Weather forecast for 10 daysErwin, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 12mphS 179°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:49 am CDT
- Sunset: 6:40 pm CDT
- details ▼
Tomorrow, on Sunday, expect sunny weather with a crisp, clear sky.
Substantial temperature fluctuations from a high of a breezy 66.2°F to a low of a wintry 39.2°F are expected.
Tomorrow, the forecasted high of 66.2°F is expected to reflect September's average high of 71.6°F.
Sunrise will be at 7:49 am and sunset at 6:40 pm; tomorrow's daylight will last for 10h and 52min.
Substantial temperature fluctuations from a high of a breezy 66.2°F to a low of a wintry 39.2°F are expected.
Tomorrow, the forecasted high of 66.2°F is expected to reflect September's average high of 71.6°F.
Sunrise will be at 7:49 am and sunset at 6:40 pm; tomorrow's daylight will last for 10h and 52min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 73°C.
Coldest day: Sunday 25.10. 59°C.
Coldest day: Sunday 25.10. 59°C.
Chance of precipitation
Highest chance: Saturday 24.10. 59%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 41°F
Mostly Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 19mphS 190°
- Humidity: 58%
- UV index: 0
- Sunrise: 7:47 am CDT
- Sunset: 6:42 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 12mphS 179°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:49 am CDT
- Sunset: 6:40 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 43°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphE 99°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:50 am CDT
- Sunset: 6:38 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 46°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 16mphSSE 165°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:51 am CDT
- Sunset: 6:37 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 45°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 7mphSE 145°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:53 am CDT
- Sunset: 6:35 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 73°F
- 55°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 12mphSSE 150°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:54 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 57°F
Partly Cloudy / Wind
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 23mphSSE 161°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:55 am CDT
- Sunset: 6:32 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 66°F
- 43°F
Showers
- Precip. probability: 59%
- Precipitation: 0.28"
- Wind: 17mphSSW 206°
- Humidity: 68%
- UV index: 2
- Sunrise: 7:56 am CDT
- Sunset: 6:30 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 59°F
- 45°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 10mphNNW 338°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:58 am CDT
- Sunset: 6:29 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 61°F
- 46°F
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 12mphSE 136°
- Humidity: 72%
- UV index: 3
- Sunrise: 7:59 am CDT
- Sunset: 6:27 pm CDT
- details ▼
Models point to a combination of dry and sunny, overcast and rain-filled weather is anticipated.
With a probability of 59%, rainfall is forecasted only for next Saturday. Forecasted precipitation will be light at 0.28".
The temperature will vary considerably in the upcoming period. Maximum temperatures are forecasted between 59°F and 73.4°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 and Friday, with the highest temperature of 73.4°F, will be the warmest days in Erwin; with the highest temperature of 59°F, next Sunday will be the coldest day.
With a probability of 59%, rainfall is forecasted only for next Saturday. Forecasted precipitation will be light at 0.28".
The temperature will vary considerably in the upcoming period. Maximum temperatures are forecasted between 59°F and 73.4°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 and Friday, with the highest temperature of 73.4°F, will be the warmest days in Erwin; with the highest temperature of 59°F, next Sunday will be the coldest day.
Updated: Oct 17, 2026 @ 22:48:56 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
Tomorrow, in Erwin, sunshine and minimal clouds are in the outlook.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 39.2°F.
The maximum temperature tomorrow will be notably higher than the average highest temperature of 54.3°F in October. The lowest temperature tomorrow will be in line with the average low temperature.
The maximum temperature tomorrow will be notably higher than the average highest temperature of 54.3°F in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Erwin, sunrise will be at 7:49 am and sunset at 6:40 pm (CDT).
In Erwin, the length of the day tomorrow will be 10h and 52min.
