Weather forecast for 10 daysPorcupine, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 68°F
- 36°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphNNE 14°
- Humidity: 34%
- UV index: 4
- Sunrise: 7:07 am MDT
- Sunset: 6:01 pm MDT
- details ▼
Today, on Sunday, October 18, bright conditions and mild breezes are expected.
The daytime temperature will peak at a pleasant 68°F, significantly contrasting with the night's low of a cold 35.6°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 77°F, not October's.
Sunrise was at 7:07 am and sunset will be at 6:01 pm; the daylight will last for 10h and 55min.
The daytime temperature will peak at a pleasant 68°F, significantly contrasting with the night's low of a cold 35.6°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 77°F, not October's.
Sunrise was at 7:07 am and sunset will be at 6:01 pm; the daylight will last for 10h and 55min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 77°C.
Coldest day: Saturday 55°C.
Coldest day: Saturday 55°C.
Chance of precipitation
Highest chance: Friday 30%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 68°F
- 36°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphNNE 14°
- Humidity: 34%
- UV index: 4
- Sunrise: 7:07 am MDT
- Sunset: 6:01 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphESE 107°
- Humidity: 50%
- UV index: 3
- Sunrise: 7:08 am MDT
- Sunset: 6:00 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 75°F
- 45°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 13mphSSW 194°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:09 am MDT
- Sunset: 5:58 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 46°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphN 356°
- Humidity: 57%
- UV index: 3
- Sunrise: 7:10 am MDT
- Sunset: 5:56 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 59°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 16mphS 170°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:12 am MDT
- Sunset: 5:55 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 45°F
PM Showers
- Precip. probability: 30%
- Precipitation: 0.08"
- Wind: 16mphSW 215°
- Humidity: 50%
- UV index: 3
- Sunrise: 7:13 am MDT
- Sunset: 5:53 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 55°F
- 39°F
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 12mphNNW 337°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:14 am MDT
- Sunset: 5:52 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 63°F
- 41°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 12mphSSE 166°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:15 am MDT
- Sunset: 5:50 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 64°F
- 43°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 11mphS 173°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:17 am MDT
- Sunset: 5:49 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 12mphS 182°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:18 am MDT
- Sunset: 5:48 pm MDT
- details ▼
Looking ahead, conditions suggest a period of clear, cloud-filled and rain-filled weather is anticipated.
With a probability of 30%, rainfall is anticipated only on Friday. The precipitation will be minimal at 0.08".
The temperature will vary considerably in the upcoming days. Maximum temperatures are forecasted between 55.4°F and 77°F, while there will be also a marked difference in overnight low temperatures, as the overnight lows will vary from 35.6°F to 59°F.
With a maximum temperature of 77°F, Thursday and Friday will be the warmest days in Porcupine; Saturday will be the coldest day, with the highest temperature of 55.4°F.
With a probability of 30%, rainfall is anticipated only on Friday. The precipitation will be minimal at 0.08".
The temperature will vary considerably in the upcoming days. Maximum temperatures are forecasted between 55.4°F and 77°F, while there will be also a marked difference in overnight low temperatures, as the overnight lows will vary from 35.6°F to 59°F.
With a maximum temperature of 77°F, Thursday and Friday will be the warmest days in Porcupine; Saturday will be the coldest day, with the highest temperature of 55.4°F.
Updated: Oct 18, 2026 @ 15:56:57 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, sun-filled skies will remain for most of the day.
Today, the maximum temperature will be 68°F, while the minimum temperature will be 35.6°F.
The highest temperature today will be notably higher than the average maximum of 58.5°F in October. The lowest temperature will be slightly cooler than the average low of 41°F.
The highest temperature today will be notably higher than the average maximum of 58.5°F in October. The lowest temperature will be slightly cooler than the average low of 41°F.
On Sunday, in Porcupine, sunrise was at 7:07 am and sunset will be at 6:01 pm (MDT).
In Porcupine, today, there will be 10h and 55min of daylight.
