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Joice Island, CA - Suisun Slough Marine Weather Forecast

This Afternoon - 58°F
Dec 22, 2025
5 mph SSW
Light Rain Likely
Rain likely. Cloudy, with a high near 58. South southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Tonight - 54°F
Dec 22, 2025
3 mph SSW
Light Rain Likely
Rain likely before midnight, then a chance of rain and patchy fog between midnight and 1am, then patchy fog and a slight chance of rain. Cloudy, with a low around 54. South southwest wind around 3 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Tuesday - 59°F
Dec 23, 2025
5 to 12 mph SE
Light Rain
Rain and areas of fog. Cloudy, with a high near 59. Southeast wind 5 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
Tuesday Night - 51°F
Dec 23, 2025
12 to 18 mph SSE
Rain
Rain. Cloudy, with a low around 51. South southeast wind 12 to 18 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday - 56°F
Dec 24, 2025
12 to 17 mph S
Light Rain then Showers And Thunderstorms
Rain before 4pm, then showers and thunderstorms. Cloudy, with a high near 56. South wind 12 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%.
Wednesday Night - 53°F
Dec 24, 2025
12 to 20 mph SSE
Showers And Thunderstorms
Showers and thunderstorms before 7pm, then rain between 7pm and 4am, then showers and thunderstorms. Cloudy, with a low around 53. Chance of precipitation is 100%.
Christmas Day - 54°F
Dec 25, 2025
16 to 24 mph S
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then rain between 1pm and 4pm, then showers and thunderstorms. Cloudy, with a high near 54.
Thursday Night - 47°F
Dec 25, 2025
10 to 16 mph SSW
Showers And Thunderstorms then Light Rain
Showers and thunderstorms before 10pm, then rain. Cloudy, with a low around 47.
Friday - 52°F
Dec 26, 2025
7 to 13 mph SSW
Light Rain
Rain. Mostly cloudy, with a high near 52.
Friday Night - 42°F
Dec 26, 2025
7 mph W
Chance Light Rain
A chance of rain before 4am. Mostly cloudy, with a low around 42.
Saturday - 50°F
Dec 27, 2025
8 mph NNW
Mostly Sunny
Mostly sunny, with a high near 50.
Saturday Night - 37°F
Dec 27, 2025
6 mph N
Mostly Clear
Mostly clear, with a low around 37.
Sunday - 49°F
Dec 28, 2025
7 mph NE
Sunny
Sunny, with a high near 49.
Sunday Night - 37°F
Dec 28, 2025
5 mph NE
Mostly Clear
Mostly clear, with a low around 37.

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