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Current weather in Graton is clear sky.

Where can I find the hourly weather forecast for Graton?

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

Is the weather forecast for Graton updated regularly?

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

Now · 11:54 AM

Graton Weather & Hourly Forecast

United States · California · 95472

70°F

Sunny

Feels like: 66°F

💧 Humidity 59% 🌡 Pressure 29.91 inHg 💨 Wind 8 mph 👁 Visibility 8.4 mi ☁ Clouds 7% ☀️ UV index 3.9 · Moderate 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Graton

Today

12:00 PM

Sunny

70° 💧 None 💨 8 mph H 59%29.91 inHg

3:00 PM

Sunny

69° 💧 None 💨 14 mph H 59%29.91 inHg

6:00 PM

Mostly sunny

63° 💧 None 💨 13 mph H 75%29.94 inHg

9:00 PM

Mostly clear night

58° 💧 0.000 in 💨 8 mph H 89%29.97 inHg

Tomorrow

12:00 AM

Partly cloudy night

58° 💧 0.001 in 💨 6 mph H 90%29.97 inHg

3:00 AM

Mostly cloudy night

58° 💧 0.003 in 💨 3 mph H 92%30.00 inHg

6:00 AM

Overcast night

58° 💧 0.005 in 💨 2 mph H 93%30.03 inHg

9:00 AM

Overcast

62° 💧 0.005 in 💨 2 mph H 82%30.09 inHg

12:00 PM

Partly cloudy

72° 💧 None 💨 4 mph H 51%30.12 inHg

3:00 PM

Sunny

70° 💧 None 💨 12 mph H 61%30.09 inHg

6:00 PM

Mostly sunny

65° 💧 None 💨 9 mph H 74%30.09 inHg

9:00 PM

Clear night

59° 💧 0.000 in 💨 4 mph H 91%30.12 inHg

Friday

12:00 AM

Clear night

56° 💧 None 💨 2 mph H 96%30.12 inHg

3:00 AM

Partly cloudy night

53° 💧 None 💨 1 mph H 99%30.09 inHg

6:00 AM

Partly cloudy night

54° 💧 None 💨 0 mph H 99%30.09 inHg

9:00 AM

Partly cloudy

60° 💧 None 💨 1 mph H 85%30.12 inHg

Today

12:00 PM

Sunny

70° 💧 None 💨 8 mph H 59%29.91 inHg

1:00 PM

Sunny

70° 💧 None 💨 10 mph H 58%29.91 inHg

2:00 PM

Sunny

70° 💧 None 💨 12 mph H 58%29.91 inHg

3:00 PM

Sunny

69° 💧 None 💨 14 mph H 59%29.91 inHg

4:00 PM

Sunny

67° 💧 None 💨 15 mph H 63%29.91 inHg

5:00 PM

Mostly sunny

65° 💧 None 💨 15 mph H 69%29.91 inHg

6:00 PM

Mostly sunny

63° 💧 None 💨 13 mph H 75%29.94 inHg

7:00 PM

Sunny

60° 💧 None 💨 10 mph H 83%29.94 inHg

8:00 PM

Mostly clear night

58° 💧 None 💨 8 mph H 89%29.94 inHg

9:00 PM

Mostly clear night

58° 💧 None 💨 8 mph H 89%29.97 inHg

10:00 PM

Partly cloudy night

58° 💧 None 💨 8 mph H 89%29.97 inHg

11:00 PM

Partly cloudy night

58° 💧 0.000 in 💨 7 mph H 89%29.97 inHg

Tomorrow

12:00 AM

Partly cloudy night

58° 💧 0.000 in 💨 6 mph H 90%29.97 inHg

1:00 AM

Mostly cloudy night

58° 💧 0.000 in 💨 6 mph H 91%30.00 inHg

2:00 AM

Mostly cloudy night

58° 💧 0.001 in 💨 4 mph H 92%30.00 inHg

3:00 AM

Mostly cloudy night

58° 💧 0.001 in 💨 3 mph H 92%30.00 inHg

4:00 AM

Mostly cloudy night

59° 💧 0.001 in 💨 2 mph H 90%30.03 inHg

5:00 AM

Overcast night

59° 💧 0.001 in 💨 3 mph H 92%30.03 inHg

6:00 AM

Overcast night

58° 💧 0.001 in 💨 2 mph H 93%30.03 inHg

7:00 AM

Overcast

58° 💧 0.001 in 💨 2 mph H 95%30.06 inHg

8:00 AM

Overcast

60° 💧 0.002 in 💨 3 mph H 89%30.09 inHg

9:00 AM

Overcast

62° 💧 0.003 in 💨 2 mph H 82%30.09 inHg

10:00 AM

Overcast

65° 💧 0.002 in 💨 3 mph H 70%30.09 inHg

11:00 AM

Mostly cloudy

68° 💧 0.000 in 💨 4 mph H 59%30.12 inHg

12:00 PM

