3:33 AM 6:00 PM
        2. Waning Crescent9% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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