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      Elev 510 ft, 38.793 °N 90.345 °W

      Florissant, MO

      Florissant Station86°
      Updated: 6:41 PM CDT on September 30, 2026 (GMT -5)
      54 seconds ago
      94°
      69°
      86
      Feels Like 87
      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 75°f
         1% Precip. / 0 in
        Cloudy. Low near 75F. Winds S at 10 to 15 mph.
        Tomorrow
        Thu 10/01
        High 86°f
         77% Precip. / 0.33 in
        Cloudy in the morning, then off and on rain showers during the afternoon hours. High 86F. Winds SW at 10 to 20 mph. Chance of rain 80%.
        Tomorrow night
        Thu 10/01
        Low 62°f
         95% Precip. / 1.19 in
        Periods of rain. Potential for heavy rainfall. Low 62F. Winds N at 10 to 15 mph. Chance of rain 100%. Rainfall possibly over one inch.
        Hourly Forecast
        Now
        86°
        6:45PM
        Sunset
        7PM
        85°
        8PM
        83°
        9PM
        82°
        10PM
        82°
        11PM
        81°
        12AM
        80°
        1AM
        79°
        2AM
        78°
        3AM
        77°
        4AM
        77°
        5AM
        77°
        6AM
        76°
        6:57AM
        Sunrise
        7AM
        76°
        8AM
        76°
        9AM
        78°
        10AM
        79°
        11AM
        83°
        12PM
        84°
        1PM
        84°
        2PM
        85°
        3PM
        83°
        4PM
        37%
        82°
        5PM
        56%
        81°
        6PM
        77%
        78°
        Precipitation
        77%
        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 Point61°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 94°F 76°F 93°F 1952
        4. Low 69°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 7:12 PM
        4. Nautical Twilight 5:59 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 30 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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