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      Elev 945 ft, 43.184 °N 89.207 °W

      Sun Prairie, WI

      Sun Prairie Station64°
      Updated: 10:41 AM CDT on September 30, 2026 (GMT -5)
      4 minutes ago
      69°
      59°
      64
      Feels Like 64
      Cloudy
      N
      7
      Lower temperature is expected today
      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
        Today
        Wed 09/30
        High 69°f
         16% Precip. / 0 in
        Cloudy skies. High 69F. Winds SSW at 10 to 15 mph.
        Tonight
        Wed 09/30
        Low 63°f
         100% Precip. / 1.11 in
        Cloudy with periods of rain. Low 63F. Winds SW at 5 to 10 mph. Chance of rain 100%. Rainfall may reach one inch.
        Tomorrow
        Thu 10/01
        High 66°f46°f
         97% Precip. / 0.7 in
        Rain early...then remaining cloudy with showers in the afternoon. High 66F. Winds N at 5 to 10 mph. Chance of rain 100%. Rainfall near a half an inch.
        Hourly Forecast
        Now
        63°
        11AM
        64°
        12PM
        66°
        1PM
        67°
        2PM
        68°
        3PM
        68°
        4PM
        68°
        5PM
        68°
        6PM
        67°
        6:39PM
        Sunset
        7PM
        66°
        8PM
        65°
        9PM
        42%
        65°
        10PM
        60%
        65°
        11PM
        63%
        65°
        12AM
        79%
        65°
        1AM
        88%
        65°
        2AM
        99%
        65°
        3AM
        99%
        65°
        4AM
        100%
        65°
        5AM
        100%
        65°
        6AM
        99%
        65°
        6:54AM
        Sunrise
        7AM
        98%
        64°
        8AM
        85%
        65°
        9AM
        94%
        65°
        10AM
        86%
        64°
        Precipitation
        100%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        52
        Moderate
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 29.84 in
        2. Visibility 5 miles
        3. Clouds Cloudy
        4. Dew Point62°F
        5. Humidity 98%
        6. Rainfall 0.83 in
        7. Snow Depth 0 in
         KMSN Station History
        Almanac for September 30, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 67°F 88°F 1971
        4. Low 59°F 45°F 28°F 1993
        5. Rain/Snow Depth
        6. Precipitation 1.11 in 2.9 in -
        7. Snow 0 in - in -
        Almanac for October 1, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 66°F 67°F 90°F
        4. Low 52°F 45°F 27°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:53 AM 6:39 PM
        3. Civil Twilight 6:24 AM 7:07 PM
        4. Nautical Twilight 5:51 AM 7:40PM
        5. Astronomical Twilight 5:18 AM 8:14 PM
        1. Length of Visible Light 12h 43m
        2. Length of Day 11h 46m
        3. Tomorrow will be 2 minutes 55 seconds shorter
        1. Moon 8:36 PM 11:47 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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