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Current weather in Jamestown is broken clouds.

Where can I find the hourly weather forecast for Jamestown?

This page shows hourly weather forecast for Jamestown, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Jamestown updated regularly?

Weather data for Jamestown is updated regularly with the latest available observations and forecasts.

Now · 7:29 AM

Jamestown Weather & Hourly Forecast

United States · California · 95327

67°F

Mostly cloudy

Feels like: 64°F

💧 Humidity 46% 🌡 Pressure 30.03 inHg 💨 Wind 5 mph 👁 Visibility 18.7 mi ☁ Clouds 84% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Jamestown

Today

8:00 AM

Mostly sunny

73° 💧 None 💨 4 mph H 41%30.06 inHg

11:00 AM

Mostly sunny

92° 💧 None 💨 5 mph H 20%30.06 inHg

2:00 PM

Mostly sunny

95° 💧 None 💨 7 mph H 19%30.00 inHg

5:00 PM

Sunny

94° 💧 None 💨 7 mph H 18%29.94 inHg

8:00 PM

Clear night

81° 💧 None 💨 4 mph H 27%29.97 inHg

11:00 PM

Clear night

72° 💧 None 💨 5 mph H 41%30.00 inHg

Tomorrow

2:00 AM

Clear night

69° 💧 None 💨 4 mph H 42%29.97 inHg

5:00 AM

Clear night

71° 💧 None 💨 4 mph H 39%29.97 inHg

8:00 AM

Partly cloudy

78° 💧 None 💨 4 mph H 35%29.97 inHg

11:00 AM

Mostly cloudy

92° 💧 None 💨 6 mph H 17%29.97 inHg

2:00 PM

Sunny

95° 💧 None 💨 9 mph H 16%29.91 inHg

5:00 PM

Mostly sunny

93° 💧 None 💨 9 mph H 16%29.88 inHg

8:00 PM

Mostly cloudy night

81° 💧 None 💨 5 mph H 23%29.88 inHg

11:00 PM

Mostly clear night

74° 💧 None 💨 4 mph H 31%29.91 inHg

Friday

2:00 AM

Clear night

69° 💧 None 💨 2 mph H 41%29.91 inHg

5:00 AM

Clear night

66° 💧 None 💨 2 mph H 46%29.88 inHg

Today

8:00 AM

Mostly sunny

73° 💧 None 💨 4 mph H 41%30.06 inHg

9:00 AM

Mostly sunny

84° 💧 None 💨 1 mph H 32%30.06 inHg

10:00 AM

Partly cloudy

89° 💧 None 💨 2 mph H 21%30.06 inHg

11:00 AM

Mostly sunny

92° 💧 None 💨 5 mph H 20%30.06 inHg

12:00 PM

Mostly sunny

94° 💧 None 💨 6 mph H 19%30.03 inHg

1:00 PM

Sunny

95° 💧 None 💨 8 mph H 19%30.00 inHg

2:00 PM

Mostly sunny

95° 💧 None 💨 7 mph H 19%30.00 inHg

3:00 PM

Mostly sunny

95° 💧 None 💨 8 mph H 18%29.97 inHg

4:00 PM

Mostly sunny

95° 💧 None 💨 8 mph H 18%29.97 inHg

5:00 PM

Sunny

94° 💧 None 💨 7 mph H 18%29.94 inHg

6:00 PM

Sunny

91° 💧 None 💨 7 mph H 19%29.94 inHg

7:00 PM

Sunny

84° 💧 None 💨 3 mph H 26%29.97 inHg

8:00 PM

Clear night

81° 💧 None 💨 4 mph H 27%29.97 inHg

9:00 PM

Clear night

78° 💧 None 💨 4 mph H 30%29.97 inHg

10:00 PM

Mostly clear night

74° 💧 None 💨 4 mph H 36%30.00 inHg

11:00 PM

Clear night

72° 💧 None 💨 5 mph H 41%30.00 inHg

Tomorrow

12:00 AM

Clear night

70° 💧 None 💨 5 mph H 44%29.97 inHg

1:00 AM

Clear night

69° 💧 None 💨 5 mph H 43%29.97 inHg

2:00 AM

Clear night

69° 💧 None 💨 4 mph H 42%29.97 inHg

3:00 AM

Clear night

70° 💧 None 💨 4 mph H 41%29.97 inHg

4:00 AM

Clear night

71° 💧 None 💨 4 mph H 39%29.97 inHg

5:00 AM

Clear night

