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Upper Blue Lake, CA Weather Forecast

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Upper Blue Lake, CA Weather Forecast

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Upper Blue Lake CA weather - Clear - 49°F
Clear
49°F
Updated 2:48 am
Feels Like 35°F
Humidity 65%
Wind VRB 3 mph
Barometer  30.09 in
Dew Point 38°F
Upper Blue Lake CA weather - Clear - 9°C
Clear
9°C
Updated 2:48 am
Feels Like 2°C
Humidity 65%
Wind VRB 5 km/h
Barometer  101.9 kPa
Dew Point 3°C
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Upper Blue Lake Weather Forecast

TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY TUESDAY WEDNESDAY
Upper Blue Lake, CA Weather - Tonight Mostly Clear Upper Blue Lake, CA Weather - Thursday Mostly Sunny Upper Blue Lake, CA Weather - Thursday Night Clear Upper Blue Lake, CA Weather - Friday Sunny Upper Blue Lake, CA Weather - Friday Night Clear Upper Blue Lake, CA Weather - Saturday Sunny Upper Blue Lake, CA Weather - Saturday Night Mostly Clear Upper Blue Lake, CA Weather - Sunday Partly Cloudy Upper Blue Lake, CA Weather - Sunday Night Partly Cloudy Upper Blue Lake, CA Weather - Monday Mostly Clear Upper Blue Lake, CA Weather - Tuesday Mostly Clear Upper Blue Lake, CA Weather - Wednesday Mostly Clear
Mostly Clear Mostly Sunny Clear Sunny Clear Sunny Mostly Clear Partly Cloudy Partly Cloudy Mostly Clear Mostly Clear Mostly Clear
Lo: 43°FLo: 6°C Hi: 58°FHi: 14°C
 Lo: 41°FLo: 5°C Hi: 66°FHi: 19°C
 Lo: 48°FLo: 9°C Hi: 73°FHi: 23°C
 Lo: 51°FLo: 11°C Hi: 72°FHi: 22°C
Lo: 52°FLo: 11°C		 Hi: 72°FHi: 22°C
Lo: 52°FLo: 11°C		 Hi: 74°FHi: 23°C
Lo: 51°FLo: 11°C		 Hi: 74°FHi: 23°C
Lo: 51°FLo: 11°C		 Hi: 74°FHi: 23°C
Lo: 51°FLo: 11°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 PM PDT Wed Sep 16 2026 Upper Blue Lake, CA Weather - WeatherWorld.com

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Upper Blue Lake Forecast Discussion

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Issued: 1215 PM PDT Wed Sep 16 2026

Key Messages

  • Cooler weather, breezy onshore winds, and increased humidity through Thursday
  • Isolated thunderstorm chances through Thursday, mainly across Coast Range, Shasta County, and southern Cascades
  • Warming and drying conditions late week and over the weekend with near normal temperatures

Discussion

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Today-Thursday: Current GOES-West visible satellite imagery shows some cumulus clouds developing over the mountains mainly north of Interstate 80 so far on this Wednesday afternoon. The few low c...