Weather forecast for 10 daysFairfax, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 37°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphSSW 196°
- Humidity: 43%
- UV index: 4
- Sunrise: 7:53 am CDT
- Sunset: 6:48 pm CDT
- details ▼
Today, skies are expected to be clear and full of sunshine.
A notable disparity in temperature is anticipated, reaching up to a maximum of a pleasant 69.8°F and falling to a minimum of a wintry 37.4°F.
The forecast high of 69.8°F aligns more closely with September's typical high of 76.3°F than with October's usual 59.7°F.
Sunrise will be at 7:53 am and sunset at 6:48 pm; the daylight will last for 10h and 55min.
A notable disparity in temperature is anticipated, reaching up to a maximum of a pleasant 69.8°F and falling to a minimum of a wintry 37.4°F.
The forecast high of 69.8°F aligns more closely with September's typical high of 76.3°F than with October's usual 59.7°F.
Sunrise will be at 7:53 am and sunset at 6:48 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. 59°C.
Coldest day: Sunday 25.10. 59°C.
Chance of precipitation
Highest chance: 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 70°F
- 37°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphSSW 196°
- Humidity: 43%
- UV index: 4
- Sunrise: 7:53 am CDT
- Sunset: 6:48 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 41°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 8mphENE 77°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:54 am CDT
- Sunset: 6:46 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 46°F
Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 14mphS 170°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:55 am CDT
- Sunset: 6:45 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 45°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 6mphWNW 298°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:56 am CDT
- Sunset: 6:43 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 11mphSSE 159°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:57 am CDT
- Sunset: 6:41 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 57°F
Mostly Cloudy / Wind
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 21mphSSE 166°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:59 am CDT
- Sunset: 6:40 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 64°F
- 43°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 13mphWNW 283°
- Humidity: 58%
- UV index: 3
- Sunrise: 8:00 am CDT
- Sunset: 6:38 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 59°F
- 45°F
Mostly Sunny
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 9mphENE 75°
- Humidity: 68%
- UV index: 3
- Sunrise: 8:01 am CDT
- Sunset: 6:37 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 64°F
- 48°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 12mphSSE 153°
- Humidity: 71%
- UV index: 2
- Sunrise: 8:02 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 64°F
- 45°F
Partly Cloudy
- Precip. probability: 23%
- Precipitation: 0"
- Wind: 14mphSSE 162°
- Humidity: 64%
- UV index: 3
- Sunrise: 8:04 am CDT
- Sunset: 6:34 pm CDT
- details ▼
It is expected that a combination of cloudy and bright weather is anticipated.
Rainfall is not forecasted in Fairfax in the upcoming period.
Substantial differences in temperature are forecasted across the forecast period. Highs will range from 59°F to 77°F, while the variation in nighttime lows will be also notably wide, as the lowest temperatures will be recorded between 37.4°F and 57.2°F.
The warmest days will be Thursday and Friday, with a maximum of 77°F; expect the coldest day on next Sunday with a high of 59°F.
Rainfall is not forecasted in Fairfax in the upcoming period.
Substantial differences in temperature are forecasted across the forecast period. Highs will range from 59°F to 77°F, while the variation in nighttime lows will be also notably wide, as the lowest temperatures will be recorded between 37.4°F and 57.2°F.
The warmest days will be Thursday and Friday, with a maximum of 77°F; expect the coldest day on next Sunday with a high of 59°F.
Updated: Oct 18, 2026 @ 12:16:10 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, in Fairfax, sunny and dry conditions are anticipated.
Today, the highest temperature will be 69.8°F, while the lowest temperature will be 37.4°F.
Today, the highest temperature will be significantly higher than the average maximum of 59.7°F in October. The lowest temperature today will be a few degrees lower than the average low temperature.
Today, the highest temperature will be significantly higher than the average maximum of 59.7°F in October. The lowest temperature today will be a few degrees lower than the average low temperature.
On Sunday, in Fairfax, sunrise will be at 7:53 am and sunset at 6:48 pm (CDT).
Today, the daylight will last for 10h and 55min.
