My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Elev 4923 ft, 39.816 °N 120.471 °W

      Portola, CA

      Station
      Updated: 3:30 PM PDT on August 23, 2026 (GMT -7)
      7 minutes ago
      87°
      46°
      84
      Feels Like 82
      Sunny
      N
      13
      Gusts 23 mph
      Similar temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Mon 08/24
      Low 58°f
      2% Precip. / 0 in
      Partly cloudy skies early will give way to cloudy skies late. Low 58F. Winds WSW at 10 to 15 mph, becoming ESE and decreasing to less than 5 mph.
      Tomorrow
      Tue 08/25
      High 86°f
      4% Precip. / 0 in
      Partly cloudy skies. High 86F. Winds S at 10 to 20 mph.
      Tomorrow night
      Tue 08/25
      Low 56°f
      1% Precip. / 0 in
      Partly cloudy. Low 56F. Winds SSW at 5 to 10 mph.
      Hourly Forecast
      Now
      84°
      4PM
      84°
      5PM
      83°
      6PM
      81°
      7PM
      78°
      7:46PM
      Sunset
      8PM
      74°
      9PM
      71°
      10PM
      68°
      11PM
      66°
      12AM
      65°
      1AM
      63°
      2AM
      62°
      3AM
      61°
      4AM
      61°
      5AM
      60°
      6AM
      60°
      6:22AM
      Sunrise
      7AM
      59°
      8AM
      63°
      9AM
      69°
      10AM
      73°
      11AM
      78°
      12PM
      81°
      1PM
      83°
      2PM
      85°
      3PM
      85°
      Precipitation
      4%
      Pollen
      Grass Pollen
      Moderate
      Air Quality
      66
      Moderate
      UV Index
      5
      Moderate
      Additional Conditions
      1. Pressure 29.85 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point43°F
      5. Humidity 24%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KRTS Station History
      Almanac for August 23, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 87°F 84°F 95°F 2025
      4. Low 46°F 41°F 20°F 1921
      5. Rain/Snow Depth
      6. Precipitation 0 in 3.9 in -
      7. Snow 0 in 0 in -
      Almanac for August 24, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 86°F 84°F 95°F
      4. Low 46°F 41°F 24°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:21 AM 7:46 PM
      3. Civil Twilight 5:53 AM 8:14 PM
      4. Nautical Twilight 5:19 AM 8:48PM
      5. Astronomical Twilight 4:43 AM 9:24 PM
      1. Length of Visible Light 14h 21m
      2. Length of Day 13h 24m
      3. Tomorrow will be 2 minutes 25 seconds shorter
      1. Moon 5:32 PM 1:37 AM
      2. Waxing Gibbous83% of the Moon is Illuminated
      Aug 27
      Full Moon
      Sep 4
      Waning Half Last Qtr
      Sep 10
      New Moon
      Sep 18
      Waxing Half First Qtr
      Precipitation
      Loading…
      Health
      Loading…
      Weather Alerts
      Loading…
      Our AppsAbout UsContactCareersWeather Data APIs
      PWS NetworkWundermapFeedback & Support
      Terms of UsePrivacy PolicyCookie NoticeAccessibility StatementAdChoicesData Vendors
      essentialaccessibility.com
      We recognize our responsibility to use data and technology for good. We may use or share your data with our data vendors. Take control of your data.
      Review All Privacy and Ad Settings
      Choose how my information is shared
      Data Rights
      The Weather Company The Weather Channel Weather Underground Storm Radar
      © The Weather Company, LLC 2026
      Glossary