Jamestown, CA Weather Forecast

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Jamestown, CA Weather Forecast

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Jamestown CA weather  - Clear - 87°F
Clear
87°F
Updated 7:11 pm
Feels Like 71°F
Humidity 19%
Wind NW 5 mph
Barometer  29.67 in
Dew Point 40°F
Jamestown CA weather  - Clear - 31°C
Clear
31°C
Updated 7:11 pm
Feels Like 22°C
Humidity 19%
Wind NW 8 km/h
Barometer  100.5 kPa
Dew Point 4°C

Jamestown Weather Forecast

TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY MONDAY TUESDAY
Jamestown, CA Weather - Tonight Clear Jamestown, CA Weather - Wednesday Sunny Jamestown, CA Weather - Wednesday Night Clear Jamestown, CA Weather - Thursday Sunny Jamestown, CA Weather - Thursday Night Clear Jamestown, CA Weather - Friday Mostly Sunny Jamestown, CA Weather - Friday Night Partly Cloudy Jamestown, CA Weather - Saturday Mostly Clear Jamestown, CA Weather - Saturday Night Mostly Clear Jamestown, CA Weather - Sunday Clear Jamestown, CA Weather - Monday Clear Jamestown, CA Weather - Tuesday Clear
Clear Sunny Clear Sunny Clear Mostly Sunny Partly Cloudy Mostly Clear Mostly Clear Clear Clear Clear
Lo: 62°FLo: 17°C Hi: 89°FHi: 32°C
Lo: 64°FLo: 18°C Hi: 92°FHi: 33°C
Lo: 66°FLo: 19°C Hi: 93°FHi: 34°C
Lo: 68°FLo: 20°C Hi: 95°FHi: 35°C
Lo: 68°FLo: 20°C
Hi: 95°FHi: 35°C
Lo: 68°FLo: 20°C
Hi: 93°FHi: 34°C
Lo: 68°FLo: 20°C
Hi: 93°FHi: 34°C
Lo: 68°FLo: 20°C
Hi: 93°FHi: 34°C
Lo: 68°FLo: 20°C
POP = Probability of Precipitation.
Weather Outlook Updated: 201 PM PDT Tue Sep 29 2026 Jamestown, CA Weather - WeatherWorld.com

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Jamestown Forecast Discussion

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Issued: 1228 PM PDT Tue Sep 29 2026

Key Messages

  • Elevated fire weather conditions today-Thursday AM due to periods of breezy north to east winds and low humidities.
  • High temperatures, 5-15 degrees above normal, will lead to Moderate HeatRisk in the Delta, Valley, and foothills Thursday-Monday
  • Hottest temperatures expected Saturday & Sunday, but Valley/Delta highs will be in the mid to upper 90s Thursday- Monday

Discussion

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...Today-Thursday AM (9/29-10/01)...

Breezy north winds are already being observed through the northern Sacrame...