Weather forecast for 10 daysRoslyn, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphWNW 300°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:50 am CDT
- Sunset: 6:39 pm CDT
- details ▼
On Sunday, October 18, skies are expected to be clear and full of sunshine.
Substantial temperature fluctuations from a high of a breezy 66.2°F to a low of a wintry 39.2°F are predicted.
The higher temperature of 66.2°F is more typical of September than October.
Sunrise will be at 7:50 am and sunset at 6:39 pm; the daylight will last for 10h and 49min.
Substantial temperature fluctuations from a high of a breezy 66.2°F to a low of a wintry 39.2°F are predicted.
The higher temperature of 66.2°F is more typical of September than October.
Sunrise will be at 7:50 am and sunset at 6:39 pm; the daylight will last for 10h and 49min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 73°C.
Coldest period: Sunday - Tuesday 57°C.
Coldest period: Sunday - Tuesday 57°C.
Chance of precipitation
Highest chance: 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphWNW 300°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:50 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 43°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 13mphE 89°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:51 am CDT
- Sunset: 6:37 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 46°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 16mphS 172°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:53 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 45°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 8mphNE 36°
- Humidity: 69%
- UV index: 3
- Sunrise: 7:54 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 73°F
- 57°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 14mphSSE 150°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:56 am CDT
- Sunset: 6:32 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 57°F
Mostly Cloudy / Wind
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 23mphSSE 163°
- Humidity: 57%
- UV index: 2
- Sunrise: 7:57 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 61°F
- 41°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 19mphWSW 246°
- Humidity: 64%
- UV index: 2
- Sunrise: 7:58 am CDT
- Sunset: 6:29 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 57°F
- 41°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphWNW 300°
- Humidity: 58%
- UV index: 3
- Sunrise: 8:00 am CDT
- Sunset: 6:27 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 57°F
- 46°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 15mphSE 126°
- Humidity: 74%
- UV index: 3
- Sunrise: 8:01 am CDT
- Sunset: 6:26 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 57°F
- 45°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 17mphSSE 152°
- Humidity: 72%
- UV index: 2
- Sunrise: 8:02 am CDT
- Sunset: 6:24 pm CDT
- details ▼
Over the next ten days, conditions will reflect that a combination of mostly clear and gloomy weather is forecasted.
Rainfall is not predicted in Roslyn in the upcoming days.
Noticeable swings in temperature are expected in the upcoming period. The maximum temperature will vary between 57.2°F and 73.4°F, while the variation in nighttime lows will be also notably wide, as nighttime lows are forecast to fall between 39.2°F and 57.2°F.
Thursday and Friday, with the highest temperature of 73.4°F, will be the warmest days in Roslyn, South Dakota; with a maximum temperature of 57.2°F, next Sunday through next Tuesday will be the coldest days in Roslyn, South Dakota.
Rainfall is not predicted in Roslyn in the upcoming days.
Noticeable swings in temperature are expected in the upcoming period. The maximum temperature will vary between 57.2°F and 73.4°F, while the variation in nighttime lows will be also notably wide, as nighttime lows are forecast to fall between 39.2°F and 57.2°F.
Thursday and Friday, with the highest temperature of 73.4°F, will be the warmest days in Roslyn, South Dakota; with a maximum temperature of 57.2°F, next Sunday through next Tuesday will be the coldest days in Roslyn, South Dakota.
Updated: Oct 18, 2026 @ 10:54:33 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
Today, sunny skies and pleasant visibility are expected.
Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 39.2°F.
Today, the highest temperature will be uncommonly higher than the average maximum of 53.8°F in October. Today, the lowest temperature will be in line with the average low temperature.
Today, the highest temperature will be uncommonly higher than the average maximum of 53.8°F in October. Today, the lowest temperature will be in line with the average low temperature.
On Sunday, in Roslyn, sunrise will be at 7:50 am and sunset at 6:39 pm (CDT).
In Roslyn, the length of the day today will be 10h and 49min.
