Upper Lake, California Weather
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Weather Forecast for Upper Lake, California : Lake County
Issued: 2:05 am PDT Oct 18, 2025 Latitude: 39.1646129 Longitude: -122.9105515 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Sunny on Today Mostly Clear on Tonight Sunny on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Patchy Fog on Thursday 20% chance of rain on Friday
High: 78°F Low: 48°F High: 77°F High: 80°F High: 78°F High: 73°F High: 72°F High: 66°F
Low: 46°F Low: 47°F Low: 47°F Low: 45°F Low: 45°F  
Sunny Mostly Clear Sunny Sunny Sunny Mostly Sunny Patchy Fog Rain
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Current Conditions at
UKIAH - (KUKI)
50°
Clear
as of 3:56 AM PDST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SANTA ROSA - (KSTS)
48°
Clear
as of 3:53 AM PDST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MARYSVILLE - (KMYV)
54°
Clear
as of 3:53 AM PDST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
OROVILLE - (KOVE)
55°
Clear
as of 3:53 AM PDST
Rel. Humidity: 87%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
3 MPH
290° West
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 78. Calm wind becoming south southeast around 6 mph in the afternoon.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 48. Calm wind.
Sunny on Sunday Sunday... Sunny, with a high near 77. Light north northwest wind becoming west northwest 5 to 10 mph in the afternoon.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 46. West northwest wind 5 to 9 mph becoming calm after midnight.
Sunny on Monday Monday... Sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 47. Light and variable wind.
Sunny on Tuesday Tuesday... Sunny, with a high near 78.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 47.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 73.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 45.
Patchy Fog on Thursday Thursday... Patchy fog. Otherwise, mostly sunny, with a high near 72.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 45.
20% chance of rain Friday Friday... A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 66.
Current Radar Image


Sun Almanac for Upper Lake, California
Sunrise: 07:25 AM
Sunset: 6:28 PM
Civil Sunrise:06:58 AM
Civil Sunset: 6:55 PM
Nautical Sunrise: 06:27 AM
Nautical Sunset: 7:26 PM
Astro Sunrise: 05:56 AM
Astro Sunset: 7:57 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.