Weather forecast for 10 daysLong Valley, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 34°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphNNW 344°
- Humidity: 43%
- UV index: 3
- Sunrise: 7:04 am MDT
- Sunset: 5:58 pm MDT
- details ▼
On Sunday, in Long Valley, a pleasant, mostly sunny outlook is in place.
Daytime will experience a high of a pleasant 69.8°F, significantly differing from the anticipated night low of a wintry 33.8°F.
Today, the weather pattern will resemble September more than October, with a forecast high of 69.8°F.
Sunrise will be at 7:04 am and sunset at 5:58 pm; the daylight will last for 10h and 54min.
Daytime will experience a high of a pleasant 69.8°F, significantly differing from the anticipated night low of a wintry 33.8°F.
Today, the weather pattern will resemble September more than October, with a forecast high of 69.8°F.
Sunrise will be at 7:04 am and sunset at 5:58 pm; the daylight will last for 10h and 54min.
10-day overview
Daily temperatures
Warmest day: Thursday 81°C.
Minimum temperature: 61°C.
Minimum temperature: 61°C.
Chance of precipitation
Highest chance: Friday 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 70°F
- 34°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphNNW 344°
- Humidity: 43%
- UV index: 3
- Sunrise: 7:04 am MDT
- Sunset: 5:58 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 41°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphENE 67°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:05 am MDT
- Sunset: 5:56 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 75°F
- 45°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 14mphS 186°
- Humidity: 49%
- UV index: 3
- Sunrise: 7:06 am MDT
- Sunset: 5:54 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 46°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 9mphNNW 348°
- Humidity: 57%
- UV index: 3
- Sunrise: 7:07 am MDT
- Sunset: 5:53 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 81°F
- 59°F
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 17mphS 170°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:09 am MDT
- Sunset: 5:51 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 79°F
- 50°F
Partly Cloudy / Wind
- Precip. probability: 24%
- Precipitation: 0.16"
- Wind: 20mphS 191°
- Humidity: 49%
- UV index: 3
- Sunrise: 7:10 am MDT
- Sunset: 5:50 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 61°F
- 39°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 16mphNW 323°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:11 am MDT
- Sunset: 5:48 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 63°F
- 43°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 13mphSSE 163°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:12 am MDT
- Sunset: 5:47 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 66°F
- 45°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 14mphSSE 165°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:14 am MDT
- Sunset: 5:45 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 61°F
- 43°F
Mostly Sunny
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 14mphS 188°
- Humidity: 58%
- UV index: 3
- Sunrise: 7:15 am MDT
- Sunset: 5:44 pm MDT
- details ▼
During the upcoming ten-day period, a combination of sun-filled and overcast weather is predicted.
With a probability of 24%, rainfall is forecasted only for Friday. Anticipated precipitation will be light at 0.16".
Significant changes in temperature are expected throughout the forecast window. Highs will range from 60.8°F to 80.6°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 33.8°F and 59°F.
Thursday is expected to be the warmest, reaching up to 80.6°F; Saturday and next Tuesday, with the highest temperature of 60.8°F, will be the coldest days in Long Valley, South Dakota.
With a probability of 24%, rainfall is forecasted only for Friday. Anticipated precipitation will be light at 0.16".
Significant changes in temperature are expected throughout the forecast window. Highs will range from 60.8°F to 80.6°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 33.8°F and 59°F.
Thursday is expected to be the warmest, reaching up to 80.6°F; Saturday and next Tuesday, with the highest temperature of 60.8°F, will be the coldest days in Long Valley, South Dakota.
Updated: Oct 18, 2026 @ 10:33:10 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, in Long Valley, mostly clear skies and sunshine will create ideal daytime conditions.
Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 33.8°F.
The highest temperature will be uncommonly higher than the average maximum of 59.2°F in October. The lowest temperature today will be also noticeably lower than the average low of 43°F.
The highest temperature will be uncommonly higher than the average maximum of 59.2°F in October. The lowest temperature today will be also noticeably lower than the average low of 43°F.
On Sunday, in Long Valley, sunrise will be at 7:04 am and sunset at 5:58 pm (MDT).
In Long Valley, today, there will be 10h and 54min of daylight.
