Weather forecast for 10 daysKetchum, ID
Weather forecast for the weekend
Sunday Oct 18, 2026
- 63°F
- 34°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSE 167°
- Humidity: 41%
- UV index: 3
- Sunrise: 7:55 am MDT
- Sunset: 6:49 pm MDT
- details ▼
Tomorrow, partly cloudy skies will persist, making for a mix of sun and clouds.
Significant variations in temperature are predicted, peaking at a breezy 62.6°F and dropping to a low of an icy 33.8°F.
The temperature of 62.6°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 7:55 am and sunset at 6:49 pm; tomorrow's daylight will last for 10h and 53min.
Significant variations in temperature are predicted, peaking at a breezy 62.6°F and dropping to a low of an icy 33.8°F.
The temperature of 62.6°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 7:55 am and sunset at 6:49 pm; tomorrow's daylight will last for 10h and 53min.
10-day overview
Daily temperatures
Warmest period: tomorrow - Monday 63°C.
Coldest day: Saturday 24.10. 43°C.
Coldest day: Saturday 24.10. 43°C.
Chance of precipitation
Highest chance: Thursday 77%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 36°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNW 314°
- Humidity: 58%
- UV index: 0
- Sunrise: 7:54 am MDT
- Sunset: 6:50 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 63°F
- 34°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSE 167°
- Humidity: 41%
- UV index: 3
- Sunrise: 7:55 am MDT
- Sunset: 6:49 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 63°F
- 39°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphSSE 149°
- Humidity: 44%
- UV index: 3
- Sunrise: 7:57 am MDT
- Sunset: 6:47 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 61°F
- 37°F
Mostly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 7mphE 85°
- Humidity: 62%
- UV index: 3
- Sunrise: 7:58 am MDT
- Sunset: 6:46 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 59°F
- 39°F
Showers
- Precip. probability: 38%
- Precipitation: 0.08"
- Wind: 8mphESE 103°
- Humidity: 74%
- UV index: 3
- Sunrise: 7:59 am MDT
- Sunset: 6:44 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 55°F
- 37°F
Rain
- Precip. probability: 77%
- Precipitation: 0.39"
- Wind: 9mphESE 115°
- Humidity: 87%
- UV index: 2
- Sunrise: 8:00 am MDT
- Sunset: 6:42 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 46°F
- 27°F
Showers
- Precip. probability: 41%
- Precipitation: 0.08"
- Wind: 9mphN 354°
- Humidity: 92%
- UV index: 3
- Sunrise: 8:02 am MDT
- Sunset: 6:41 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 43°F
- 28°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 7mphSE 130°
- Humidity: 73%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:39 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 46°F
- 30°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 8mphSE 125°
- Humidity: 78%
- UV index: 3
- Sunrise: 8:04 am MDT
- Sunset: 6:38 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 45°F
- 27°F
Mostly Sunny
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 7mphSE 124°
- Humidity: 76%
- UV index: 3
- Sunrise: 8:05 am MDT
- Sunset: 6:36 pm MDT
- details ▼
overcast, showery and bright weather is predicted.
Rainfall is predicted for Wednesday through Friday.
Temperature fluctuation will be noticeable across the forecast period. Maximum temperatures are forecasted between 42.8°F and 62.6°F, while the fluctuation in night temperatures will be also significant, as the minimum temperature is expected to range between 26.6°F and 39.2°F.
With a maximum temperature of 62.6°F, Sunday and Monday will be the warmest days in Ketchum, Idaho; next Saturday will be the coldest day, with the highest temperature of 42.8°F.
Rainfall is predicted for Wednesday through Friday.
Temperature fluctuation will be noticeable across the forecast period. Maximum temperatures are forecasted between 42.8°F and 62.6°F, while the fluctuation in night temperatures will be also significant, as the minimum temperature is expected to range between 26.6°F and 39.2°F.
With a maximum temperature of 62.6°F, Sunday and Monday will be the warmest days in Ketchum, Idaho; next Saturday will be the coldest day, with the highest temperature of 42.8°F.
Updated: Oct 18, 2026 @ 02:27:48 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, in Ketchum, a pleasant mix of sun and clouds will define the day.
Tomorrow, the highest temperature will be 62.6°F, while the lowest temperature will be 33.8°F.
The highest temperature will be notably higher than the average maximum of 48°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.
The highest temperature will be notably higher than the average maximum of 48°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.
On Sunday, in Ketchum, sunrise will be at 7:55 am and sunset at 6:49 pm (MDT).
Tomorrow, the daylight will last for 10h and 53min.
