Weather WorldO'Brien, CA 7-Day Night Weather Forecast
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O'Brien, CA Weather Forecast
O'Brien, CA Weather Forecast Date: 101 PM PST Sat Nov 07 2026
The area/counties/county of: Shasta Lake Area & 1, including the city of Shasta Lake, Sims.or toggle through each period.
Today... Sunny. Highs 61 to 71. Light winds.
Tonight... Partly cloudy. Lows 40 to 50. Light winds.
Sunday... Mostly cloudy. Highs 60 to 70. Light winds.
Sunday Night... Mostly cloudy. Lows 40 to 50. Light winds.
Monday... Mostly cloudy in the morning then becoming partly cloudy. Highs 57 to 67. Light winds.
Monday Night... Mostly clear. Lows 40 to 50.
Tuesday... Mostly sunny. Warmer. Highs 64 to 74.
Tuesday Night... Mostly clear. Lows 42 to 52. Highs 63 to 73.
Wednesday... Mostly clear. Lows 42 to 52. Highs 63 to 73.
Thursday... Partly cloudy with a slight chance of rain. Highs 59 to 69. Lows 41 to 51.
Thursday Night... Partly cloudy with a slight chance of rain. Highs 59 to 69. Lows 41 to 51.
POP = Probability of Precipitation
O'Brien Radar Loop
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