Partly cloudy

72° 💧 None 💨 4 mph H 51%30.12 inHg

1:00 PM

Partly cloudy

74° 💧 None 💨 5 mph H 47%30.09 inHg

2:00 PM

Sunny

72° 💧 None 💨 9 mph H 55%30.09 inHg

3:00 PM

Sunny

70° 💧 None 💨 12 mph H 61%30.09 inHg

4:00 PM

Mostly sunny

68° 💧 None 💨 12 mph H 64%30.09 inHg

5:00 PM

Mostly sunny

67° 💧 None 💨 10 mph H 68%30.09 inHg

6:00 PM

Mostly sunny

65° 💧 None 💨 9 mph H 74%30.09 inHg

7:00 PM

Sunny

62° 💧 None 💨 6 mph H 81%30.09 inHg

8:00 PM

Clear night

60° 💧 None 💨 6 mph H 88%30.09 inHg

9:00 PM

Clear night

59° 💧 0.000 in 💨 4 mph H 91%30.12 inHg

10:00 PM

Clear night

58° 💧 None 💨 3 mph H 93%30.12 inHg

11:00 PM

Clear night

57° 💧 None 💨 3 mph H 94%30.12 inHg

Friday

12:00 AM

Clear night

56° 💧 None 💨 2 mph H 96%30.12 inHg

1:00 AM

Clear night

55° 💧 None 💨 1 mph H 97%30.09 inHg

2:00 AM

Partly cloudy night

54° 💧 None 💨 1 mph H 99%30.09 inHg

3:00 AM

Partly cloudy night

53° 💧 None 💨 1 mph H 99%30.09 inHg

4:00 AM

Partly cloudy night

53° 💧 None 💨 2 mph H 100%30.09 inHg

5:00 AM

Partly cloudy night

53° 💧 None 💨 1 mph H 100%30.09 inHg

6:00 AM

Partly cloudy night

54° 💧 None 💨 0 mph H 99%30.09 inHg

7:00 AM

Fog

54° 💧 None 💨 0 mph H 99%30.12 inHg

8:00 AM

Mist

56° 💧 None 💨 1 mph H 93%30.12 inHg

9:00 AM

Partly cloudy

60° 💧 None 💨 1 mph H 85%30.12 inHg

10:00 AM

Mostly sunny

65° 💧 None 💨 2 mph H 72%30.12 inHg

11:00 AM

Sunny

70° 💧 None 💨 4 mph H 62%30.12 inHg

12:00 PM

Sunny

73° 💧 None 💨 6 mph H 55%30.12 inHg

1:00 PM

Sunny

75° 💧 None 💨 8 mph H 52%30.09 inHg

2:00 PM

Sunny

75° 💧 None 💨 9 mph H 52%30.06 inHg

3:00 PM

Sunny

74° 💧 None 💨 10 mph H 54%30.03 inHg

4:00 PM

Sunny

74° 💧 None 💨 10 mph H 54%30.03 inHg

5:00 PM

Sunny

73° 💧 None 💨 9 mph H 55%30.00 inHg

6:00 PM

Sunny

71° 💧 None 💨 8 mph H 58%29.97 inHg

7:00 PM

Sunny

67° 💧 None 💨 5 mph H 66%29.97 inHg

8:00 PM

Clear night

64° 💧 None 💨 4 mph H 72%29.97 inHg

9:00 PM

Clear night

63° 💧 None 💨 3 mph H 73%29.97 inHg

10:00 PM

Clear night

62° 💧 None 💨 3 mph H 72%29.97 inHg

11:00 PM

Clear night

60° 💧 None 💨 3 mph H 77%29.97 inHg

Saturday

12:00 AM

Clear night

58° 💧 None 💨 2 mph H 83%29.97 inHg

1:00 AM

Clear night

57° 💧 None 💨 1 mph H 88%29.97 inHg

2:00 AM

Clear night

56° 💧 None 💨 0 mph H 89%29.97 inHg

3:00 AM

Clear night

55° 💧 None 💨 0 mph H 91%29.97 inHg

4:00 AM

Partly cloudy night

54° 💧 None 💨 0 mph H 94%29.97 inHg

5:00 AM

Mostly cloudy night

53° 💧 None 💨 1 mph H 95%29.97 inHg

8:00 AM

Partly cloudy

56° 💧 None 💨 2 mph H 93%29.97 inHg

11:00 AM

Sunny

71° 💧 None 💨 3 mph H 56%29.97 inHg

2:00 PM

Sunny

85° 💧 None 💨 7 mph H 33%29.91 inHg

5:00 PM

Partly cloudy

82° 💧 None 💨 8 mph H 34%29.85 inHg

8:00 PM

Partly cloudy night

69° 💧 None 💨 4 mph H 60%29.88 inHg

11:00 PM

Mostly clear night

63° 💧 None 💨 4 mph H 72%29.88 inHg

Sunday

2:00 AM

Clear night

58° 💧 None 💨 3 mph H 87%29.88 inHg

5:00 AM

Mostly clear night

55° 💧 None 💨 2 mph H 90%29.88 inHg

8:00 AM

Overcast

56° 💧 None 💨 2 mph H 89%29.91 inHg

11:00 AM

Overcast

63° 💧 None 💨 1 mph H 72%29.94 inHg

2:00 PM

Overcast

74° 💧 None 💨 5 mph H 50%29.91 inHg

5:00 PM

Overcast

