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      Elev 840 ft, 43.065 °N 89.395 °W

      Madison, WI

      Monona Bay Station63°
      Updated: 2:31 PM CDT on September 21, 2026 (GMT -5)
      3 minutes ago
      64°
      52°
      63
      Feels Like 63
      Cloudy
      N
      13
      Gusts 21 mph
      Similar 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
        Today
        Mon 09/21
        High 63°f
         32% Precip. / 0.03 in
        Cloudy with a few showers. High 63F. Winds ENE at 10 to 15 mph. Chance of rain 30%.
        Tonight
        Mon 09/21
        Low 51°f
         34% Precip. / 0.03 in
        Cloudy skies with a few showers after midnight. Low 51F. Winds NE at 5 to 10 mph. Chance of rain 30%.
        Tomorrow
        Tue 09/22
        High 61°f48°f
         24% Precip. / 0 in
        Cloudy early with partial sunshine expected late. High 61F. Winds ENE at 10 to 15 mph.
        Hourly Forecast
        Now
        62°
        3PM
        61°
        4PM
        61°
        5PM
        32%
        60°
        6PM
        32%
        59°
        6:56PM
        Sunset
        7PM
        58°
        8PM
        57°
        9PM
        56°
        10PM
        54°
        11PM
        54°
        12AM
        32%
        53°
        1AM
        35%
        53°
        2AM
        53°
        3AM
        53°
        4AM
        32%
        53°
        5AM
        53°
        6AM
        31%
        52°
        6:45AM
        Sunrise
        7AM
        41%
        52°
        8AM
        52°
        9AM
        53°
        10AM
        54°
        11AM
        56°
        12PM
        58°
        1PM
        59°
        2PM
        59°
        Precipitation
        41%
        Rain possible around 5:30 PM
        Pollen
        None
        Air Quality
        15
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.18 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point51°F
        5. Humidity 67%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KMSN Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 64°F 72°F 90°F 2017
        4. Low 52°F 49°F 28°F 1991
        5. Rain/Snow Depth
        6. Precipitation 0.06 in - in -
        7. Snow 0 in - in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 61°F 72°F 90°F
        4. Low 52°F 48°F 23°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:43 AM 6:56 PM
        3. Civil Twilight 6:15 AM 7:24 PM
        4. Nautical Twilight 5:42 AM 7:58PM
        5. Astronomical Twilight 5:08 AM 8:32 PM
        1. Length of Visible Light 13h 9m
        2. Length of Day 12h 12m
        3. Tomorrow will be 2 minutes 55 seconds shorter
        1. Moon 4:44 PM 1:04 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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