Log In
    Favorites
        Member Settings
      Freeze Warning
      until 9:00 AM PDT
      +1 more alert
      Elev 3600 ft, 41.313 °N 122.309 °W

      Mount Shasta, CA

      Downtown Mt Shasta Station59°
      Sun, Oct 18, 2026
      Sunday
      Mon 10/19
      High 73°f
      1% Precip. / 0 in
      Partly cloudy skies. High 73F. Winds light and variable.
      Sunday night
      Mon 10/19
      Low 40°f
      1% Precip. / 0 in
      Mainly clear early, then a few clouds later on. Low near 40F. Winds light and variable.
      Sunrise 7:24 AM
      Sunset 6:23 PM
      Moonrise 2:51 PM
      Moonset -
      First Quarter, 52% visible
      Hourly Forecast
      12AM
      47°
      1AM
      45°
      2AM
      44°
      3AM
      43°
      4AM
      42°
      5AM
      42°
      6AM
      41°
      7AM
      41°
      7:24AM
      Sunrise
      8AM
      43°
      9AM
      50°
      10AM
      58°
      11AM
      63°
      12PM
      66°
      1PM
      69°
      2PM
      71°
      3PM
      71°
      4PM
      71°
      5PM
      69°
      6PM
      66°
      6:23PM
      Sunset
      7PM
      61°
      8PM
      56°
      9PM
      53°
      10PM
      50°
      11PM
      48°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Partly Cloudy
      		 47°F 47°F 1% 0in 34% 36°F 66% 2 mph NNW 30.1in
      1:00 am
      Partly Cloudy
      		 45°F 45°F 1% 0in 33% 36°F 70% 2 mph NNW 30.1in
      2:00 am
      Partly Cloudy
      		 44°F 44°F 1% 0in 32% 36°F 73% 2 mph NNW 30.1in
      3:00 am
      Partly Cloudy
      		 43°F 43°F 1% 0in 33% 36°F 75% 1 mph NNW 30.1in
      4:00 am
      Partly Cloudy
      		 42°F 42°F 2% 0in 34% 36°F 77% 1 mph N 30.1in
      5:00 am
      Partly Cloudy
      		 42°F 42°F 2% 0in 35% 36°F 80% 1 mph NNW 30.1in
      6:00 am
      Partly Cloudy
      		 41°F 41°F 1% 0in 35% 36°F 81% 1 mph NNW 30.1in
      7:00 am
      Partly Cloudy
      		 41°F 41°F 1% 0in 35% 36°F 82% 1 mph NNW 30.11in
      8:00 am
      Partly Cloudy
      		 43°F 43°F 0% 0in 32% 37°F 79% 0 mph NNW 30.11in
      9:00 am
      Mostly Sunny
      		 50°F 50°F 0% 0in 24% 39°F 67% 0 mph NNE 30.1in
      10:00 am
      Sunny
      		 58°F 58°F 0% 0in 14% 40°F 52% 1 mph NNE 30.09in
      11:00 am
      Sunny
      		 63°F 63°F 0% 0in 9% 38°F 40% 1 mph NE 30.08in
      12:00 pm
      Sunny
      		 66°F 66°F 0% 0in 10% 38°F 35% 1 mph SE 30.07in
      1:00 pm
      Sunny
      		 69°F 69°F 0% 0in 11% 37°F 31% 2 mph SSE 30.05in
      2:00 pm
      Sunny
      		 71°F 71°F 0% 0in 11% 35°F 27% 2 mph S 30.03in
      3:00 pm
      Sunny
      		 71°F 71°F 0% 0in 11% 35°F 26% 2 mph S 30.01in
      4:00 pm
      Sunny
      		 71°F 71°F 0% 0in 9% 34°F 26% 2 mph SSE 29.99in
      5:00 pm
      Sunny
      		 69°F 69°F 0% 0in 9% 34°F 27% 2 mph S 29.99in
      6:00 pm
      Sunny
      		 66°F 66°F 0% 0in 9% 35°F 31% 1 mph W 30in
      7:00 pm
      Clear
      		 61°F 61°F 0% 0in 9% 36°F 39% 0 mph NW 30.02in
      8:00 pm
      Clear
      		 56°F 56°F 0% 0in 10% 36°F 47% 1 mph NNW 30.04in
      9:00 pm
      Clear
      		 53°F 53°F 0% 0in 10% 36°F 52% 1 mph NNW 30.06in
      10:00 pm
      Clear
      		 50°F 50°F 0% 0in 10% 35°F 55% 1 mph NNW 30.07in
      11:00 pm
      Clear
      		 48°F 48°F 1% 0in 11% 34°F 59% 1 mph NNW 30.08in
      Additional Conditions
      1. Pressure 29.68 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point22°F
      5. Humidity 26%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KSIY Station History
      Almanac for October 10, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 58°F 68°F 87°F 1991
      4. Low 36°F 39°F 27°F 2019
      5. Rain/Snow Depth
      6. Precipitation 0 in - in -
      7. Snow 0 in - in -
      Almanac for October 11, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 59°F 67°F 87°F
      4. Low 31°F 39°F 27°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:15 AM 6:35 PM
      3. Civil Twilight 6:48 AM 7:03 PM
      4. Nautical Twilight 6:16 AM 7:35PM
      5. Astronomical Twilight 5:44 AM 8:07 PM
      1. Length of Visible Light 12h 15m
      2. Length of Day 11h 20m
      3. Tomorrow will be 2 minutes 42 seconds shorter
      1. Moon 7:24 AM 6:21 PM
      2. New0% of the Moon is Illuminated
      Oct 10
      New Moon
      Oct 18
      Waxing Half First Qtr
      Oct 25
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
      Loading nearby stations…
      Our AppsAbout UsContactCareers
      PWS NetworkWunderMap
      Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
      Level Access
      The Weather Company The Weather Channel Weather Underground Storm Radar
      © The Weather Company, LLC 2026
      Glossary