71° 💧 None 💨 4 mph H 39%29.97 inHg

6:00 AM

Clear night

71° 💧 None 💨 4 mph H 38%29.97 inHg

7:00 AM

Sunny

72° 💧 None 💨 4 mph H 38%29.97 inHg

8:00 AM

Partly cloudy

78° 💧 None 💨 4 mph H 35%29.97 inHg

9:00 AM

Partly cloudy

86° 💧 None 💨 2 mph H 29%29.97 inHg

10:00 AM

Mostly cloudy

90° 💧 None 💨 5 mph H 20%29.97 inHg

11:00 AM

Mostly cloudy

92° 💧 None 💨 6 mph H 17%29.97 inHg

12:00 PM

Mostly cloudy

94° 💧 None 💨 8 mph H 15%29.94 inHg

1:00 PM

Mostly sunny

94° 💧 None 💨 9 mph H 15%29.94 inHg

2:00 PM

Sunny

95° 💧 None 💨 9 mph H 16%29.91 inHg

3:00 PM

Mostly sunny

95° 💧 None 💨 8 mph H 17%29.88 inHg

4:00 PM

Mostly sunny

94° 💧 None 💨 9 mph H 17%29.88 inHg

5:00 PM

Mostly sunny

93° 💧 None 💨 9 mph H 16%29.88 inHg

6:00 PM

Mostly cloudy

91° 💧 None 💨 8 mph H 16%29.85 inHg

7:00 PM

Overcast

86° 💧 None 💨 5 mph H 19%29.88 inHg

8:00 PM

Mostly cloudy night

81° 💧 None 💨 5 mph H 23%29.88 inHg

9:00 PM

Mostly clear night

78° 💧 None 💨 5 mph H 25%29.91 inHg

10:00 PM

Mostly clear night

76° 💧 None 💨 4 mph H 28%29.91 inHg

11:00 PM

Mostly clear night

74° 💧 None 💨 4 mph H 31%29.91 inHg

Friday

12:00 AM

Clear night

72° 💧 None 💨 3 mph H 36%29.91 inHg

1:00 AM

Clear night

70° 💧 None 💨 2 mph H 40%29.91 inHg

2:00 AM

Clear night

69° 💧 None 💨 2 mph H 41%29.91 inHg

3:00 AM

Clear night

68° 💧 None 💨 2 mph H 42%29.88 inHg

4:00 AM

Clear night

67° 💧 None 💨 2 mph H 44%29.88 inHg

5:00 AM

Clear night

66° 💧 None 💨 2 mph H 46%29.88 inHg

6:00 AM

Clear night

65° 💧 None 💨 2 mph H 51%29.88 inHg

7:00 AM

Sunny

64° 💧 None 💨 2 mph H 55%29.88 inHg

8:00 AM

Sunny

71° 💧 None 💨 3 mph H 49%29.91 inHg

9:00 AM

Sunny

81° 💧 None 💨 1 mph H 30%29.88 inHg

10:00 AM

Sunny

84° 💧 None 💨 4 mph H 23%29.88 inHg

11:00 AM

Sunny

86° 💧 None 💨 7 mph H 19%29.88 inHg

12:00 PM

Sunny

87° 💧 None 💨 7 mph H 16%29.88 inHg

1:00 PM

Sunny

88° 💧 None 💨 7 mph H 15%29.88 inHg

2:00 PM

Sunny

89° 💧 None 💨 7 mph H 14%29.85 inHg

3:00 PM

Sunny

89° 💧 None 💨 6 mph H 14%29.85 inHg

4:00 PM

Sunny

89° 💧 None 💨 6 mph H 14%29.83 inHg

5:00 PM

Sunny

88° 💧 None 💨 6 mph H 15%29.80 inHg

Saturday

2:00 AM

Clear night

63° 💧 None 💨 3 mph H 66%29.85 inHg

5:00 AM

Clear night

62° 💧 None 💨 3 mph H 63%29.85 inHg

8:00 AM

Sunny

66° 💧 None 💨 3 mph H 59%29.88 inHg

11:00 AM

Mostly sunny

77° 💧 None 💨 7 mph H 28%29.91 inHg

2:00 PM

Mostly sunny

81° 💧 None 💨 8 mph H 23%29.88 inHg

5:00 PM

Sunny

79° 💧 None 💨 9 mph H 30%29.85 inHg

8:00 PM

Clear night

68° 💧 None 💨 9 mph H 49%29.91 inHg

11:00 PM

Clear night

61° 💧 None 💨 6 mph H 69%29.94 inHg

Sunday

2:00 AM

Clear night

56° 💧 None 💨 5 mph H 88%29.97 inHg

5:00 AM

Clear night

53° 💧 None 💨 3 mph H 96%29.94 inHg

8:00 AM

Sunny

56° 💧 None 💨 2 mph H 85%29.97 inHg

11:00 AM

Sunny

70° 💧 None 💨 5 mph H 43%29.94 inHg

2:00 PM

Sunny

77° 💧 None 💨 8 mph H 32%29.88 inHg

5:00 PM

Sunny

78° 💧 None 💨 9 mph H 25%29.83 inHg

8:00 PM

