Weather forecast for 10 daysOpal, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 68°F
- 36°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphNNE 19°
- Humidity: 33%
- UV index: 3
- Sunrise: 7:09 am MDT
- Sunset: 6:00 pm MDT
- details ▼
On Sunday, in Opal, uninterrupted sunshine is anticipated.
The temperature is expected to vary significantly from a high of a pleasant 68°F to a low of an icy 35.6°F.
Today, weather will feel warmer as the high trends toward September's average of 75.4°F.
Sunrise will be at 7:09 am and sunset at 6:00 pm; the daylight will last for 10h and 50min.
The temperature is expected to vary significantly from a high of a pleasant 68°F to a low of an icy 35.6°F.
Today, weather will feel warmer as the high trends toward September's average of 75.4°F.
Sunrise will be at 7:09 am and sunset at 6:00 pm; the daylight will last for 10h and 50min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 75°C.
Coldest day: Tuesday 27.10. 54°C.
Coldest day: Tuesday 27.10. 54°C.
Chance of precipitation
Highest chance: 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 68°F
- 36°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 16mphNNE 19°
- Humidity: 33%
- UV index: 3
- Sunrise: 7:09 am MDT
- Sunset: 6:00 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 41°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 16mphESE 123°
- Humidity: 47%
- UV index: 3
- Sunrise: 7:11 am MDT
- Sunset: 5:58 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 73°F
- 43°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 12mphSSE 155°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:12 am MDT
- Sunset: 5:56 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 46°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphNNE 30°
- Humidity: 58%
- UV index: 3
- Sunrise: 7:13 am MDT
- Sunset: 5:55 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 75°F
- 57°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 17mphSSE 151°
- Humidity: 56%
- UV index: 3
- Sunrise: 7:14 am MDT
- Sunset: 5:53 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 75°F
- 46°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 17mphS 189°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:16 am MDT
- Sunset: 5:51 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 55°F
- 37°F
Partly Cloudy / Wind
- Precip. probability: 22%
- Precipitation: 0.12"
- Wind: 22mphWNW 302°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:17 am MDT
- Sunset: 5:50 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 57°F
- 39°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 14mphESE 118°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:18 am MDT
- Sunset: 5:48 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 57°F
- 39°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 13mphSE 129°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:20 am MDT
- Sunset: 5:47 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 54°F
- 39°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 14mphENE 71°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:21 am MDT
- Sunset: 5:45 pm MDT
- details ▼
Throughout the next ten days, a combination of overcast and mostly clear weather is anticipated.
With a 22% probability, rainfall is anticipated only on Saturday. The precipitation will be minimal at 0.12".
Significant changes in temperature are expected in the next ten days. Forecast highs will fluctuate between 53.6°F and 75.2°F, while there will be also a marked difference in overnight low temperatures, as the lowest temperatures will be recorded between 35.6°F and 57.2°F.
Thursday and Friday, with the highest temperature of 75.2°F, will be the warmest days in Opal; the lowest daytime temperature of the period will be reached on next Tuesday, peaking at 53.6°F.
With a 22% probability, rainfall is anticipated only on Saturday. The precipitation will be minimal at 0.12".
Significant changes in temperature are expected in the next ten days. Forecast highs will fluctuate between 53.6°F and 75.2°F, while there will be also a marked difference in overnight low temperatures, as the lowest temperatures will be recorded between 35.6°F and 57.2°F.
Thursday and Friday, with the highest temperature of 75.2°F, will be the warmest days in Opal; the lowest daytime temperature of the period will be reached on next Tuesday, peaking at 53.6°F.
Updated: Oct 18, 2026 @ 07:30:05 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, clear skies and sunshine are anticipated.
Today, the maximum temperature will be 68°F, while the minimum temperature will be 35.6°F.
Today, the highest temperature will be significantly higher than the average maximum of 56.7°F in October. The lowest temperature today will be a few degrees lower than the average low temperature.
Today, the highest temperature will be significantly higher than the average maximum of 56.7°F in October. The lowest temperature today will be a few degrees lower than the average low temperature.
On Sunday, in Opal, sunrise will be at 7:09 am and sunset at 6:00 pm (MDT).
In Opal, the length of the day today will be 10h and 50min.
