Weather WorldUnion Lake, CA 7-Day Night Weather Forecast
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Union Lake, CA Weather Forecast
Union Lake, CA Weather Forecast Date: 136 AM PDT Sat Oct 17 2026
The area/counties/county of: Northeastern Trinity, including the cities of: Carrville and Trinity Center.or toggle through each period.
Today... Mostly sunny. Highs 70 to 85. West wind around 5 mph shifting to the south in the afternoon.
Tonight... Mostly clear. Lows 41 to 51. West wind around 5 mph.
Sunday... Sunny. Highs 64 to 79. Southeast wind around 10 mph.
Sunday Night... Mostly clear. Lows 36 to 46. South wind around 10 mph.
Monday... Partly cloudy. Highs 51 to 66. South wind around 10 mph.
Monday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows 30 to 40.
Tuesday... Partly cloudy. Highs 53 to 68. Lows 32 to 42.
Tuesday Night... Partly cloudy. Highs 53 to 68. Lows 32 to 42.
Wednesday... Partly cloudy. Highs 59 to 74. Lows 33 to 43.
Wednesday Night... Partly cloudy. Highs 59 to 74. Lows 33 to 43.
Thursday... Partly cloudy. Highs 54 to 69. Lows 31 to 41.
Thursday Night... Partly cloudy. Highs 54 to 69. Lows 31 to 41.
POP = Probability of Precipitation
Union Lake Radar Loop
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