Fairfax, SD Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Fairfax, SD.

0 Active Alerts for Fairfax

✅
No active weather alerts for Fairfax at this time.
Subscribe to receive instant notifications when alerts are issued.

Current Conditions — Fairfax, SD

CHAMBERLAIN (K9V9)

Fog/Mist

41.2 F
Humidity:100%
Wind Speed: 11.4 mph
Barometer: in
Dewpoint:41.2 F
Visibility:3.00 mi
Precip:--
Heat Index:NA
Wind Chill:34.5 F
Apr 27 2026, 06:35 AM CDT
Severe Weather Alerts
Severe Weather
 		Daily Weather Forecast
Daily Forecast
 		Observation Alert Monitoring
Observations
 		Storm Report Monitoring
Storm Reports

5-Day Forecast — Fairfax, SD

Monday

High 46 °F
Rain Showers Likely
Monday
Night
Low 33 °F
Mostly Cloudy
Tuesday

High 50 °F
Slight Chance of Rain Showers
Tuesday
Night
Low 35 °F
Mostly Cloudy
Wednesday

High 62 °F
Partly Sunny
Wednesday
Night
Low 35 °F
Mostly Clear
Thursday

High 59 °F
Slight Chance of Rain Showers
Thursday
Night
Low 35 °F
Mostly Clear
Friday

High 66 °F
Mostly Sunny

Detailed Forecast — Fairfax, SD

Monday
Rain Showers Likely. High near 46°F. Wind 20 to 29 mph, with gusts as high as 38 mph.
Monday Night
Mostly Cloudy. Low around 33°F. Wind 7 to 21 mph, with gusts as high as 32 mph.
Tuesday
Slight Chance of Rain Showers. High near 50°F. Wind 6 to 7 mph, with gusts as high as 12 mph.
Tuesday Night
Mostly Cloudy. Low around 35°F. Wind around 6 mph, with gusts as high as 9 mph.
Wednesday
Partly Sunny. High near 62°F. Wind 9 to 12 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly Clear. Low around 35°F. Wind around 5 mph, with gusts as high as 9 mph.
Thursday
Slight Chance of Rain Showers. High near 59°F. Wind 12 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Mostly Clear. Low around 35°F. Wind around 2 mph, with gusts as high as 5 mph.
Friday
Mostly Sunny. High near 66°F. Wind 7 to 8 mph, with gusts as high as 13 mph.
Friday Night
Mostly Clear. Low around 41°F. Wind around 8 mph, with gusts as high as 15 mph.
Saturday
Mostly Sunny. High near 71°F. Wind 13 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Partly Cloudy. Low around 44°F. Wind around 9 mph, with gusts as high as 15 mph.
Sunday
Partly Sunny. High near 73°F. Wind 12 to 14 mph, with gusts as high as 20 mph.
SD Radar
Current Radar • SD
Day 1 Outlook • April 27, 2026

Observation History — Fairfax, SD

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
06:35 AM CDT 11.4 3.00 Fog/Mist -- 41.2 41.2 100% 34.5 NA M
06:15 AM CDT 11.4 4.00 Fog/Mist -- 41.2 41.2 100% 34.5 NA M
05:55 AM CDT 10.3 4.00 Fog/Mist -- 41.2 41.2 100% 35.1 NA 29.71 1006.1
05:35 AM CDT 11.4 G 16.1 4.00 Light Drizzle -- 41.4 41.4 100% 34.7 NA 29.70 1005.8
05:15 AM CDT 10.3 G 17.2 4.00 Drizzle -- 41.5 41.5 100% 35.4 NA 29.70 1005.8
04:55 AM CDT 9.2 10.00 Light Drizzle -- 41.5 41.5 100% 36.0 NA 29.70 1005.8
04:35 AM CDT 10.3 10.00 Drizzle -- 41.9 41.9 100% 36.0 NA M
04:15 AM CDT 12.8 G 16.1 10.00 Drizzle -- 42.1 42.1 100% 35.2 NA 29.69 1005.4
03:55 AM CDT 10.3 G 17.2 10.00 Light Rain -- 42.3 42.3 100% 36.3 NA 29.69 1005.4
03:35 AM CDT 9.2 10.00 Cloudy -- 42.4 42.4 100% 37.0 NA 29.69 1005.4
03:15 AM CDT 10.3 10.00 Cloudy -- 42.8 42.8 100% 37.0 NA 29.70 1005.8
02:55 AM CDT 9.2 7.00 Cloudy -- NULL % NA NA 29.69 1005.4
02:35 AM CDT 9.2 7.00 Cloudy -- NULL % NA NA 29.70 1005.8
02:15 AM CDT 10.3 7.00 Light Drizzle -- NULL % NA NA 29.70 1005.8
01:55 AM CDT 9.2 10.00 Drizzle -- NULL % NA NA 29.71 1006.1
01:35 AM CDT 8.1 10.00 Cloudy -- NULL % NA NA 29.72 1006.4
01:15 AM CDT 8.1 10.00 Cloudy -- NULL % NA NA 29.72 1006.4
12:55 AM CDT NE 6.9 10.00 Cloudy -- NULL % NA NA 29.73 1006.8
12:35 AM CDT 6.9 10.00 Cloudy -- NULL % NA NA 29.73 1006.8
12:15 AM CDT NE 9.2 10.00 Cloudy -- NULL % NA NA 29.73 1006.8
11:55 PM CDT NE 9.2 10.00 Light Drizzle -- NULL % NA NA 29.73 1006.8
11:35 PM CDT NE 9.2 7.00 Rain -- NULL % NA NA 29.74 1007.1
11:15 PM CDT NE 9.2 7.00 Drizzle -- NULL % NA NA 29.75 1007.5
10:55 PM CDT NE 9.2 7.00 Drizzle -- NULL % NA NA 29.76 1007.8

Regional Weather Observation

CHAMBERLAIN (K9V9)

Fog/Mist
41.2 F

WINNER (KICR)

Light Rain and Fog/Mist
39.2 F

MITCHELL (KMHE)

Light Rain
44.6 F

O NEILL (KONL)

Light Drizzle
44.1 F

AINSWORTH MUNICI (KANW)

Cloudy
41.4 F

VALENTINE (KVTN)

Cloudy
39.2 F
🔔    Sign-up to receive daily weather forecasts by email or text - subscribe