Weather forecast for 10 daysRapid Valley, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 68°F
- 37°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphN 0°
- Humidity: 31%
- UV index: 3
- Sunrise: 7:11 am MDT
- Sunset: 6:03 pm MDT
- details ▼
On Sunday, in Rapid Valley, mostly sunny and dry conditions will continue.
A remarkable high of an agreeable 68°F during the day and a stark low of a wintry 37.4°F at night are anticipated.
Today, meteorological data suggests the high will feel more like September, based on a forecast of 68°F.
Sunrise will be at 7:11 am and sunset at 6:03 pm; the daylight will last for 10h and 53min.
A remarkable high of an agreeable 68°F during the day and a stark low of a wintry 37.4°F at night are anticipated.
Today, meteorological data suggests the high will feel more like September, based on a forecast of 68°F.
Sunrise will be at 7:11 am and sunset at 6:03 pm; the daylight will last for 10h and 53min.
10-day overview
Daily temperatures
Maximum temperature: 77°C.
Minimum temperature: 59°C.
Minimum temperature: 59°C.
Chance of precipitation
Highest chance: Friday 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 68°F
- 37°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphN 0°
- Humidity: 31%
- UV index: 3
- Sunrise: 7:11 am MDT
- Sunset: 6:03 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphSSE 158°
- Humidity: 43%
- UV index: 3
- Sunrise: 7:12 am MDT
- Sunset: 6:02 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 77°F
- 48°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 11mphS 178°
- Humidity: 42%
- UV index: 3
- Sunrise: 7:13 am MDT
- Sunset: 6:00 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 48°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 8mphNE 37°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:15 am MDT
- Sunset: 5:59 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 16mphS 177°
- Humidity: 49%
- UV index: 3
- Sunrise: 7:16 am MDT
- Sunset: 5:57 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 46°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 14mphSSW 211°
- Humidity: 47%
- UV index: 3
- Sunrise: 7:17 am MDT
- Sunset: 5:55 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 59°F
- 39°F
Mostly Sunny
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 13mphNNW 339°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:19 am MDT
- Sunset: 5:54 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 61°F
- 43°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 12mphSSE 160°
- Humidity: 57%
- UV index: 3
- Sunrise: 7:20 am MDT
- Sunset: 5:52 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 64°F
- 43°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 12mphSSE 163°
- Humidity: 56%
- UV index: 3
- Sunrise: 7:21 am MDT
- Sunset: 5:51 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 59°F
- 43°F
Mostly Sunny
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 12mphSSW 207°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:22 am MDT
- Sunset: 5:49 pm MDT
- details ▼
Conditions over the next ten days suggest that a combination of clear and cloudy weather is expected.
Rainfall is not anticipated in Rapid Valley in the upcoming days.
Temperature fluctuation will be noticeable in the upcoming period. Highs will range from 59°F to 77°F, while the nightly low temperatures will show also a considerable swing, as the lowest temperatures will be recorded between 37.4°F and 57.2°F.
The warmest days will be Tuesday, Thursday and Friday, with a maximum of 77°F; the coldest days will be Saturday and next Tuesday, with a maximum of 59°F.
Rainfall is not anticipated in Rapid Valley in the upcoming days.
Temperature fluctuation will be noticeable in the upcoming period. Highs will range from 59°F to 77°F, while the nightly low temperatures will show also a considerable swing, as the lowest temperatures will be recorded between 37.4°F and 57.2°F.
The warmest days will be Tuesday, Thursday and Friday, with a maximum of 77°F; the coldest days will be Saturday and next Tuesday, with a maximum of 59°F.
Updated: Oct 18, 2026 @ 10:29:28 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, mainly sunny conditions will dominate the day.
Today, the highest temperature will be 68°F, while the lowest temperature will be 37.4°F.
Today, the highest temperature will be uncommonly higher than the average maximum of 56.5°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 56.5°F in October. Today, the lowest temperature will be in line with the average low temperature.
On Sunday, in Rapid Valley, sunrise will be at 7:11 am and sunset at 6:03 pm (MDT).
In Rapid Valley, today, there will be 10h and 53min of daylight.
