Weather forecast for 10 daysWestport, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 36°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 13mphN 10°
- Humidity: 44%
- UV index: 3
- Sunrise: 7:54 am CDT
- Sunset: 6:43 pm CDT
- details ▼
Today, on Sunday, October 18, sunshine is forecasted under mostly clear skies.
A considerable disparity in temperature is expected, reaching up to a maximum of an agreeable 69.8°F and falling to a minimum of a wintry 35.6°F.
The anticipated high is warmer and better reflects September's normal temperature profile than that of October.
Sunrise was at 7:54 am and sunset will be at 6:43 pm; the daylight will last for 10h and 49min.
A considerable disparity in temperature is expected, reaching up to a maximum of an agreeable 69.8°F and falling to a minimum of a wintry 35.6°F.
The anticipated high is warmer and better reflects September's normal temperature profile than that of October.
Sunrise was at 7:54 am and sunset will be at 6:43 pm; the daylight will last for 10h and 49min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 73°C.
Coldest day: Sunday 25.10. 55°C.
Coldest day: Sunday 25.10. 55°C.
Chance of precipitation
Highest chance: 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 70°F
- 36°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 13mphN 10°
- Humidity: 44%
- UV index: 3
- Sunrise: 7:54 am CDT
- Sunset: 6:43 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphENE 70°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:56 am CDT
- Sunset: 6:41 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 43°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 14mphS 170°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:57 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 41°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 10mphNNE 25°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:58 am CDT
- Sunset: 6:38 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 73°F
- 57°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 12mphSE 139°
- Humidity: 70%
- UV index: 3
- Sunrise: 8:00 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 52°F
Mostly Cloudy / Wind
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 22mphSSE 164°
- Humidity: 59%
- UV index: 2
- Sunrise: 8:01 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 57°F
- 36°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 15mphWNW 293°
- Humidity: 64%
- UV index: 2
- Sunrise: 8:03 am CDT
- Sunset: 6:33 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 55°F
- 39°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphE 83°
- Humidity: 62%
- UV index: 3
- Sunrise: 8:04 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 57°F
- 46°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 12mphSE 124°
- Humidity: 74%
- UV index: 3
- Sunrise: 8:05 am CDT
- Sunset: 6:30 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 57°F
- 43°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0.04"
- Wind: 14mphSE 133°
- Humidity: 76%
- UV index: 2
- Sunrise: 8:07 am CDT
- Sunset: 6:28 pm CDT
- details ▼
Across the following ten days, a combination of mostly clear and dull weather is predicted.
With a 24% probability, rainfall is forecasted only for next Tuesday. The precipitation will be minimal at 0.04".
Significant changes in temperature are expected across the forecast period. Forecast highs will fluctuate between 55.4°F and 73.4°F, while the fluctuation in night temperatures will be also significant, as temperatures overnight will fluctuate from 35.6°F up to 57.2°F.
The warmest days in Westport will be Thursday and Friday, with a maximum of 73.4°F; the coldest day will be next Sunday, with a maximum of 55.4°F.
With a 24% probability, rainfall is forecasted only for next Tuesday. The precipitation will be minimal at 0.04".
Significant changes in temperature are expected across the forecast period. Forecast highs will fluctuate between 55.4°F and 73.4°F, while the fluctuation in night temperatures will be also significant, as temperatures overnight will fluctuate from 35.6°F up to 57.2°F.
The warmest days in Westport will be Thursday and Friday, with a maximum of 73.4°F; the coldest day will be next Sunday, with a maximum of 55.4°F.
Updated: Oct 18, 2026 @ 14:04:53 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, sunshine and minimal clouds are in the outlook.
Today, the maximum temperature in Westport will be 69.8°F, while the minimum temperature will be 35.6°F.
The highest temperature will be noticeably higher than the average maximum of 56.3°F in October. The lowest temperature today will be moderately lower than the average low temperature.
The highest temperature will be noticeably higher than the average maximum of 56.3°F in October. The lowest temperature today will be moderately lower than the average low temperature.
On Sunday, in Westport, sunrise was at 7:54 am and sunset will be at 6:43 pm (CDT).
In Westport, today, there will be 10h and 49min of daylight.
