Weather forecast for 10 daysHarrison, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 39°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphS 178°
- Humidity: 44%
- UV index: 4
- Sunrise: 7:52 am CDT
- Sunset: 6:46 pm CDT
- details ▼
Tomorrow, in Harrison, a sun-drenched sky is also anticipated.
The peak daytime temperature will touch a pleasant 69.8°F, while the nighttime temperature will descend to a cold 39.2°F.
Temperatures are higher than average, more in line with September's norm of 76.3°F than with October's 59.7°F.
Sunrise will be at 7:52 am and sunset at 6:46 pm; tomorrow's daylight will last for 10h and 54min.
The peak daytime temperature will touch a pleasant 69.8°F, while the nighttime temperature will descend to a cold 39.2°F.
Temperatures are higher than average, more in line with September's norm of 76.3°F than with October's 59.7°F.
Sunrise will be at 7:52 am and sunset at 6:46 pm; tomorrow's daylight will last for 10h and 54min.
10-day overview
Daily temperatures
Warmest day: Friday 79°C.
Coldest day: Sunday 25.10. 59°C.
Coldest day: Sunday 25.10. 59°C.
Chance of precipitation
Highest chance: Saturday 24.10. 34%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 45°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 13mphS 187°
- Humidity: 57%
- UV index: 0
- Sunrise: 7:50 am CDT
- Sunset: 6:47 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 70°F
- 39°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphS 178°
- Humidity: 44%
- UV index: 4
- Sunrise: 7:52 am CDT
- Sunset: 6:46 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 43°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 9mphE 93°
- Humidity: 62%
- UV index: 3
- Sunrise: 7:53 am CDT
- Sunset: 6:44 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 72°F
- 48°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 14mphSSE 161°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:54 am CDT
- Sunset: 6:43 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 45°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 6mphSW 235°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:55 am CDT
- Sunset: 6:41 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 75°F
- 57°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 11mphSE 141°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:57 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 79°F
- 59°F
AM Showers / Wind
- Precip. probability: 31%
- Precipitation: 0.08"
- Wind: 22mphSSE 160°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:58 am CDT
- Sunset: 6:38 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 66°F
- 43°F
PM Showers
- Precip. probability: 34%
- Precipitation: 0.08"
- Wind: 14mphWSW 252°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:59 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 59°F
- 46°F
Partly Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 9mphN 1°
- Humidity: 69%
- UV index: 3
- Sunrise: 8:00 am CDT
- Sunset: 6:35 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 63°F
- 46°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 12mphSSE 155°
- Humidity: 67%
- UV index: 3
- Sunrise: 8:02 am CDT
- Sunset: 6:33 pm CDT
- details ▼
sunny, gloomy and rain-filled weather is anticipated.
With minimal precipitation of 0.08", rainfall is predicted for Friday and next Saturday.
Significant changes in temperature are expected over the next several days. Highs will range from 59°F to 78.8°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 39.2°F up to 59°F.
The warmest day will be Friday, with a maximum of 78.8°F; the coldest day will be next Sunday, with a maximum of 59°F.
With minimal precipitation of 0.08", rainfall is predicted for Friday and next Saturday.
Significant changes in temperature are expected over the next several days. Highs will range from 59°F to 78.8°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 39.2°F up to 59°F.
The warmest day will be Friday, with a maximum of 78.8°F; the coldest day will be next Sunday, with a maximum of 59°F.
Updated: Oct 18, 2026 @ 04:04:21 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, conditions will remain bright with clear skies.
Tomorrow, the highest temperature will be 69.8°F, while the lowest temperature will be 39.2°F.
Tomorrow, the maximum temperature will be notably higher than the average highest temperature of 59.7°F in October. The lowest temperature will be in line with the average low of 42.4°F.
Tomorrow, the maximum temperature will be notably higher than the average highest temperature of 59.7°F in October. The lowest temperature will be in line with the average low of 42.4°F.
On Sunday, in Harrison, sunrise will be at 7:52 am and sunset at 6:46 pm (CDT).
In Harrison, the length of the day tomorrow will be 10h and 54min.
