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      Elev 4948 ft, 39.667 °N 120.427 °W

      Calpine, CA

      Calpine Station38°
      Updated: 1:44 AM PDT on September 17, 2026 (GMT -7)
      just now
      72°
      37°
      38
      Feels Like 38
      Clear
      N
      3
      Lower 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
        Tonight
        Thu 09/17
        Low 40°f
         2% Precip. / 0 in
        Generally clear skies. Low around 40F. Winds light and variable.
        Tomorrow
        Fri 09/18
        High 67°f
         2% Precip. / 0 in
        Partly cloudy skies. High 67F. Winds SW at 10 to 15 mph.
        Tomorrow night
        Fri 09/18
        Low 37°f
         2% Precip. / 0 in
        Clear skies. Low 37F. Winds SW at 5 to 10 mph.
        Hourly Forecast
        Now
        43°
        2AM
        43°
        3AM
        42°
        4AM
        41°
        5AM
        42°
        6AM
        41°
        6:45AM
        Sunrise
        7AM
        42°
        8AM
        46°
        9AM
        52°
        10AM
        57°
        11AM
        60°
        12PM
        62°
        1PM
        64°
        2PM
        65°
        3PM
        65°
        4PM
        65°
        5PM
        64°
        6PM
        62°
        7PM
        58°
        7:06PM
        Sunset
        8PM
        53°
        9PM
        51°
        10PM
        48°
        11PM
        47°
        12AM
        45°
        1AM
        44°
        Precipitation
        2%
        Pollen
        None
        Air Quality
        44
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.01 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point35°F
        5. Humidity 74%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KTRK Station History
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 79°F 94°F 1935
        4. Low 37°F 37°F 25°F 1971
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 78°F 91°F
        4. Low 37°F 37°F 18°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:44 AM 7:06 PM
        3. Civil Twilight 6:17 AM 7:33 PM
        4. Nautical Twilight 5:46 AM 8:05PM
        5. Astronomical Twilight 5:13 AM 8:37 PM
        1. Length of Visible Light 13h 15m
        2. Length of Day 12h 21m
        3. Tomorrow will be 2 minutes 34 seconds shorter
        1. Moon 1:45 PM 10:36 PM
        2. Waxing Crescent40% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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