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Jamestown, California Weather Forecast
Jamestown, California Weather
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Weather Forecast for Jamestown, California : Tuolumne County
Issued: 1:21 am PST Dec 18, 2025 Latitude: 37.9532584 Longitude: -120.4226952 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Morning Fog on Overnight Morning Fog on Thursday 50% chance of rain on Friday 60% chance of rain on Saturday Thunderstorms on Sunday Rain on Monday Rain on Tuesday Rain on Wednesday
Low: 41°F High: 56°F High: 56°F High: 55°F High: 54°F High: 52°F High: 52°F High: 51°F
Low: 43°F Low: 50°F Low: 52°F Low: 50°F Low: 47°F Low: 46°F  
Morning Fog Morning Fog Rain Rain Thunderstorms Rain Rain Rain
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Current Conditions at
MODESTO - (KMOD)
52°
Cloudy
Fog
as of 1:03 AM PST
Rel. Humidity: 100%
Dew Point: 52°F
Visibility: 1/4 Miles
Pressure: 30.15 in.
Flight Rule: IFR
Wind Data
3 MPH
320° Northwest
Current Conditions at
STOCKTON - (KSCK)
52°
Cloudy
Haze
as of 12:55 AM PST
Rel. Humidity: 11%
Visibility: 4 Miles
Pressure: 30.15 in.
Flight Rule: IFR
Wind Data
7 MPH
280° West
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
MERCED - (KMCE)
46°
Cloudy
Mist
as of 12:53 AM PST
Rel. Humidity: 93%
Dew Point: 45°F
Visibility: 4 Miles
Pressure: 30.15 in.
Flight Rule: MVFR
Wind Data
7 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 1200ft
Current Conditions at
MATHER AFB - (KMHR)
54°
Cloudy
Mist
as of 12:55 AM PST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 5 Miles
Pressure: 30.13 in.
Flight Rule: IFR
Wind Data
6 MPH
310° Northwest
Cloud Level(s): Solid Overcast at 500ft
Morning Fog on Overnight Overnight... Widespread dense fog, mainly after 2am. Otherwise, mostly cloudy, with a low around 41. Calm wind.

Morning Fog on Thursday Thursday... Widespread dense fog, mainly before 9am. Otherwise, mostly sunny, with a high near 56. Calm wind.

Morning Fog on Thursday Night Thursday Night... Widespread dense fog, mainly after 1am. Otherwise, increasing clouds, with a low around 43. Calm wind.

50% chance of rain Friday Friday... A 50 percent chance of showers after 10am. Mostly cloudy, with a high near 56. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.

90% chance of rain Friday Night Friday Night... Showers. Low around 50. Light east wind. Chance of precipitation is 90%.

60% chance of rain Saturday Saturday... Showers likely. Cloudy, with a high near 55. Chance of precipitation is 60%.

90% chance of thunderstorms Saturday Night Saturday Night... Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 90%.

Thunderstorms on Sunday Sunday... Showers, with thunderstorms also possible after 4pm. Cloudy, with a high near 54.

Thunderstorms on Sunday Night Sunday Night... Showers and possibly a thunderstorm. Cloudy, with a low around 50.

Rain on Monday Monday... Showers. Cloudy, with a high near 52.

Thunderstorms on Monday Night Monday Night... Showers likely and possibly a thunderstorm. Cloudy, with a low around 47.

Rain on Tuesday Tuesday... Showers likely. Cloudy, with a high near 52.

Rain on Tuesday Night Tuesday Night... Showers. Cloudy, with a low around 46.

Rain on Wednesday Wednesday... Showers. Cloudy, with a high near 51.

Current Radar Image


Sun Almanac for Jamestown, California
Sunrise: 07:13 AM
Sunset: 4:45 PM
Civil Sunrise:06:43 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:47 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:19 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.