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      Heat Advisory
      until 7:00 PM CDT
      Elev 254 ft, 36.628 °N 91.617 °W

      Alton, MO

      Koshkonong Station102°
      Updated: 3:35 PM CDT on September 8, 2026 (GMT -5)
      10 minutes ago
      100°
      60°
      102
      Feels Like 104
      Sunny
      N
      5
      Same 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 72°f
         4% Precip. / 0 in
        Clear skies. Low 72F. Winds light and variable.
        Tomorrow
        Thu 09/10
        High 99°f
         13% Precip. / 0 in
        Sunny, along with a few afternoon clouds. Very hot. High 99F. Winds SW at 5 to 10 mph.
        Tomorrow night
        Thu 09/10
        Low 74°f
         13% Precip. / 0 in
        A few clouds. Low 74F. Winds light and variable.
        Hourly Forecast
        Now
        99°
        4PM
        99°
        5PM
        98°
        6PM
        97°
        7PM
        91°
        7:23PM
        Sunset
        8PM
        86°
        9PM
        82°
        10PM
        80°
        11PM
        78°
        12AM
        77°
        1AM
        76°
        2AM
        75°
        3AM
        74°
        4AM
        74°
        5AM
        73°
        6AM
        73°
        6:43AM
        Sunrise
        7AM
        73°
        8AM
        77°
        9AM
        83°
        10AM
        88°
        11AM
        92°
        12PM
        95°
        1PM
        97°
        2PM
        97°
        3PM
        97°
        Precipitation
        5%
        Pollen
        Ragweed Pollen
        Very High
        Air Quality
        54
        Moderate
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 30 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point61°F
        5. Humidity 28%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KMNF Station History
        Almanac for September 8, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 100°F 84°F 99°F 1998
        4. Low 60°F 59°F 42°F 2011
        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 99°F 83°F 100°F
        4. Low 60°F 58°F 44°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:42 AM 7:23 PM
        3. Civil Twilight 6:16 AM 7:49 PM
        4. Nautical Twilight 5:45 AM 8:20PM
        5. Astronomical Twilight 5:13 AM 8:51 PM
        1. Length of Visible Light 13h 33m
        2. Length of Day 12h 40m
        3. Tomorrow will be 2 minutes 17 seconds shorter
        1. Moon 3:44 AM 6:06 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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