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      Elev 510 ft, 38.793 °N 90.345 °W

      Florissant, MO

      Florissant Station85°
      Updated: 6:40 PM CDT on September 30, 2026 (GMT -5)
      4 minutes ago
      93°
      68°
      85
      Feels Like 86
      Mostly Cloudy
      N
      6
      Lower temperature is expected tomorrow
      Wundermap
      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 09/30
        Low 74°f
         1% Precip. / 0 in
        Cloudy skies. Low 74F. Winds S at 10 to 15 mph.
        Tomorrow
        Thu 10/01
        High 86°f
         78% Precip. / 0.32 in
        Cloudy with rain developing later in the day. High 86F. Winds SW at 10 to 20 mph. Chance of rain 80%. Rainfall around a quarter of an inch.
        Tomorrow night
        Thu 10/01
        Low 61°f
         94% Precip. / 1.4 in
        Rain. Potential for heavy rainfall. Low 61F. Winds N at 10 to 15 mph. Chance of rain 90%. 1 to 2 inches of rain expected.
        Hourly Forecast
        Now
        85°
        6:45PM
        Sunset
        7PM
        85°
        8PM
        82°
        9PM
        81°
        10PM
        81°
        11PM
        80°
        12AM
        79°
        1AM
        78°
        2AM
        78°
        3AM
        77°
        4AM
        77°
        5AM
        76°
        6AM
        76°
        6:57AM
        Sunrise
        7AM
        75°
        8AM
        76°
        9AM
        77°
        10AM
        79°
        11AM
        82°
        12PM
        83°
        1PM
        84°
        2PM
        85°
        3PM
        84°
        4PM
        39%
        83°
        5PM
        74%
        81°
        6PM
        78%
        78°
        Precipitation
        78%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        55
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.82 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point60°F
        5. Humidity 43%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSTL Station History
        Almanac for September 30, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 93°F 76°F 93°F 1952
        4. Low 68°F 55°F 36°F 1949
        5. Rain/Snow Depth
        6. Precipitation 0 in 2.9 in -
        7. Snow 0 in - in -
        Almanac for October 1, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 86°F 75°F 94°F
        4. Low 67°F 55°F 36°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:56 AM 6:45 PM
        3. Civil Twilight 6:29 AM 7:11 PM
        4. Nautical Twilight 5:58 AM 7:42PM
        5. Astronomical Twilight 5:27 AM 8:13 PM
        1. Length of Visible Light 12h 42m
        2. Length of Day 11h 49m
        3. Tomorrow will be 2 minutes 29 seconds shorter
        1. Moon 8:58 PM 11:35 AM
        2. Waning Gibbous77% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
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