Fairfax, SD 14 Day Weather - 57335 WeatherWorld.com

Feedback E-mail the Weather

Quick Weather Clicks

Fairfax, SD Weather - 14-Day Weather Forecast

Current Conditions

Settings
Fairfax SD Weather - Light Rain - 71°F
Light Rain
71°F
Updated 3:54 am
Feels Like 72°F
Humidity 100%
Wind ESE 13 mph
Barometer  29.86 in
Dew Point 71°F
Fairfax SD Weather - Light Rain - 22°C
Light Rain
22°C
Updated 3:54 am
Feels Like 22°C
Humidity 100%
Wind ESE 21 km/h
Barometer  101.1 kPa
Dew Point 22°C
Fairfax, SD Weather and Current Conditionsfairfax sd weather forecast

Fairfax, SD Weather Forecast

Fairfax South Dakota WeatherFairfax, South Dakota Weather Weather Forecast
14 Day API Fairfax, SD Weather Forecast. Note: Our 7 day Fairfax, South Dakota weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Fairfax, SD Weather Forecast Dated: 354 AM Tue Sep 08 2026
Expect a mild stretch with plenty of sunshine and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Tuesday, September 8, 2026

Mid-Morning
Fairfax Weather - 2026-09-08 - Morning - Heavy Rain
74°F 23°C
Heavy Rain
Mid-Afternoon
Fairfax Weather - 2026-09-08 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Fairfax Weather - 2026-09-08 - Evening - Overcast
80°F 27°C
Overcast
Warm and summery near 81°F 27°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds turning from the WNW to the NNE at 5 mph 8 km/h.

Wednesday, September 9, 2026

Mid-Morning
Fairfax Weather - 2026-09-09 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Fairfax Weather - 2026-09-09 - Afternoon - Partly Cloudy
80°F 26°C
Partly Cloudy
Early-Evening
Fairfax Weather - 2026-09-09 - Evening - Sunny
76°F 24°C
Sunny
Balmy with temperatures reaching 80°F 26°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds switching from the NNW to the NNE at 8 mph 12 km/h.

Thursday, September 10, 2026

Mid-Morning
Fairfax Weather - 2026-09-10 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Fairfax Weather - 2026-09-10 - Afternoon - Sunny
87°F 30°C
Sunny
Early-Evening
Fairfax Weather - 2026-09-10 - Evening - Sunny
89°F 32°C
Sunny
Quite warm around 87°F 30°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds S at 17 mph 27 km/h. Gusts up to 29 mph 47 km/h.

Friday, September 11, 2026

Mid-Morning
Fairfax Weather - 2026-09-11 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Fairfax Weather - 2026-09-11 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Fairfax Weather - 2026-09-11 - Evening - Sunny
75°F 24°C
Sunny
Warm temperatures up to 81°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds out of the NNE at 15 mph 24 km/h. Gusts up to 27 mph 44 km/h.

Saturday, September 12, 2026

Mid-Morning
Fairfax Weather - 2026-09-12 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Fairfax Weather - 2026-09-12 - Afternoon - Overcast
84°F 29°C
Overcast
Early-Evening
Fairfax Weather - 2026-09-12 - Evening - Overcast
87°F 30°C
Overcast
Very warm with a high of 84°F 29°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds shifting from the NNW to the SE at 10 mph 16 km/h.

Sunday, September 13, 2026

Mid-Morning
Fairfax Weather - 2026-09-13 - Morning - Cloudy
71°F 22°C
Cloudy
Mid-Afternoon
Fairfax Weather - 2026-09-13 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Fairfax Weather - 2026-09-13 - Evening - Overcast
69°F 21°C
Overcast
Pleasant near 78°F 26°C, overcast throughout the day, with steady humidity and steady pressure. Winds increasing from the SW at 2 mph 3 km/h to NNW at 11 mph 17 km/h.

Monday, September 14, 2026

Mid-Morning
Fairfax Weather - 2026-09-14 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Fairfax Weather - 2026-09-14 - Afternoon - Sunny
57°F 14°C
Sunny
Early-Evening
Fairfax Weather - 2026-09-14 - Evening - Sunny
50°F 10°C
Sunny
Chilly near 57°F 14°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the NW to the NNW at 17 mph 28 km/h. Gusts up to 27 mph 42 km/h.

