Weather forecast for 10 daysSinai, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 15mphS 190°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:47 am CDT
- Sunset: 6:39 pm CDT
- details ▼
On Sunday, October 18, a sun-drenched sky is anticipated.
Temperature span will be from a high of a breezy 64.4°F to a low of a wintry 39.2°F.
The predicted high will feel warmer, consistent with September's climate average of 72.5°F.
Sunrise was at 7:47 am and sunset will be at 6:39 pm; the daylight will last for 10h and 52min.
Temperature span will be from a high of a breezy 64.4°F to a low of a wintry 39.2°F.
The predicted high will feel warmer, consistent with September's climate average of 72.5°F.
Sunrise was at 7:47 am and sunset will be at 6:39 pm; the daylight will last for 10h and 52min.
10-day overview
Daily temperatures
Warmest day: Thursday 75°C.
Coldest period: Sunday - Monday 57°C.
Coldest period: Sunday - Monday 57°C.
Chance of precipitation
Highest chance: Saturday 41%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 15mphS 190°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:47 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 43°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphE 101°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:48 am CDT
- Sunset: 6:37 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 46°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 17mphSSE 164°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:49 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 46°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 7mphSSE 162°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:51 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 75°F
- 57°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 12mphSE 144°
- Humidity: 71%
- UV index: 3
- Sunrise: 7:52 am CDT
- Sunset: 6:32 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 72°F
- 57°F
Mostly Cloudy / Wind
- Precip. probability: 15%
- Precipitation: 0.04"
- Wind: 24mphSSE 160°
- Humidity: 58%
- UV index: 2
- Sunrise: 7:53 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 61°F
- 43°F
AM Showers
- Precip. probability: 41%
- Precipitation: 0.04"
- Wind: 14mphWSW 247°
- Humidity: 70%
- UV index: 2
- Sunrise: 7:54 am CDT
- Sunset: 6:29 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 57°F
- 43°F
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 9mphE 86°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:56 am CDT
- Sunset: 6:28 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 57°F
- 50°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 13mphSE 134°
- Humidity: 81%
- UV index: 2
- Sunrise: 7:57 am CDT
- Sunset: 6:26 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 61°F
- 46°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 15mphSSE 153°
- Humidity: 75%
- UV index: 2
- Sunrise: 7:58 am CDT
- Sunset: 6:25 pm CDT
- details ▼
Looking ahead, conditions suggest a period of sun-filled, dull and showery weather is predicted.
With minimal precipitation of 0.04", rainfall is expected on Friday and Saturday.
Temperature differences will be noticeable throughout the forecast window. The maximum temperature will vary between 57.2°F and 75.2°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 39.2°F up to 57.2°F.
Thursday is expected to be the warmest, reaching up to 75.2°F; the coldest days will be next Sunday and Monday, with a maximum of 57.2°F.
With minimal precipitation of 0.04", rainfall is expected on Friday and Saturday.
Temperature differences will be noticeable throughout the forecast window. The maximum temperature will vary between 57.2°F and 75.2°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 39.2°F up to 57.2°F.
Thursday is expected to be the warmest, reaching up to 75.2°F; the coldest days will be next Sunday and Monday, with a maximum of 57.2°F.
Updated: Oct 18, 2026 @ 14:07:28 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
Today, conditions remain stable and sunny, with little cloud presence.
Today, the maximum temperature will be 64.4°F, while the minimum temperature will be 39.2°F.
The highest temperature today will be moderately higher than the average maximum temperature in October. Today, the lowest temperature will be in line with the average low temperature.
The highest temperature today will be moderately higher than the average maximum temperature in October. Today, the lowest temperature will be in line with the average low temperature.
On Sunday, in Sinai, sunrise was at 7:47 am and sunset will be at 6:39 pm (CDT).
In Sinai, today, there will be 10h and 52min of daylight.
