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      Elev 945 ft, 43.184 °N 89.207 °W

      Sun Prairie, WI

      Wed, Sep 30, 2026
      Today
      Wed 09/30
      High 70°f
      16% Precip. / 0 in
      Generally cloudy. High near 70F. Winds SSW at 10 to 15 mph.
      Tonight
      Wed 09/30
      Low 63°f
      99% Precip. / 0.89 in
      Rain. Low 63F. Winds SW at 5 to 10 mph. Chance of rain 100%. Rainfall near an inch.
      Sunrise 6:53 AM
      Sunset 6:39 PM
      Moonrise 8:36 PM
      Moonset 11:47 AM
      Waning Gibbous, 77% visible
      Hourly Forecast
      Now
      62°
      10AM
      62°
      11AM
      64°
      12PM
      66°
      1PM
      68°
      2PM
      68°
      3PM
      69°
      4PM
      69°
      5PM
      68°
      6PM
      67°
      6:39PM
      Sunset
      7PM
      34%
      66°
      8PM
      38%
      65°
      9PM
      47%
      65°
      10PM
      61%
      65°
      11PM
      77%
      65°
      12AM
      85%
      65°
      1AM
      85%
      65°
      2AM
      89%
      65°
      3AM
      96%
      65°
      4AM
      95%
      65°
      5AM
      98%
      65°
      6AM
      99%
      64°
      6:54AM
      Sunrise
      7AM
      98%
      64°
      8AM
      95%
      64°
      9AM
      93%
      65°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      10:00 am
      Cloudy
      62°F 62°F 15% 0in 99% 62°F 99% 8 mph SSW 29.85in
      11:00 am
      Cloudy
      64°F 64°F 15% 0in 100% 63°F 95% 8 mph SSW 29.84in
      12:00 pm
      Cloudy
      66°F 66°F 15% 0in 99% 63°F 91% 9 mph SSW 29.83in
      1:00 pm
      Cloudy
      68°F 68°F 15% 0in 99% 64°F 87% 11 mph SSW 29.82in
      2:00 pm
      Cloudy
      68°F 68°F 15% 0in 99% 65°F 87% 10 mph SSW 29.81in
      3:00 pm
      Cloudy
      69°F 69°F 10% 0in 98% 65°F 88% 10 mph SSW 29.8in
      4:00 pm
      Cloudy
      69°F 69°F 5% 0in 98% 65°F 87% 9 mph SSW 29.8in
      5:00 pm
      Cloudy
      68°F 70°F 11% 0in 98% 65°F 88% 9 mph SSW 29.8in
      6:00 pm
      Cloudy
      67°F 69°F 15% 0in 97% 65°F 91% 8 mph SSW 29.81in
      7:00 pm
      Few Showers
      66°F 68°F 34% 0.01in 100% 65°F 94% 8 mph SSW 29.82in
      8:00 pm
      Showers
      65°F 65°F 38% 0.01in 98% 65°F 99% 7 mph SSW 29.83in
      9:00 pm
      Showers
      65°F 65°F 47% 0.01in 100% 64°F 99% 7 mph SSW 29.84in
      10:00 pm
      Light Rain
      65°F 67°F 61% 0.02in 100% 64°F 97% 6 mph SSW 29.84in
      11:00 pm
      Rain
      65°F 65°F 77% 0.04in 100% 65°F 100% 5 mph SW 29.83in
      Additional Conditions
      1. Pressure 29.85 in
      2. Visibility 1.5 miles
      3. Clouds Cloudy
      4. Dew Point62°F
      5. Humidity 100%
      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 70°F 67°F 88°F 1971
      4. Low 59°F 45°F 28°F 1993
      5. Rain/Snow Depth
      6. Precipitation 0.89 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
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary