Weather forecast for 10 daysChallis, ID

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 68°F
  • 30°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphNNW 336°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:56 am MDT
  • Sunset: 6:47 pm MDT
  • ▼
On Sunday, in Challis, sunny skies are in store, with excellent visibility.
Dramatic temperature shifts from a high of a delightful 68°F to a low of a subzero 30.2°F are forecasted.
Today, weather will feel warmer as the high trends toward September's average of 65.7°F.
Sunrise will be at 7:56 am and sunset at 6:47 pm; the daylight will last for 10h and 52min.

10-day overview

Daily temperatures

Warmest period: today - tomorrow 68°C.
Coldest day: Tuesday 27.10. 46°C.

Chance of precipitation

Highest chance: Friday 51%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 68°F
  • 30°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphNNW 336°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:56 am MDT
  • Sunset: 6:47 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 34°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphENE 69°
  • Humidity: 46%
  • UV index: 3
  • Sunrise: 7:57 am MDT
  • Sunset: 6:46 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 64°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 4mphNNE 18°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 7:58 am MDT
  • Sunset: 6:44 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 64°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 4mphN 11°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 8:00 am MDT
  • Sunset: 6:42 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 61°F
  • 37°F
PM Showers
PM Showers
  • Precip. probability: 41%
  • Precipitation: 0"
  • Wind: 6mphWSW 241°
  • Humidity: 71%
  • UV index: 3
  • Sunrise: 8:01 am MDT
  • Sunset: 6:41 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 48°F
  • 25°F
AM Showers
AM Showers
  • Precip. probability: 51%
  • Precipitation: 0.16"
  • Wind: 7mphNNW 337°
  • Humidity: 81%
  • UV index: 3
  • Sunrise: 8:02 am MDT
  • Sunset: 6:39 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 50°F
  • 28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0.08"
  • Wind: 5mphN 5°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 8:04 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 54°F
  • 28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 5mphSSW 211°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 8:05 am MDT
  • Sunset: 6:36 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 50°F
  • 28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 4mphNW 322°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 8:06 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 46°F
  • 27°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 6mphWNW 293°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 8:08 am MDT
  • Sunset: 6:33 pm MDT
  • ▼
Over the next ten days, a mix of gloomy, mostly clear and wet weather is forecasted.
With a 51% probability, rainfall is forecasted only for Friday. The precipitation will be light at 0.16".
There will be a considerable variation in temperature in the upcoming days. Maximum temperatures are forecasted between 46.4°F and 68°F, while the lowest nightly temperature differences will be also quite pronounced, as the minimum temperature is expected to range between 24.8°F and 37.4°F.
The warmest days in Challis will be Sunday and Monday, with a maximum of 68°F; next Tuesday will be the coldest day, with the highest temperature of 46.4°F.
Updated: Oct 18, 2026 @ 07:51:02 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Challis, conditions remain stable and sunny, with little cloud presence.

Today, the maximum temperature will be 68°F, while the minimum temperature will be 30.2°F.
The highest temperature today will be noticeably higher than the average maximum of 49.6°F in October. The lowest temperature will be in line with the average low of 30.2°F.

On Sunday, in Challis, sunrise will be at 7:56 am and sunset at 6:47 pm (MDT).

In Challis, today, there will be 10h and 52min of daylight.