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Current weather in Sun Valley is few clouds.

Where can I find the hourly weather forecast for Sun Valley?

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

Is the weather forecast for Sun Valley updated regularly?

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

Now · 12:17 PM

Sun Valley Weather & Hourly Forecast

United States · Arizona · 86029

89°F

Mostly sunny

Feels like: 87°F

💧 Humidity 24% 🌡 Pressure 30.03 inHg 💨 Wind 2 mph 👁 Visibility 36.9 mi ☁ Clouds 29% ☀️ UV index 9.6 · Very high 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Sun Valley

Today

1:00 PM

Sunny

91° 💧 0.000 in 💨 4 mph H 21%30.00 inHg

4:00 PM

Sunny

94° 💧 None 💨 12 mph H 15%29.88 inHg

7:00 PM

Clear night

87° 💧 None 💨 10 mph H 15%29.91 inHg

10:00 PM

Clear night

79° 💧 None 💨 8 mph H 18%30.00 inHg

Tomorrow

1:00 AM

Mostly clear night

71° 💧 None 💨 2 mph H 37%30.03 inHg

4:00 AM

Partly cloudy night

65° 💧 None 💨 2 mph H 63%30.03 inHg

7:00 AM

Sunny

64° 💧 None 💨 6 mph H 60%30.06 inHg

10:00 AM

Sunny

82° 💧 None 💨 2 mph H 25%30.03 inHg

1:00 PM

Sunny

91° 💧 None 💨 5 mph H 9%29.91 inHg

4:00 PM

Sunny

93° 💧 None 💨 8 mph H 10%29.80 inHg

7:00 PM

Clear night

85° 💧 None 💨 5 mph H 11%29.80 inHg

10:00 PM

Clear night

78° 💧 None 💨 3 mph H 16%29.85 inHg

Friday

1:00 AM

Clear night

72° 💧 None 💨 4 mph H 46%29.91 inHg

4:00 AM

Partly cloudy night

68° 💧 None 💨 6 mph H 52%29.88 inHg

7:00 AM

Sunny

70° 💧 None 💨 9 mph H 52%29.94 inHg

10:00 AM

Sunny

84° 💧 0.002 in 💨 9 mph H 31%29.91 inHg

Today

1:00 PM

Sunny

91° 💧 None 💨 4 mph H 21%30.00 inHg

2:00 PM

Sunny

92° 💧 0.000 in 💨 8 mph H 18%29.94 inHg

3:00 PM

Sunny

93° 💧 None 💨 8 mph H 16%29.91 inHg

4:00 PM

Sunny

94° 💧 None 💨 12 mph H 15%29.88 inHg

5:00 PM

Mostly sunny

92° 💧 None 💨 14 mph H 15%29.88 inHg

6:00 PM

Sunny

91° 💧 None 💨 11 mph H 14%29.88 inHg

7:00 PM

Clear night

87° 💧 None 💨 10 mph H 15%29.91 inHg

8:00 PM

Clear night

84° 💧 None 💨 8 mph H 15%29.94 inHg

9:00 PM

Clear night

82° 💧 None 💨 7 mph H 15%29.97 inHg

10:00 PM

Clear night

79° 💧 None 💨 8 mph H 18%30.00 inHg

11:00 PM

Mostly clear night

76° 💧 None 💨 4 mph H 26%30.00 inHg

Tomorrow

12:00 AM

Mostly clear night

73° 💧 None 💨 3 mph H 31%29.97 inHg

1:00 AM

Mostly clear night

71° 💧 None 💨 2 mph H 37%30.03 inHg

2:00 AM

Clear night

68° 💧 None 💨 4 mph H 46%30.00 inHg

3:00 AM

Mostly clear night

67° 💧 None 💨 4 mph H 57%30.00 inHg

4:00 AM

Partly cloudy night

65° 💧 None 💨 2 mph H 63%30.03 inHg

5:00 AM

Mostly clear night

63° 💧 None 💨 3 mph H 67%30.03 inHg

6:00 AM

Sunny

62° 💧 None 💨 4 mph H 68%30.06 inHg

7:00 AM

Sunny

64° 💧 None 💨 6 mph H 60%30.06 inHg

8:00 AM

Sunny

70° 💧 None 💨 4 mph H 47%30.09 inHg

9:00 AM

Sunny

76° 💧 None 💨 3 mph H 37%30.06 inHg

10:00 AM

Sunny

82° 💧 None 💨 2 mph H 25%30.03 inHg

11:00 AM

Sunny

86° 💧 None 💨 2 mph H 16%30.00 inHg

12:00 PM

Sunny

89° 💧 None 💨 3 mph H 11%29.97 inHg

1:00 PM

Sunny

91° 💧 None 💨 5 mph H 9%29.91 inHg

2:00 PM

Sunny

92° 💧 None 💨 7 mph H 9%29.88 inHg

3:00 PM

Sunny

92° 💧 None 💨 8 mph H 9%29.83 inHg

4:00 PM

Sunny

93° 💧 None 💨 8 mph H 10%29.80 inHg

5:00 PM

Sunny

92° 💧 None 💨 11 mph H 10%29.80 inHg

6:00 PM

Sunny

90° 💧 None 💨 11 mph H 10%29.77 inHg

7:00 PM

Clear night

85° 💧 None 💨 5 mph H 11%29.80 inHg

8:00 PM

Clear night

82° 💧 None 💨 3 mph H 13%29.83 inHg

9:00 PM

Clear night

80° 💧 None 💨 3 mph H 16%29.85 inHg

10:00 PM

Clear night

78° 💧 None 💨 3 mph H 16%29.85 inHg

11:00 PM

Clear night

76° 💧 None 💨 5 mph H 21%29.88 inHg

Friday

12:00 AM

Clear night

73° 💧 None 💨 6 mph H 37%29.91 inHg

1:00 AM

Clear night

72° 💧 None 💨 4 mph H 46%29.91 inHg

2:00 AM

Clear night

70° 💧 None 💨 4 mph H 46%29.88 inHg

3:00 AM

Mostly clear night

69° 💧 None 💨 6 mph H 48%29.88 inHg

4:00 AM

Partly cloudy night

68° 💧 None 💨 6 mph H 52%29.88 inHg

5:00 AM

Mostly clear night

68° 💧 None 💨 6 mph H 53%29.91 inHg

6:00 AM

Sunny

67° 💧 None 💨 7 mph H 55%29.91 inHg

7:00 AM

Sunny

70° 💧 None 💨 9 mph H 52%29.94 inHg

8:00 AM

Mostly sunny

75° 💧 None 💨 9 mph H 43%29.94 inHg

9:00 AM

Sunny

80° 💧 None 💨 9 mph H 37%29.94 inHg

10:00 AM

Sunny

84° 💧 None 💨 9 mph H 31%29.91 inHg

11:00 AM

Partly cloudy

88° 💧 None 💨 8 mph H 25%29.88 inHg

12:00 PM

Mostly cloudy

89° 💧 0.002 in 💨 12 mph H 22%29.85 inHg

1:00 PM

Light thunderstorms

87° 💧 0.008 in 💨 14 mph H 26%29.85 inHg

2:00 PM

Light thunderstorms

88° 💧 0.015 in 💨 10 mph H 24%29.83 inHg

3:00 PM

Mostly cloudy

90° 💧 0.000 in 💨 10 mph H 22%29.77 inHg

4:00 PM

Light thunderstorms

82° 💧 0.008 in 💨 19 mph H 37%29.83 inHg

5:00 PM

Overcast

84° 💧 0.001 in 💨 13 mph H 29%29.80 inHg

6:00 PM

Mostly cloudy

81° 💧 None 💨 16 mph H 38%29.83 inHg

7:00 PM

Partly cloudy night

78° 💧 0.001 in 💨 10 mph H 45%29.85 inHg

8:00 PM

Partly cloudy night

76° 💧 None 💨 4 mph H 51%29.88 inHg

9:00 PM

Partly cloudy night

74° 💧 None 💨 3 mph H 56%29.91 inHg

10:00 PM

Mostly clear night

73° 💧 None 💨 5 mph H 59%29.91 inHg

11:00 PM

Partly cloudy night

71° 💧 None 💨 6 mph H 62%29.91 inHg

Saturday

12:00 AM

Mostly clear night

70° 💧 None 💨 6 mph H 64%29.91 inHg

1:00 AM

Mostly clear night

68° 💧 None 💨 4 mph H 68%29.91 inHg

2:00 AM

Clear night

67° 💧 None 💨 4 mph H 71%29.94 inHg

3:00 AM

Clear night

66° 💧 None 💨 4 mph H 72%29.94 inHg

4:00 AM

Clear night

66° 💧 None 💨 4 mph H 74%29.94 inHg

5:00 AM

Clear night

65° 💧 None 💨 4 mph H 76%29.94 inHg

8:00 AM

Sunny

71° 💧 None 💨 4 mph H 60%30.00 inHg

11:00 AM

Sunny

82° 💧 None 💨 6 mph H 40%29.97 inHg

2:00 PM

Sunny

88° 💧 None 💨 6 mph H 28%29.83 inHg

5:00 PM

Mostly sunny

87° 💧 None 💨 9 mph H 29%29.80 inHg

8:00 PM

Mostly clear night

80° 💧 None 💨 8 mph H 39%29.85 inHg

11:00 PM

Clear night

74° 💧 None 💨 6 mph H 54%29.91 inHg

Sunday

2:00 AM

Clear night

69° 💧 None 💨 5 mph H 67%29.91 inHg

5:00 AM

Clear night

66° 💧 None 💨 5 mph H 77%29.91 inHg

8:00 AM

Sunny

72° 💧 None 💨 9 mph H 64%29.94 inHg

11:00 AM

Light rain

82° 💧 None 💨 10 mph H 42%29.88 inHg

2:00 PM

Mostly sunny

88° 💧 None 💨 12 mph H 32%29.77 inHg

5:00 PM

Mostly sunny

85° 💧 None 💨 13 mph H 33%29.74 inHg

8:00 PM

Light rain

76° 💧 None 💨 10 mph H 52%29.83 inHg

11:00 PM

Clear night

70° 💧 None 💨 6 mph H 71%29.85 inHg

Monday

2:00 AM

Mostly clear night

67° 💧 None 💨 5 mph H 75%29.88 inHg

5:00 AM

Mostly clear night

65° 💧 None 💨 4 mph H 83%29.91 inHg

8:00 AM

Sunny

70° 💧 None 💨 4 mph H 68%29.97 inHg

11:00 AM

Mostly sunny

79° 💧 None 💨 3 mph H 48%29.91 inHg

2:00 PM

Mostly sunny

84° 💧 None 💨 6 mph H 39%29.83 inHg

5:00 PM

Mostly cloudy

84° 💧 None 💨 3 mph H 33%29.77 inHg

8:00 PM

Mostly clear night

78° 💧 None 💨 7 mph H 43%29.83 inHg

11:00 PM

Light rain

70° 💧 None 💨 10 mph H 66%29.94 inHg

Tuesday

5:00 AM

Clear night

71° 💧 None 💨 5 mph H 59%29.94 inHg

11:00 AM

Sunny

64° 💧 None 💨 3 mph H 78%30.00 inHg

5:00 PM

Sunny

80° 💧 None 💨 4 mph H 41%30.00 inHg

11:00 PM

Light rain

84° 💧 None 💨 11 mph H 32%29.85 inHg

Wednesday

5:00 AM

Clear night

72° 💧 None 💨 6 mph H 63%30.00 inHg

11:00 AM

Sunny

64° 💧 None 💨 5 mph H 83%30.06 inHg

5:00 PM

Sunny

80° 💧 None 💨 4 mph H 41%30.06 inHg

11:00 PM

Clear night

86° 💧 None 💨 4 mph H 25%29.88 inHg

Thursday

5:00 AM

Partly cloudy night

74° 💧 None 💨 4 mph H 40%30.00 inHg

11:00 AM

Sunny

65° 💧 None 💨 5 mph H 63%30.06 inHg

5:00 PM

Sunny

83° 💧 None 💨 3 mph H 30%30.03 inHg

11:00 PM

Partly cloudy night

87° 💧 None 💨 3 mph H 25%29.88 inHg

Friday

5:00 AM

Overcast night

72° 💧 None 💨 11 mph H 63%30.06 inHg

11:00 AM

Partly cloudy

67° 💧 None 💨 5 mph H 80%30.06 inHg

5:00 PM

Partly cloudy

81° 💧 None 💨 6 mph H 38%30.03 inHg

11:00 PM

Mostly clear night

77° 💧 None 💨 9 mph H 50%29.91 inHg

Saturday

5:00 AM

Clear night

66° 💧 None 💨 6 mph H 77%30.00 inHg

11:00 AM

Sunny

62° 💧 None 💨 2 mph H 84%30.00 inHg

5:00 PM

Sunny

77° 💧 None 💨 2 mph H 46%29.97 inHg

11:00 PM

Mostly clear night

81° 💧 None 💨 9 mph H 29%29.80 inHg

Sunday

5:00 AM

Mostly clear night

67° 💧 None 💨 6 mph H 56%29.88 inHg

11:00 AM

Mostly sunny

60° 💧 None 💨 3 mph H 76%29.91 inHg

5:00 PM

Mostly sunny

81° 💧 None 💨 16 mph H 30%29.88 inHg

11:00 PM

Clear night

83° 💧 None 💨 16 mph H 21%29.77 inHg

Monday

5:00 AM

Clear night

68° 💧 None 💨 7 mph H 44%29.85 inHg

11:00 AM

Sunny

58° 💧 None 💨 3 mph H 64%29.91 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 8 mph H 18%29.94 inHg

11:00 PM

Clear night

83° 💧 None 💨 12 mph H 12%29.80 inHg

Tuesday

5:00 AM

Clear night

66° 💧 None 💨 8 mph H 30%29.91 inHg

11:00 AM

Sunny

56° 💧 None 💨 5 mph H 45%29.91 inHg

5:00 PM

Sunny

79° 💧 None 💨 14 mph H 13%29.85 inHg

11:00 PM

Clear night

81° 💧 None 💨 15 mph H 10%29.74 inHg

Wednesday

5:00 AM

Clear night

63° 💧 None 💨 8 mph H 19%29.91 inHg

11:00 AM

Sunny

52° 💧 None 💨 3 mph H 27%29.94 inHg

5:00 PM

Sunny

78° 💧 None 💨 18 mph H 12%29.88 inHg

11:00 PM

Clear night

76° 💧 None 💨 21 mph H 7%29.77 inHg

In Sun Valley and, more broadly, across the state of Arizona: The rest of the day will feature clear skies and very hot temperatures, ranging from 90 to 97 degrees Fahrenheit. Expect the weather to remain dry with no precipitation anticipated. Winds will be moderate from the southwest at speeds up to 11 mph, with gusts around 8 mph. As the afternoon progresses, temperatures will stay high, so it’s important to stay hydrated and protect yourself from the sun. There are no signs of rain or thunderstorms, making for a dry and warm rest of the day.

15-Day Weather Outlook for Sun Valley

TomorrowTomorrow

Mostly sunny 93°/62° 💧 None 💨 14 mph

Friday, Sep 11Fri Sep 11

Light thunderstorms 92°/67° 💧 None 💨 19 mph

Saturday, Sep 12Sat Sep 12

Overcast 88°/65° 💧 0.001 in 💨 16 mph

Sunday, Sep 13Sun Sep 13

Light rain 88°/66° 💧 0.018 in 💨 12 mph

Monday, Sep 14Mon Sep 14

Light rain 85°/65° 💧 0.074 in 💨 13 mph

Tuesday, Sep 15Tue Sep 15

Light rain 84°/64° 💧 0.020 in 💨 10 mph

Wednesday, Sep 16Wed Sep 16

Light rain 84°/64° 💧 0.044 in 💨 11 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 86°/65° 💧 0.001 in 💨 5 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 87°/67° 💧 0.029 in 💨 11 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 81°/62° 💧 0.114 in 💨 9 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 81°/60° 💧 0.005 in 💨 9 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 83°/58° 💧 None 💨 16 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 83°/56° 💧 None 💨 12 mph

Wednesday, Sep 23Wed Sep 23

Sunny 81°/52° 💧 None 💨 15 mph

Thursday, Sep 24Thu Sep 24

Sunny 78°/76° 💧 None 💨 21 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Sun Valley

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Sun Valley

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 1:00 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 12,0µg/m³

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

O₃ Ozone Fair 67,5µg/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 Sun Valley

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 9,6Very high 🙂Fair

Tomorrow UV 9,6Very high 🙂Fair

Friday UV 9,5Very high 🙂Fair

Saturday UV 9,5Very high 🙂Fair

Sunday UV 8,0Very high 😊Good

Monday UV 7,0High —Unavailable

Tuesday UV 6,0High —Unavailable

Hourly UV index today

1:00 PMUV 9,3 2:00 PMUV 7,6 3:00 PMUV 5,2 4:00 PMUV 2,7 5:00 PMUV 0,9 6:00 PMUV 0,2 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.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure. Dry air can increase hydration needs.

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 Sun Valley

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SUN VALLEY, ARIZONA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 10:00 PM–11:00 PM.

100/100Best-hour score

BEST TIME TONIGHT 10:00 PM–11:00 PM Astronomical darkness: 8:01 PM–4:33 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 3% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 19° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min42%

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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Sun Valley were last refreshed today at 12:17 PM. The current forecast period extends through 11/09/2026 at 10:00 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.