Weather forecast for 10 daysNapa Junction, SD

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphS 189°
  • Humidity: 45%
  • UV index: 4
  • Sunrise: 7:47 am CDT
  • Sunset: 6:42 pm CDT
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Today, in Napa Junction, conditions will remain bright with clear skies.
Significant temperature variations are predicted, soaring to a maximum of a pleasant 69.8°F and descending to a minimum of an icy 41°F.
The day's peak of 69.8°F reflects September's seasonal pattern more than October's.
Sunrise will be at 7:47 am and sunset at 6:42 pm; the daylight will last for 10h and 55min.

10-day overview

Daily temperatures

Warmest period: Thursday - Friday 77°C.
Coldest day: Sunday 25.10. 61°C.

Chance of precipitation

Highest chance: Saturday 34%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphS 189°
  • Humidity: 45%
  • UV index: 4
  • Sunrise: 7:47 am CDT
  • Sunset: 6:42 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 10mphESE 121°
  • Humidity: 61%
  • UV index: 4
  • Sunrise: 7:48 am CDT
  • Sunset: 6:41 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 50°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 15mphSSE 155°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:49 am CDT
  • Sunset: 6:39 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 6mphS 178°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 7:50 am CDT
  • Sunset: 6:37 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 11mphSE 141°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:52 am CDT
  • Sunset: 6:36 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 61°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 15%
  • Precipitation: 0.08"
  • Wind: 21mphSSE 157°
  • Humidity: 54%
  • UV index: 2
  • Sunrise: 7:53 am CDT
  • Sunset: 6:34 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 70°F
  • 46°F
Few Showers
Few Showers
  • Precip. probability: 34%
  • Precipitation: 0.08"
  • Wind: 14mphSW 227°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:54 am CDT
  • Sunset: 6:33 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 14%
  • Precipitation: 0.04"
  • Wind: 9mphNE 42°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:55 am CDT
  • Sunset: 6:31 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 13mphSE 136°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 7:57 am CDT
  • Sunset: 6:30 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 64°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 15mphSSE 155°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 7:58 am CDT
  • Sunset: 6:29 pm CDT
  • ▼
Models point to a combination of overcast, sunny and damp weather is forecasted.
Rainfall is predicted for Friday through next Sunday. The days with the most rainfall will be Friday and Saturday, with minimal precipitation of 0.08".
There will be a considerable variation in temperature in the next ten days. The maximum temperature will vary between 60.8°F and 77°F, while there will be also a marked difference in overnight low temperatures, as temperatures overnight will fluctuate from 41°F up to 60.8°F.
The warmest days will be Thursday and Friday, with a maximum of 77°F; the coldest day will be next Sunday, with a maximum of 60.8°F.
Updated: Oct 18, 2026 @ 12:33:05 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Napa Junction, expect bright skies and plenty of sunshine.

Today, the highest temperature in Napa Junction will be 69.8°F, while the lowest temperature will be 41°F.
Today, the highest temperature will be uncommonly higher than the average maximum of 59.4°F in October. Today, the lowest temperature will be in line with the average low temperature.

On Sunday, in Napa Junction, sunrise will be at 7:47 am and sunset at 6:42 pm (CDT).

In Napa Junction, the length of the day today will be 10h and 55min.