What is today's weather forecast for Bethel Island, CA?

Today's forecast for Bethel Island shows a low of 40 degrees Fahrenheit. Patchy dense fog.

What is the 7-day weather forecast for Bethel Island, CA?

The 7-day forecast for Bethel Island shows highs from 49 to 63 degrees and lows from 40 to 54 degrees Fahrenheit. Expect precipitation on 6 days with chances of 20% or higher.

Will it rain in Bethel Island, CA this week?

Yes, rain is possible in Bethel Island this week. Precipitation chances: Tuesday (60% chance), Wednesday (60% chance), Thursday (50% chance), Friday (50% chance), Saturday (50% chance), Sunday (50% chance).

How accurate is the Bethel Island weather forecast?

WeatherForYou provides highly accurate Bethel Island forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Bethel Island, CA Weather Forecast and Current Conditions

WEATHER ALERTS - Dense Fog Advisory

Current Conditions From Nearby Local Station

Switch to Metric Units

40°F
Feels Like 40°F

Humidity 99% Dew Point 40°F Wind Calm Barometer 30.27 in.

Report from a personal weather station 1 mi. SE of central Bethel Island
at 9:09 PM Sun, Dec 14, 2025

Point Forecast at a Glance

SunDec 14

MonDec 15

TueDec 16

WedDec 17

60%

ThuDec 18

50%

FriDec 19

50%

SatDec 20

50%

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 49°F to 63°F. Unsettled weather expected with rain likely on at least 5 days.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 57°F and lows around 39°F.

This Date in Weather History

1988 - Blowing snow was reported in western Kansas, as snow and gusty winds plagued the Central Rockies and Central High Plains. Colorado Springs CO reported thirteen inches of snow. Low pressure in Wisconsin brought heavy snow to the Lake Superior snowbelt area, with 22 inches reported at Marquette MI.

Bethel Island, CA 7 Day Weather Forecast Details

Sunday Dec 14

Night: Patchy dense fog. Otherwise, mostly cloudy, with a low around 40. Calm wind.

Monday Dec 15

Day: Patchy dense fog before 10am. Otherwise, partly sunny, with a high near 49. Calm wind becoming northwest around 5 mph in the afternoon.

Night: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 46. West northwest wind around 6 mph becoming calm after midnight.

Tuesday Dec 16

Day: A 10 percent chance of rain after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 58. Calm wind becoming northwest around 5 mph in the afternoon.

Night: Rain likely, mainly after 4am. Cloudy, with a low around 54. West northwest wind 5 to 7 mph becoming south southwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Dec 17

Day: Rain likely, mainly before 10am. Mostly cloudy, with a high near 63. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 48.

Thursday Dec 18

Day: A slight chance of rain. Mostly cloudy, with a high near 60.

Night: A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 50.

Friday Dec 19

Day: Rain, mainly after 10am. Cloudy, with a high near 58.

Night: Rain. Cloudy, with a low around 53.

Saturday Dec 20

Day: A chance of rain. Mostly cloudy, with a high near 58.

Night: A chance of rain. Cloudy, with a low around 51.

Sunday Dec 21

Day: Rain likely. Cloudy, with a high near 56.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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