Clear night

69° 💧 None 💨 6 mph H 28%29.83 inHg

11:00 PM

Partly cloudy night

64° 💧 None 💨 4 mph H 41%29.85 inHg

Monday

2:00 AM

Partly cloudy night

58° 💧 None 💨 2 mph H 69%29.83 inHg

5:00 AM

Clear night

54° 💧 None 💨 2 mph H 85%29.83 inHg

8:00 AM

Sunny

60° 💧 None 💨 1 mph H 69%29.85 inHg

11:00 AM

Sunny

75° 💧 None 💨 5 mph H 29%29.85 inHg

2:00 PM

Sunny

81° 💧 None 💨 6 mph H 22%29.83 inHg

5:00 PM

Sunny

82° 💧 None 💨 5 mph H 20%29.77 inHg

8:00 PM

Clear night

72° 💧 None 💨 3 mph H 32%29.80 inHg

11:00 PM

Clear night

63° 💧 None 💨 4 mph H 56%29.83 inHg

Tuesday

5:00 AM

Clear night

63° 💧 None 💨 4 mph H 54%29.85 inHg

11:00 AM

Sunny

56° 💧 None 💨 3 mph H 76%29.85 inHg

5:00 PM

Sunny

80° 💧 None 💨 5 mph H 23%29.91 inHg

11:00 PM

Clear night

82° 💧 None 💨 7 mph H 25%29.85 inHg

Wednesday

5:00 AM

Clear night

62° 💧 None 💨 5 mph H 67%29.94 inHg

11:00 AM

Sunny

56° 💧 None 💨 2 mph H 81%29.94 inHg

5:00 PM

Sunny

75° 💧 None 💨 5 mph H 35%30.00 inHg

11:00 PM

Clear night

79° 💧 None 💨 5 mph H 28%29.91 inHg

Thursday

5:00 AM

Clear night

62° 💧 None 💨 3 mph H 67%29.97 inHg

11:00 AM

Sunny

57° 💧 None 💨 1 mph H 82%29.94 inHg

5:00 PM

Sunny

75° 💧 None 💨 6 mph H 29%30.00 inHg

11:00 PM

Clear night

79° 💧 None 💨 6 mph H 24%29.94 inHg

Friday

5:00 AM

Clear night

62° 💧 None 💨 6 mph H 51%30.00 inHg

11:00 AM

Sunny

56° 💧 None 💨 4 mph H 76%30.00 inHg

5:00 PM

Sunny

74° 💧 None 💨 5 mph H 25%30.03 inHg

11:00 PM

Clear night

78° 💧 None 💨 6 mph H 22%29.97 inHg

Saturday

5:00 AM

Clear night

62° 💧 None 💨 4 mph H 46%29.97 inHg

11:00 AM

Sunny

54° 💧 None 💨 2 mph H 80%29.94 inHg

5:00 PM

Sunny

75° 💧 None 💨 4 mph H 26%29.94 inHg

11:00 PM

Clear night

79° 💧 None 💨 6 mph H 22%29.85 inHg

Sunday

5:00 AM

Clear night

62° 💧 None 💨 6 mph H 56%29.88 inHg

11:00 AM

Sunny

53° 💧 None 💨 3 mph H 83%29.85 inHg

5:00 PM

Sunny

73° 💧 None 💨 6 mph H 31%29.91 inHg

11:00 PM

Clear night

77° 💧 None 💨 7 mph H 28%29.85 inHg

Monday

5:00 AM

Clear night

61° 💧 None 💨 3 mph H 65%29.91 inHg

11:00 AM

Sunny

53° 💧 None 💨 2 mph H 89%29.94 inHg

5:00 PM

Sunny

76° 💧 None 💨 4 mph H 29%29.97 inHg

11:00 PM

Clear night

81° 💧 None 💨 11 mph H 25%29.91 inHg

Tuesday

5:00 AM

Clear night

66° 💧 None 💨 6 mph H 40%29.91 inHg

11:00 AM

Sunny

66° 💧 None 💨 8 mph H 23%29.88 inHg

5:00 PM

Sunny

77° 💧 None 💨 4 mph H 26%29.91 inHg

11:00 PM

Mostly clear night

87° 💧 None 💨 3 mph H 13%29.80 inHg

Wednesday

5:00 AM

Clear night

76° 💧 None 💨 15 mph H 20%29.85 inHg

11:00 AM

Sunny

68° 💧 None 💨 5 mph H 31%29.88 inHg

5:00 PM

Sunny

84° 💧 None 💨 5 mph H 16%29.91 inHg

11:00 PM

Clear night

87° 💧 None 💨 6 mph H 15%29.83 inHg

