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      Elev 5344 ft, 43.159 °N 108.529 °W

      Riverton, WY

      Updated: 10:26 AM MDT on September 22, 2026 (GMT -6)
      just now
      73°
      46°
      59
      Feels Like 59
      Sunny
      N
      2
      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
        Wed 09/23
        High 73°f
        15% Precip. / 0 in
        A mix of clouds and sun during the morning will give way to cloudy skies this afternoon. A stray shower or thunderstorm is possible. High 73F. Winds NNE at less than 5 mph, becoming ESE and increasing to 10 to 15 mph.
        Tonight
        Wed 09/23
        Low 48°f
        20% Precip. / 0 in
        Some clouds. A stray shower or thunderstorm is possible. Low 48F. Winds WSW at 10 to 20 mph.
        Tomorrow
        Thu 09/24
        High 73°f47°f
        5% Precip. / 0 in
        Mainly sunny. High 73F. Winds NNW at 5 to 10 mph.
        Hourly Forecast
        Now
        60°
        11AM
        62°
        12PM
        65°
        1PM
        67°
        2PM
        69°
        3PM
        71°
        4PM
        68°
        5PM
        68°
        6PM
        68°
        7PM
        65°
        7:11PM
        Sunset
        8PM
        61°
        9PM
        60°
        10PM
        58°
        11PM
        57°
        12AM
        56°
        1AM
        55°
        2AM
        54°
        3AM
        53°
        4AM
        51°
        5AM
        50°
        6AM
        50°
        7AM
        49°
        7:02AM
        Sunrise
        8AM
        52°
        9AM
        56°
        10AM
        60°
        Additional Conditions
        1. Pressure 29.95 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point49°F
        5. Humidity 67%
        6. Rainfall 0 in
        7. Snow Depth 0 in
        KRIW Station History
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°F 71°F 86°F 1936
        4. Low 46°F 42°F 25°F 2000
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 23, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°F 71°F 84°F
        4. Low 46°F 42°F 20°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:01 AM 7:11 PM
        3. Civil Twilight 6:33 AM 7:39 PM
        4. Nautical Twilight 5:59 AM 8:12PM
        5. Astronomical Twilight 5:25 AM 8:46 PM
        1. Length of Visible Light 13h 6m
        2. Length of Day 12h 9m
        3. Tomorrow will be 2 minutes 55 seconds shorter
        1. Moon 5:29 PM 2:30 AM
        2. Waxing Gibbous85% 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
        Nearby Weather Stations
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