70° 💧 None 💨 9 mph H 57%29.88 inHg

8:00 PM

Partly cloudy night

61° 💧 None 💨 5 mph H 76%29.88 inHg

11:00 PM

Mostly clear night

57° 💧 None 💨 3 mph H 90%29.91 inHg

Monday

2:00 AM

Partly cloudy night

56° 💧 None 💨 3 mph H 92%29.88 inHg

5:00 AM

Overcast night

55° 💧 None 💨 1 mph H 97%29.88 inHg

8:00 AM

Overcast

55° 💧 None 💨 1 mph H 95%29.91 inHg

11:00 AM

Partly cloudy

63° 💧 None 💨 3 mph H 74%29.91 inHg

2:00 PM

Sunny

76° 💧 None 💨 6 mph H 46%29.85 inHg

5:00 PM

Sunny

71° 💧 None 💨 8 mph H 53%29.83 inHg

8:00 PM

Clear night

60° 💧 None 💨 7 mph H 82%29.85 inHg

11:00 PM

Mostly cloudy night

57° 💧 None 💨 5 mph H 91%29.88 inHg

Tuesday

5:00 AM

Mostly cloudy night

58° 💧 None 💨 5 mph H 88%29.85 inHg

11:00 AM

Partly cloudy

56° 💧 None 💨 2 mph H 92%29.85 inHg

5:00 PM

Mostly sunny

67° 💧 None 💨 4 mph H 65%29.88 inHg

11:00 PM

Clear night

76° 💧 None 💨 7 mph H 47%29.80 inHg

Wednesday

5:00 AM

Clear night

58° 💧 None 💨 4 mph H 87%29.83 inHg

11:00 AM

Mostly sunny

55° 💧 None 💨 1 mph H 94%29.85 inHg

5:00 PM

Mostly sunny

71° 💧 None 💨 3 mph H 55%29.91 inHg

11:00 PM

Mostly clear night

79° 💧 None 💨 7 mph H 38%29.85 inHg

Thursday

5:00 AM

Overcast night

60° 💧 None 💨 2 mph H 76%29.91 inHg

11:00 AM

Partly cloudy

56° 💧 None 💨 0 mph H 88%29.91 inHg

5:00 PM

Sunny

75° 💧 None 💨 3 mph H 46%29.94 inHg

11:00 PM

Clear night

81° 💧 None 💨 6 mph H 29%29.91 inHg

Friday

5:00 AM

Mostly cloudy night

59° 💧 None 💨 2 mph H 78%29.94 inHg

11:00 AM

Overcast

57° 💧 None 💨 1 mph H 75%29.91 inHg

5:00 PM

Mostly cloudy

73° 💧 None 💨 2 mph H 43%29.94 inHg

11:00 PM

Mostly cloudy night

87° 💧 None 💨 6 mph H 18%29.85 inHg

Saturday

5:00 AM

Mostly clear night

65° 💧 None 💨 2 mph H 57%29.85 inHg

11:00 AM

Mostly sunny

57° 💧 None 💨 3 mph H 85%29.85 inHg

5:00 PM

Sunny

69° 💧 None 💨 5 mph H 58%29.91 inHg

11:00 PM

Clear night

71° 💧 None 💨 9 mph H 54%29.88 inHg

Sunday

5:00 AM

Partly cloudy night

57° 💧 None 💨 3 mph H 92%29.97 inHg

11:00 AM

Partly cloudy

53° 💧 None 💨 2 mph H 100%29.91 inHg

5:00 PM

Mostly sunny

64° 💧 None 💨 2 mph H 65%29.94 inHg

11:00 PM

Mostly clear night

74° 💧 None 💨 8 mph H 46%29.83 inHg

Monday

5:00 AM

Clear night

59° 💧 None 💨 3 mph H 83%29.83 inHg

11:00 AM

Partly cloudy

53° 💧 None 💨 2 mph H 97%29.83 inHg

5:00 PM

Sunny

65° 💧 None 💨 2 mph H 55%29.85 inHg

11:00 PM

Clear night

75° 💧 None 💨 12 mph H 44%29.77 inHg

Tuesday

5:00 AM

Mostly clear night

60° 💧 None 💨 7 mph H 86%29.83 inHg

11:00 AM

Moderate rain

59° 💧 None 💨 6 mph H 96%29.80 inHg

5:00 PM

Mostly sunny

66° 💧 None 💨 7 mph H 55%29.91 inHg

11:00 PM

Clear night

70° 💧 None 💨 11 mph H 42%29.88 inHg

Wednesday

5:00 AM

Clear night

56° 💧 None 💨 5 mph H 72%29.91 inHg

11:00 AM

Sunny

50° 💧 None 💨 1 mph H 87%29.88 inHg

5:00 PM

Overcast

65° 💧 None 💨 1 mph H 50%29.91 inHg

11:00 PM

Overcast night

68° 💧 None 💨 10 mph H 35%29.85 inHg