Tuesday, September 15, 2026

Mid-Morning
Fairfax Weather - 2026-09-15 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Fairfax Weather - 2026-09-15 - Afternoon - Partly Cloudy
61°F 16°C
Partly Cloudy
Early-Evening
Fairfax Weather - 2026-09-15 - Evening - Sunny
62°F 17°C
Sunny
Cool with a high near 61°F 16°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds moving from the NW to the SSE at 4 mph 6 km/h.

Wednesday, September 16, 2026

Mid-Morning
Fairfax Weather - 2026-09-16 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Fairfax Weather - 2026-09-16 - Afternoon - Partly Cloudy
72°F 22°C
Partly Cloudy
Early-Evening
Fairfax Weather - 2026-09-16 - Evening - Cloudy
66°F 19°C
Cloudy
Mild temperatures up to 72°F 22°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds S at 10 mph 16 km/h. Gusts up to 24 mph 38 km/h.

Thursday, September 17, 2026

Mid-Morning
Fairfax Weather - 2026-09-17 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Fairfax Weather - 2026-09-17 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Fairfax Weather - 2026-09-17 - Evening - Sunny
79°F 26°C
Sunny
Mild with a high of 79°F 26°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the SSW to the S at 15 mph 23 km/h. Gusts up to 27 mph 44 km/h.

Friday, September 18, 2026

Mid-Morning
Fairfax Weather - 2026-09-18 - Morning - Scattered Showers
57°F 14°C
Scattered Showers
Mid-Afternoon
Fairfax Weather - 2026-09-18 - Afternoon - Scattered Showers
46°F 8°C
Scattered Showers
Early-Evening
Fairfax Weather - 2026-09-18 - Evening - Light Showers
46°F 8°C
Light Showers
Chilly near 46°F 8°C, scattered downpours possible, with increasing humidity and barometric pressure rising. Winds tapering down from ESE 21 mph 34 km/h to NW 12 mph 19 km/h. Gusts up to 24 mph 38 km/h.

Saturday, September 19, 2026

Mid-Morning
Fairfax Weather - 2026-09-19 - Morning - Overcast
44°F 7°C
Overcast
Mid-Afternoon
Fairfax Weather - 2026-09-19 - Afternoon - Sunny
57°F 14°C
Sunny
Early-Evening
Fairfax Weather - 2026-09-19 - Evening - Sunny
57°F 14°C
Sunny
Crisp with a high near 57°F 14°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the SE to the SSE at 8 mph 12 km/h.

Sunday, September 20, 2026

Mid-Morning
Fairfax Weather - 2026-09-20 - Morning - Partly Cloudy
51°F 11°C
Partly Cloudy
Mid-Afternoon
Fairfax Weather - 2026-09-20 - Afternoon - Sunny
69°F 21°C
Sunny
Early-Evening
Fairfax Weather - 2026-09-20 - Evening - Sunny
71°F 22°C
Sunny
Enjoyable around 69°F 21°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling. Winds moving from the S to the SE at 9 mph 14 km/h.

Monday, September 21, 2026

Mid-Morning
Fairfax Weather - 2026-09-21 - Morning - Sunny
62°F 17°C
Sunny
Mid-Afternoon
Fairfax Weather - 2026-09-21 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Fairfax Weather - 2026-09-21 - Evening - Sunny
84°F 29°C
Sunny
Warm temperatures up to 84°F 29°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the SSW to the SSE at 11 mph 18 km/h. Gusts up to 24 mph 39 km/h.

Trending Headlines

Fairfax, SD Weather Radar Map

Use the map search tool if you want to place a location marker on the radar map...

Fairfax, SD 7 Day Weather

National Two Day Weather Forecast


E-mail the Fairfax Weather Forecast

Voice your opinion or tell us about page issues...

