Weather forecast for 10 daysFairfield, ID
Weather forecast for the weekend
Saturday Oct 17, 2026
- min.
- 36°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNE 38°
- Humidity: 43%
- UV index: 0
- Sunrise: 7:55 am MDT
- Sunset: 6:52 pm MDT
- details ▼
In Fairfield, through the afternoon and beyond, expect a quiet sky, mostly free of clouds.
The lowest forecasted temperature is a cold 35.6°F.
Sunrise was at 7:55 am and sunset will be at 6:52 pm; the daylight will last for 10h and 57min.
The lowest forecasted temperature is a cold 35.6°F.
Sunrise was at 7:55 am and sunset will be at 6:52 pm; the daylight will last for 10h and 57min.
Sunday Oct 18, 2026
- 68°F
- 36°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphE 94°
- Humidity: 38%
- UV index: 4
- Sunrise: 7:57 am MDT
- Sunset: 6:51 pm MDT
- details ▼
On Sunday, October 18, expect a partly sunny afternoon with variable cloud cover.
Temperature changes will be considerable, from a high of a pleasant 68°F to a low of an icy 35.6°F.
Tomorrow, the maximum temperature will be higher and more reflective of September's average high of 70.9°F than October's of 54°F.
Sunrise will be at 7:57 am and sunset at 6:51 pm; tomorrow's daylight will last for 10h and 54min.
Temperature changes will be considerable, from a high of a pleasant 68°F to a low of an icy 35.6°F.
Tomorrow, the maximum temperature will be higher and more reflective of September's average high of 70.9°F than October's of 54°F.
Sunrise will be at 7:57 am and sunset at 6:51 pm; tomorrow's daylight will last for 10h and 54min.
10-day overview
Daily temperatures
Maximum temperature: 70°C.
Minimum temperature: 48°C.
Minimum temperature: 48°C.
Chance of precipitation
Highest chance: Thursday 47%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 36°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNE 38°
- Humidity: 43%
- UV index: 0
- Sunrise: 7:55 am MDT
- Sunset: 6:52 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 68°F
- 36°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphE 94°
- Humidity: 38%
- UV index: 4
- Sunrise: 7:57 am MDT
- Sunset: 6:51 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 70°F
- 43°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphE 85°
- Humidity: 39%
- UV index: 3
- Sunrise: 7:58 am MDT
- Sunset: 6:49 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 66°F
- 43°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 12mphE 82°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:59 am MDT
- Sunset: 6:48 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 45°F
Partly Cloudy
- Precip. probability: 23%
- Precipitation: 0.04"
- Wind: 12mphE 85°
- Humidity: 61%
- UV index: 3
- Sunrise: 8:00 am MDT
- Sunset: 6:46 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 61°F
- 41°F
Showers
- Precip. probability: 47%
- Precipitation: 0.28"
- Wind: 11mphE 87°
- Humidity: 77%
- UV index: 3
- Sunrise: 8:02 am MDT
- Sunset: 6:45 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 48°F
- 28°F
AM Showers
- Precip. probability: 38%
- Precipitation: 0.08"
- Wind: 14mphWNW 287°
- Humidity: 86%
- UV index: 3
- Sunrise: 8:03 am MDT
- Sunset: 6:43 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 48°F
- 32°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 8mphE 81°
- Humidity: 69%
- UV index: 3
- Sunrise: 8:04 am MDT
- Sunset: 6:42 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 54°F
- 32°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 10mphE 80°
- Humidity: 69%
- UV index: 3
- Sunrise: 8:05 am MDT
- Sunset: 6:40 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 48°F
- 30°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 9mphE 100°
- Humidity: 72%
- UV index: 3
- Sunrise: 8:07 am MDT
- Sunset: 6:39 pm MDT
- details ▼
Models point to a combination of primarily cloudy and occasionally rain-filled and bright weather is anticipated.
Rainfall is forecasted for Wednesday through Friday.
Noticeable swings in temperature are expected across the forecast period. Highs will range from 48.2°F to 69.8°F, while the lowest night temperatures will vary also significantly, as temperatures overnight will fluctuate from 28.4°F up to 44.6°F.
With the highest temperature of 69.8°F, Monday will be the warmest day; the coldest days will be Friday, next Saturday and Monday, with a maximum of 48.2°F.
Rainfall is forecasted for Wednesday through Friday.
Noticeable swings in temperature are expected across the forecast period. Highs will range from 48.2°F to 69.8°F, while the lowest night temperatures will vary also significantly, as temperatures overnight will fluctuate from 28.4°F up to 44.6°F.
With the highest temperature of 69.8°F, Monday will be the warmest day; the coldest days will be Friday, next Saturday and Monday, with a maximum of 48.2°F.
Updated: Oct 17, 2026 @ 21:58:08 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
On Sunday, a partly cloudy outlook will keep the sky interesting throughout the day.
Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 35.6°F.
The highest temperature will be notably higher than the average maximum of 54°F in October. The lowest temperature will be in line with the average low of 36.9°F.
The highest temperature will be notably higher than the average maximum of 54°F in October. The lowest temperature will be in line with the average low of 36.9°F.
On Sunday, in Fairfield, sunrise will be at 7:57 am and sunset at 6:51 pm (MDT).
In Fairfield, the length of the day tomorrow will be 10h and 54min.