In Graton and, more broadly, across the state of California: Today will remain mostly sunny with just a few clouds drifting by. Temperatures will climb into the mid to upper 70s, reaching up to 82 degrees in the afternoon, providing warm and comfortable conditions. Winds will be coming from the northwest at moderate speeds, averaging around 10 to 13 mph, with gusts possibly reaching 24 mph. No rain is expected throughout the rest of the day, so outdoor plans should be enjoyable. As the day progresses, expect a gentle breeze adding to the pleasant weather. Overall, it’s a fine day with mild temperatures and plenty of sunshine, making for a good afternoon outdoors.

15-Day Weather Outlook for Graton

TomorrowTomorrow

Partly cloudy 74°/57° 💧 None 💨 12 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 75°/53° 💧 None 💨 10 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 85°/53° 💧 None 💨 8 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 74°/55° 💧 None 💨 9 mph

Monday, Sep 21Mon Sep 21

Overcast 76°/55° 💧 0.001 in 💨 8 mph

Tuesday, Sep 22Tue Sep 22

Mostly cloudy 76°/56° 💧 0.001 in 💨 7 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 79°/55° 💧 None 💨 7 mph

Thursday, Sep 24Thu Sep 24

Overcast 81°/56° 💧 None 💨 6 mph

Friday, Sep 25Fri Sep 25

Mostly cloudy 87°/57° 💧 None 💨 6 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 71°/57° 💧 None 💨 9 mph

Sunday, Sep 27Sun Sep 27

Partly cloudy 74°/53° 💧 None 💨 8 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 75°/53° 💧 None 💨 12 mph

Tuesday, Sep 29Tue Sep 29

Moderate rain 70°/59° 💧 0.077 in 💨 11 mph

Wednesday, Sep 30Wed Sep 30

Overcast 68°/50° 💧 None 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Graton

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Graton

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 12:00 PM

PM2.5 Fine particles Good 3,7µg/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 Good 14,2µg/m³

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

O₃ Ozone Fair 89,7µg/m³

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

NO₂ Nitrogen dioxide Good 0,4µg/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 Graton

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 5,8Moderate 🙂Fair

Tomorrow UV 6,2High 🙂Fair

Friday UV 6,5High 🙂Fair

Saturday UV 6,5High 🙂Fair

Sunday UV 6,0High 🙂Fair

Monday UV 7,0High —Unavailable

Tuesday UV 8,0Very high —Unavailable

Hourly UV index today

12:00 PMUV 5,2 1:00 PMUV 5,8 2:00 PMUV 5,4 3:00 PMUV 4,3 4:00 PMUV 2,8 5:00 PMUV 1,3 6:00 PMUV 0,4 7:00 PMUV 0,0

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

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.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Graton

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · GRATON, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

73/100Best-hour score

BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 8:47 PM–5:25 AM

☁ Cloud cover 34% Real hourly forecast for the best viewing hour.

☾ Moonlight 29% Waxing Crescent · Moon about 10° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 9° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min14%

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 Graton were last refreshed today at 11:54 AM. The current forecast period extends through 18/09/2026 at 9:00 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.