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      Elev 256 ft, 38.502 °N 122.473 °W

      St. Helena, CA

      Mon, Oct 26, 2026
      Monday
      Tue 10/27
      High 79°f
      3% Precip. / 0 in
      Partly cloudy. High 79F. Winds light and variable.
      Monday night
      Tue 10/27
      Low 45°f
      3% Precip. / 0 in
      Partly cloudy. Low near 45F. Winds light and variable.
      Sunrise 7:30 AM
      Sunset 6:16 PM
      Moonrise 6:23 PM
      Moonset 8:14 AM
      Waning Gibbous, 98% visible
      Hourly Forecast
      12AM
      51°
      1AM
      50°
      2AM
      48°
      3AM
      48°
      4AM
      47°
      5AM
      46°
      6AM
      46°
      7AM
      46°
      7:29AM
      Sunrise
      8AM
      47°
      9AM
      53°
      10AM
      59°
      11AM
      65°
      12PM
      69°
      1PM
      73°
      2PM
      75°
      3PM
      77°
      4PM
      77°
      5PM
      75°
      6PM
      71°
      6:16PM
      Sunset
      7PM
      65°
      8PM
      60°
      9PM
      57°
      10PM
      55°
      11PM
      53°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Mostly Clear
      51°F 51°F 3% 0in 21% 43°F 73% 1 mph NW 30.06in
      1:00 am
      Mostly Clear
      50°F 50°F 3% 0in 29% 43°F 76% 1 mph N 30.06in
      2:00 am
      Partly Cloudy
      48°F 48°F 4% 0in 34% 42°F 79% 1 mph NNW 30.07in
      3:00 am
      Partly Cloudy
      48°F 48°F 4% 0in 38% 42°F 81% 1 mph N 30.07in
      4:00 am
      Partly Cloudy
      47°F 47°F 4% 0in 43% 42°F 83% 1 mph NW 30.07in
      5:00 am
      Partly Cloudy
      46°F 46°F 4% 0in 45% 42°F 84% 1 mph NNW 30.07in
      6:00 am
      Partly Cloudy
      46°F 46°F 4% 0in 45% 42°F 84% 1 mph N 30.08in
      7:00 am
      Partly Cloudy
      46°F 46°F 3% 0in 43% 41°F 85% 2 mph NNW 30.08in
      8:00 am
      Partly Cloudy
      47°F 47°F 3% 0in 42% 42°F 84% 1 mph NNW 30.09in
      9:00 am
      Partly Cloudy
      53°F 53°F 2% 0in 39% 44°F 70% 2 mph N 30.1in
      10:00 am
      Partly Cloudy
      59°F 59°F 1% 0in 37% 44°F 56% 2 mph N 30.1in
      11:00 am
      Partly Cloudy
      65°F 65°F 0% 0in 35% 43°F 46% 3 mph ENE 30.1in
      12:00 pm
      Partly Cloudy
      69°F 69°F 0% 0in 35% 43°F 38% 3 mph SE 30.09in
      1:00 pm
      Partly Cloudy
      73°F 73°F 0% 0in 34% 42°F 33% 4 mph SSE 30.07in
      2:00 pm
      Partly Cloudy
      75°F 75°F 0% 0in 33% 41°F 29% 4 mph S 30.06in
      3:00 pm
      Partly Cloudy
      77°F 77°F 0% 0in 33% 40°F 26% 5 mph S 30.04in
      4:00 pm
      Partly Cloudy
      77°F 77°F 0% 0in 31% 39°F 26% 5 mph SSW 30.03in
      5:00 pm
      Partly Cloudy
      75°F 75°F 0% 0in 31% 39°F 27% 5 mph SSW 30.02in
      6:00 pm
      Partly Cloudy
      71°F 71°F 0% 0in 40% 40°F 31% 4 mph S 30.03in
      7:00 pm
      Partly Cloudy
      65°F 65°F 0% 0in 45% 41°F 42% 3 mph SSE 30.04in
      8:00 pm
      Partly Cloudy
      60°F 60°F 0% 0in 48% 43°F 52% 2 mph SSE 30.05in
      9:00 pm
      Partly Cloudy
      57°F 57°F 1% 0in 47% 44°F 61% 2 mph SSE 30.05in
      10:00 pm
      Partly Cloudy
      55°F 55°F 2% 0in 46% 44°F 67% 1 mph SSE 30.06in
      11:00 pm
      Partly Cloudy
      53°F 53°F 2% 0in 46% 44°F 72% 1 mph NNW 30.06in
      Additional Conditions
      1. Pressure 29.84 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point40°F
      5. Humidity 32%
      6. Rainfall 0 in
      7. Snow Depth 0 in
      KSTS Station History
      Almanac for October 20, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 75°F 77°F 95°F 2022
      4. Low 45°F 49°F 27°F 1949
      5. Rain/Snow Depth
      6. Precipitation 0 in 3.8 in -
      7. Snow 0 in 0 in -
      Almanac for October 21, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 73°F 76°F 98°F
      4. Low 51°F 49°F 30°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:24 AM 6:24 PM
      3. Civil Twilight 6:57 AM 6:51 PM
      4. Nautical Twilight 6:26 AM 7:22PM
      5. Astronomical Twilight 5:55 AM 7:52 PM
      1. Length of Visible Light 11h 54m
      2. Length of Day 11h 0m
      3. Tomorrow will be 2 minutes 22 seconds shorter
      1. Moon 3:41 PM 1:30 AM
      2. Waxing Gibbous71% of the Moon is Illuminated
      Oct 25
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nov 8
      New Moon
      Nov 17
      Waxing Half First Qtr
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary