Weather forecast for 10 daysSun Valley, AZ
Weather forecast for the weekend
Sunday Oct 18, 2026
- 68°F
- 43°F
Mostly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 7mphE 79°
- Humidity: 45%
- UV index: 5
- Sunrise: 6:28 am MST
- Sunset: 5:41 pm MST
- details ▼
Tomorrow, in Sun Valley, expect continuous cloudiness with subdued daylight.
Rainfall is not forecasted. The maximum expected temperature is an agreeable 68°F, while the minimum temperature will be a chilly 42.8°F.
Tomorrow's high temperature will mirror the usual October maximum of 70.5°F.
Sunrise will be at 6:28 am and sunset at 5:41 pm; tomorrow's daylight will last for 11h and 13min.
Rainfall is not forecasted. The maximum expected temperature is an agreeable 68°F, while the minimum temperature will be a chilly 42.8°F.
Tomorrow's high temperature will mirror the usual October maximum of 70.5°F.
Sunrise will be at 6:28 am and sunset at 5:41 pm; tomorrow's daylight will last for 11h and 13min.
10-day overview
Daily temperatures
Warmest day: Tuesday 75°C.
Coldest period: Friday - Saturday 63°C.
Coldest period: Friday - Saturday 63°C.
Chance of precipitation
Highest chance: Thursday 70%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 45°F
Showers Early
- Precip. probability: 35%
- Precipitation: 0"
- Wind: 6mphNW 304°
- Humidity: 47%
- UV index: 0
- Sunrise: 6:27 am MST
- Sunset: 5:42 pm MST
- details ▼
- Sunday
- Oct 18, 2026
- 68°F
- 43°F
Mostly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 7mphE 79°
- Humidity: 45%
- UV index: 5
- Sunrise: 6:28 am MST
- Sunset: 5:41 pm MST
- details ▼
- Monday
- Oct 19, 2026
- 70°F
- 48°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 10mphSSE 152°
- Humidity: 57%
- UV index: 6
- Sunrise: 6:29 am MST
- Sunset: 5:40 pm MST
- details ▼
- Tuesday
- Oct 20, 2026
- 75°F
- 52°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0.04"
- Wind: 13mphS 171°
- Humidity: 52%
- UV index: 6
- Sunrise: 6:30 am MST
- Sunset: 5:39 pm MST
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 54°F
Scattered Thunderstorms
- Precip. probability: 48%
- Precipitation: 0.31"
- Wind: 12mphSSE 162°
- Humidity: 60%
- UV index: 3
- Sunrise: 6:31 am MST
- Sunset: 5:37 pm MST
- details ▼
- Thursday
- Oct 22, 2026
- 70°F
- 48°F
Thunderstorms
- Precip. probability: 70%
- Precipitation: 0.39"
- Wind: 18mphS 179°
- Humidity: 67%
- UV index: 3
- Sunrise: 6:32 am MST
- Sunset: 5:36 pm MST
- details ▼
- Friday
- Oct 23, 2026
- 63°F
- 37°F
Mostly Sunny
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 12mphSW 229°
- Humidity: 59%
- UV index: 5
- Sunrise: 6:33 am MST
- Sunset: 5:35 pm MST
- details ▼
- Saturday
- Oct 24, 2026
- 63°F
- 39°F
Sunny
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 7mphESE 105°
- Humidity: 60%
- UV index: 5
- Sunrise: 6:34 am MST
- Sunset: 5:34 pm MST
- details ▼
- Sunday
- Oct 25, 2026
- 66°F
- 45°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 9mphSE 136°
- Humidity: 51%
- UV index: 5
- Sunrise: 6:34 am MST
- Sunset: 5:33 pm MST
- details ▼
- Monday
- Oct 26, 2026
- 64°F
- 45°F
Partly Cloudy
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 12mphSSE 164°
- Humidity: 55%
- UV index: 5
- Sunrise: 6:35 am MST
- Sunset: 5:32 pm MST
- details ▼
Weather fluctuations are likely over the next ten days, and a mix of overcast, stormy, bright and damp weather is expected.
Rainfall is expected on Tuesday through Thursday.
Temperature variation will be noticeable in the upcoming period. Maximum temperatures are forecasted between 62.6°F and 75.2°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 37.4°F up to 53.6°F.
Tuesday will be the warmest day, with a maximum temperature of 75.2°F; the coldest days will be Friday and next Saturday, with a maximum of 62.6°F.
Rainfall is expected on Tuesday through Thursday.
Temperature variation will be noticeable in the upcoming period. Maximum temperatures are forecasted between 62.6°F and 75.2°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 37.4°F up to 53.6°F.
Tuesday will be the warmest day, with a maximum temperature of 75.2°F; the coldest days will be Friday and next Saturday, with a maximum of 62.6°F.
Updated: Oct 18, 2026 @ 02:49:35 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, expect mainly cloudy weather with limited sun.
No, it will not rain tomorrow.
Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 42.8°F.
The highest temperature will be in line with the average maximum of 70.5°F in October. The lowest temperature tomorrow will be a couple of degrees lower than the average low temperature.
The highest temperature will be in line with the average maximum of 70.5°F in October. The lowest temperature tomorrow will be a couple of degrees lower than the average low temperature.
On Sunday, in Sun Valley, sunrise will be at 6:28 am and sunset at 5:41 pm (MST).
Tomorrow, the daylight will last for 11h and 13min.
