Weather forecast for tomorrowKetchum, ID

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 64°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSE 161°
  • Humidity: 41%
  • UV index: 3
  • Sunrise: 7:55 am MDT
  • Sunset: 6:49 pm MDT
  • ▼
On Sunday, in Ketchum, patchy clouds will move across the sky, allowing for sunshine at times.
Substantial temperature fluctuations from a high of a breezy 64.4°F to a low of a cold 33.8°F are predicted.
Tomorrow, the expected temperature appears higher and closer to September's norm of 63.7°F.
Sunrise will be at 7:55 am and sunset at 6:49 pm; tomorrow's daylight will last for 10h and 53min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 61°C.
Coldest hour: 6 am 36°C.

Chance of precipitation

Highest chance: 1%.

Hourly weather forecast

  • 12 am
  • 41°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphNW 315°
  • Humidity: 57%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNW 323°
  • Humidity: 60%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 37°F
  • Feels like:
    32°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNW 319°
  • Humidity: 65%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 36°F
  • Feels like:
    32°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNW 323°
  • Humidity: 68%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:55 am
  • 8 am
  • 36°F
  • Feels like:
    30°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNW 304°
  • Humidity: 70%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 45°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNW 314°
  • Humidity: 55%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSE 125°
  • Humidity: 40%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSE 136°
  • Humidity: 33%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSE 140°
  • Humidity: 30%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSE 136°
  • Humidity: 34%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:49 pm
  • 8 pm
  • 50°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphESE 116°
  • Humidity: 51%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphWNW 292°
  • Humidity: 57%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of dry and sunny and overcast weather is predicted.
The temperature will vary between the lowest temperature of 35.6°F and the highest temperature of 62.6°F. The warmest part of the day will be around 4 pm.
Tomorrow, the expected high matches September's average of 63.7°F more than October's. The night temperature will be comparable to the standard October low of 31.1°F.
Updated: Oct 18, 2026 @ 05:30:53 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Ketchum, sun and clouds will share the sky, creating a partly cloudy day.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 33.8°F.
Tomorrow, the highest temperature will be uncommonly 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.