Weather forecast for 10 daysArbon Valley, ID

Weather forecast for the weekend

Sunday Oct 18, 2026

70°F
36°F

Mostly Sunny

Precip. probability: 1%
Precipitation: 0"
Wind: 8mphSSW 206°
Humidity: 41%
UV index: 4
Sunrise: 7:47 am MDT
Sunset: 6:43 pm MDT
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On Sunday, October 18, a pleasant, mostly sunny outlook is in place.
A high of a delightful 69.8°F during the day contrasts markedly with a low of a wintry 35.6°F at night.
Sunrise was at 7:47 am and sunset will be at 6:43 pm; the daylight will last for 10h and 55min.

10-day overview

Daily temperatures

Maximum temperature: 70°C.
Coldest day: Friday 50°C.

Chance of precipitation

Highest chance: Friday 84%.

Long-term weather forecast

Sunday
Oct 18, 2026

70°F
36°F

Mostly Sunny

Precip. probability: 1%
Precipitation: 0"
Wind: 8mphSSW 206°
Humidity: 41%
UV index: 4
Sunrise: 7:47 am MDT
Sunset: 6:43 pm MDT
details ▼

Monday
Oct 19, 2026

70°F
43°F

Sunny

Precip. probability: 1%
Precipitation: 0"
Wind: 12mphSSE 165°
Humidity: 49%
UV index: 4
Sunrise: 7:48 am MDT
Sunset: 6:41 pm MDT
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Tuesday
Oct 20, 2026

68°F
41°F

Partly Cloudy

Precip. probability: 23%
Precipitation: 0"
Wind: 9mphSSE 148°
Humidity: 65%
UV index: 3
Sunrise: 7:50 am MDT
Sunset: 6:40 pm MDT
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Wednesday
Oct 21, 2026

70°F
45°F

Mostly Sunny

Precip. probability: 19%
Precipitation: 0"
Wind: 8mphSE 133°
Humidity: 68%
UV index: 3
Sunrise: 7:51 am MDT
Sunset: 6:38 pm MDT
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Thursday
Oct 22, 2026

66°F
41°F

PM Thunderstorms

Precip. probability: 51%
Precipitation: 0.31"
Wind: 10mphSSE 166°
Humidity: 69%
UV index: 3
Sunrise: 7:52 am MDT
Sunset: 6:37 pm MDT
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Friday
Oct 23, 2026

50°F
30°F

Rain

Precip. probability: 84%
Precipitation: 0.31"
Wind: 16mphSW 232°
Humidity: 92%
UV index: 2
Sunrise: 7:53 am MDT
Sunset: 6:35 pm MDT
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Saturday
Oct 24, 2026

54°F
32°F

Partly Cloudy

Precip. probability: 7%
Precipitation: 0"
Wind: 8mphSSW 211°
Humidity: 79%
UV index: 3
Sunrise: 7:55 am MDT
Sunset: 6:34 pm MDT
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Sunday
Oct 25, 2026

59°F
34°F

Partly Cloudy

Precip. probability: 6%
Precipitation: 0"
Wind: 10mphS 173°
Humidity: 73%
UV index: 3
Sunrise: 7:56 am MDT
Sunset: 6:32 pm MDT
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Monday
Oct 26, 2026

57°F
30°F

Partly Cloudy

Precip. probability: 24%
Precipitation: 0"
Wind: 11mphS 183°
Humidity: 67%
UV index: 3
Sunrise: 7:57 am MDT
Sunset: 6:31 pm MDT
details ▼

Tuesday
Oct 27, 2026

54°F
30°F

Partly Cloudy

Precip. probability: 22%
Precipitation: 0"
Wind: 11mphSW 231°
Humidity: 71%
UV index: 3
Sunrise: 7:58 am MDT
Sunset: 6:29 pm MDT
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An unsettled pattern is expected over the next ten days, and a mix of overcast, mostly clear, turbulent and rain-soaked weather is forecasted.
With light precipitation of 0.31", rainfall is predicted for Thursday and Friday.
Noticeable swings in temperature are expected throughout the forecast window. The temperature is expected to swing from 50°F up to 69.8°F, while the lowest nightly temperature differences will be also quite pronounced, as the minimum temperature is expected to range between 30.2°F and 44.6°F.
With a maximum temperature of 69.8°F, Sunday, Monday and Wednesday will be the warmest days; the lowest daytime temperature of the period will be reached on Friday, peaking at 50°F.

Updated: Oct 18, 2026 @ 15:09:18 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate