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Grass Valley Lake, CA Weather Forecast

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Grass Valley Lake, CA Weather Forecast

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Grass Valley Lake CA weather - Clear - 80°F
Clear
80°F
Updated 8:32 pm
Feels Like 60°F
Humidity 47%
Wind WSW 8 mph
Barometer  29.86 in
Dew Point 59°F
Grass Valley Lake CA weather - Clear - 27°C
Clear
27°C
Updated 8:32 pm
Feels Like 16°C
Humidity 47%
Wind WSW 13 km/h
Barometer  101.1 kPa
Dew Point 15°C
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Grass Valley Lake Weather Forecast

TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY
Grass Valley Lake, CA Weather - Tonight Clear Grass Valley Lake, CA Weather - Thursday Chance Of Showers Grass Valley Lake, CA Weather - Thursday Night Mostly Clear Grass Valley Lake, CA Weather - Friday Mostly Sunny Grass Valley Lake, CA Weather - Friday Night Partly Cloudy Grass Valley Lake, CA Weather - Saturday Partly Cloudy Grass Valley Lake, CA Weather - Saturday Night Partly Cloudy Grass Valley Lake, CA Weather - Sunday Partly Cloudy Grass Valley Lake, CA Weather - Sunday Night Chance Of Showers Grass Valley Lake, CA Weather - Monday Chance Of Showers Grass Valley Lake, CA Weather - Monday Night Mostly Clear Grass Valley Lake, CA Weather - Tuesday Chance Of Showers
Clear Chance of Showers Mostly Clear Mostly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Chance of Showers Chance of Showers Mostly Clear Chance of Showers
Lo: 55°FLo: 13°C Lo: 50°FLo: 10°C Lo: 49°FLo: 9°C
POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 1237 PM PDT Wed Sep 23 2026 Grass Valley Lake, CA Weather - WeatherWorld.com

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Grass Valley Lake Forecast Discussion

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Issued: 447 PM PDT Wed Sep 23 2026

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...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

...UPDATED AVIATION DISCUSSION...

Temperatures at 1 PM were running 10 to 18 degrees warmer than yesterday in the Inland Empire, 5 to 7 degrees warmer than yesterday for other inland locations, and were within a few degrees of yesterday for the coast. Most locations will see an increase in temperatures each day through Saturday, with high temperatures 5 to ...