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Thornton, CA Marine Weather Forecast

Station PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA

December 4, 2025 11:48 am PST
Location: 38.04N 121.887W
Wind Direction: E (100°)
Wind Speed: 6.0 knots
Wind Gust: 7.0 knots
Air Temperature: 46.8°F (8.2°C)


This Afternoon - 52°F
Dec 04, 2025
2 to 7 mph E
Partly Sunny
Partly sunny. High near 52, with temperatures falling to around 50 in the afternoon. East wind 2 to 7 mph.
Tonight - 43°F
Dec 04, 2025
2 mph NNE
Mostly Clear
Mostly clear. Low around 43, with temperatures rising to around 45 overnight. North northeast wind around 2 mph.
Friday - 57°F
Dec 05, 2025
3 mph NE
Mostly Sunny
Mostly sunny. High near 57, with temperatures falling to around 55 in the afternoon. Northeast wind around 3 mph.
Friday Night - 46°F
Dec 05, 2025
5 mph SSW
Partly Cloudy
Partly cloudy, with a low around 46. South southwest wind around 5 mph.
Saturday - 59°F
Dec 06, 2025
3 mph NW
Mostly Sunny
Mostly sunny, with a high near 59. Northwest wind around 3 mph.
Saturday Night - 48°F
Dec 06, 2025
3 mph WSW
Mostly Clear
Mostly clear, with a low around 48.
Sunday - 59°F
Dec 07, 2025
3 mph W
Patchy Fog then Partly Sunny
Patchy fog between 7am and 10am. Partly sunny, with a high near 59.
Sunday Night - 48°F
Dec 07, 2025
3 mph WNW
Partly Cloudy then Patchy Fog
Patchy fog after 1am. Partly cloudy, with a low around 48.
Monday - 60°F
Dec 08, 2025
3 mph N
Patchy Fog then Mostly Sunny
Patchy fog before 10am. Mostly sunny, with a high near 60.
Monday Night - 47°F
Dec 08, 2025
2 mph SW
Partly Cloudy
Partly cloudy, with a low around 47.
Tuesday - 58°F
Dec 09, 2025
3 mph NE
Patchy Fog then Partly Sunny
Patchy fog before 10am. Partly sunny, with a high near 58.
Tuesday Night - 48°F
Dec 09, 2025
2 mph S
Partly Cloudy then Patchy Fog
Patchy fog after 4am. Partly cloudy, with a low around 48.
Wednesday - 60°F
Dec 10, 2025
3 mph N
Patchy Fog then Partly Sunny
Patchy fog before 10am. Partly sunny, with a high near 60.
Wednesday Night - 48°F
Dec 10, 2025
2 mph WSW
Partly Cloudy then Patchy Fog
Patchy fog after 5am. Partly cloudy, with a low around 48.

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