In Jamestown and, more broadly, across the state of California: This morning, the sky will feature a mix of sun and clouds, with temperatures climbing quickly into the upper 60s. Expect the heat to intensify as the day progresses, with afternoon highs reaching up to 102 degrees. Winds will be moderate from the northwest at around 10 mph, with gusts up to 17 mph, providing some relief from the heat. No precipitation is anticipated throughout the day, so dry conditions will persist. It will be a very hot day overall, so residents are advised to stay hydrated and take precautions against the heat, especially during peak afternoon hours.

15-Day Weather Outlook for Jamestown

TomorrowTomorrow

Mostly sunny 95°/69° 💧 None 💨 9 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 93°/64° 💧 None 💨 9 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 88°/62° 💧 None 💨 8 mph

Sunday, Sep 13Sun Sep 13

Sunny 79°/53° 💧 None 💨 9 mph

Monday, Sep 14Mon Sep 14

Partly cloudy 81°/54° 💧 None 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Sunny 82°/56° 💧 None 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Sunny 82°/56° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Sunny 79°/57° 💧 None 💨 5 mph

Friday, Sep 18Fri Sep 18

Sunny 79°/56° 💧 None 💨 6 mph

Saturday, Sep 19Sat Sep 19

Sunny 78°/54° 💧 None 💨 6 mph

Sunday, Sep 20Sun Sep 20

Sunny 79°/53° 💧 None 💨 6 mph

Monday, Sep 21Mon Sep 21

Sunny 77°/53° 💧 None 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Sunny 81°/66° 💧 None 💨 11 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 87°/68° 💧 None 💨 15 mph

Thursday, Sep 24Thu Sep 24

Sunny 87°/84° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Jamestown

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Jamestown

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 8:00 AM

PM2.5 Fine particles Fair 17,4µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Fair 22,8µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 68,3µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 7,0µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Jamestown

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 8,2Very high 🙂Fair

Tomorrow UV 8,5Very high 😐Moderate

Friday UV 8,2Very high 😐Moderate

Saturday UV 8,1Very high 😐Moderate

Sunday UV 7,0High 🙂Fair

Monday UV 7,0High —Unavailable

Tuesday UV 7,0High —Unavailable

Hourly UV index today

8:00 AMUV 0,5 9:00 AMUV 1,6 10:00 AMUV 3,7 11:00 AMUV 6,0 12:00 PMUV 7,7 1:00 PMUV 8,2 2:00 PMUV 7,8 3:00 PMUV 6,2 4:00 PMUV 3,9 5:00 PMUV 1,8 6:00 PMUV 0,5 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Jamestown

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · JAMESTOWN, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 8:49 PM–5:09 AM

☁ Cloud cover 1% Real hourly forecast for the best viewing hour.

☾ Moonlight 2% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 56° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min75%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Jamestown were last refreshed today at 7:29 AM. The current forecast period extends through 11/09/2026 at 5:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.