Weather by the Numbers

Tue, 8th
Fairfax SD Weather - Tuesday, Sep 8, 2026 - Overcast
Hi: 86°F 30°C
Lo: 71°F 22°C
Sunrise 07:07 AM
Sunset 07:57 PM
Wind NNW 15 mph24 km/h
Dew Point 39°F4°C
uv Index 4
Barometric Pressure 29.91 in1013 mb
POP 9% *
Humidity 23%
Wed, 9th
Fairfax SD Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 80°F 26°C
Lo: 63°F 17°C
Sunrise 07:08 AM
Sunset 07:56 PM
Wind NNW 14 mph22 km/h
Dew Point 45°F7°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 36%
Thu, 10th
Fairfax SD Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 92°F 33°C
Lo: 64°F 18°C
Sunrise 07:10 AM
Sunset 07:54 PM
Wind S 17 mph28 km/h
Dew Point 43°F6°C
uv Index 5
Barometric Pressure 29.88 in1012 mb
POP 0% *
Humidity 29%
Fri, 11th
Fairfax SD Weather - Friday, Sep 11, 2026 - Sunny
Hi: 85°F 29°C
Lo: 62°F 17°C
Sunrise 07:11 AM
Sunset 07:52 PM
Wind NNE 20 mph32 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 29.77 in1008 mb
POP 1% *
Humidity 34%
Sat, 12th
Fairfax SD Weather - Saturday, Sep 12, 2026 - Partly Cloudy
Hi: 88°F 31°C
Lo: 55°F 13°C
Sunrise 07:12 AM
Sunset 07:50 PM
Wind SE 13 mph21 km/h
Dew Point 44°F6°C
uv Index 6
Barometric Pressure 29.8 in1009 mb
POP 8% *
Humidity 34%
Sun, 13th
Fairfax SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 82°F 28°C
Lo: 60°F 16°C
Sunrise 07:13 AM
Sunset 07:49 PM
Wind S 1 mph1 km/h
Dew Point 61°F16°C
uv Index 5
Barometric Pressure 29.59 in1002 mb
POP 15% *
Humidity 62%
Mon, 14th
Fairfax SD Weather - Monday, Sep 14, 2026 - Sunny
Hi: 57°F 14°C
Lo: 43°F 6°C
Sunrise 07:14 AM
Sunset 07:47 PM
Wind NW 24 mph39 km/h
Dew Point 31°F-1°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 44%
Tue, 15th
Fairfax SD Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 63°F 17°C
Lo: 44°F 6°C
Sunrise 07:15 AM
Sunset 07:45 PM
Wind NW 8 mph13 km/h
Dew Point 30°F-1°C
uv Index 4
Barometric Pressure 30.33 in1027 mb
POP 3% *
Humidity 41%
Wed, 16th
Fairfax SD Weather - Wednesday, Sep 16, 2026 - Partly Cloudy
Hi: 73°F 23°C
Lo: 52°F 11°C
Sunrise 07:16 AM
Sunset 07:43 PM
Wind SSW 8 mph13 km/h
Dew Point 33°F1°C
uv Index 5
Barometric Pressure 30.27 in1025 mb
POP 4% *
Humidity 31%
Thu, 17th
Fairfax SD Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 81°F 27°C
Lo: 56°F 13°C
Sunrise 07:17 AM
Sunset 07:41 PM
Wind SSW 18 mph29 km/h
Dew Point 46°F8°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 43%
Fri, 18th
Fairfax SD Weather - Friday, Sep 18, 2026 - Overcast
Hi: 73°F 23°C
Lo: 44°F 7°C
Sunrise 07:18 AM
Sunset 07:40 PM
Wind WSW 20 mph32 km/h
Dew Point 43°F6°C
uv Index 2
Barometric Pressure 30.15 in1021 mb
POP 23% *
Humidity 77%
Sat, 19th
Fairfax SD Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 58°F 15°C
Lo: 44°F 7°C
Sunrise 07:19 AM
Sunset 07:38 PM
Wind NE 5 mph8 km/h
Dew Point 26°F-4°C
uv Index 4
Barometric Pressure 30.45 in1031 mb
POP 2% *
Humidity 39%
Sun, 20th
Fairfax SD Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 76°F 24°C
Lo: 47°F 9°C
Sunrise 07:21 AM
Sunset 07:36 PM
Wind S 15 mph25 km/h
Dew Point 30°F-1°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 32%
Mon, 21st
Fairfax SD Weather - Monday, Sep 21, 2026 - Sunny
Hi: 88°F 31°C
Lo: 58°F 14°C
Sunrise 07:22 AM
Sunset 07:34 PM
Wind SSE 7 mph11 km/h
Dew Point 42°F6°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 32%
* POP = Probability of Precipitation. Data for 12:00 PM.