Buffalo Gap, SD Weather Forecast & Alerts

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

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Current Conditions — Buffalo Gap, SD

CUSTER (KCUT)

Clear

39.2 F
Humidity:45%
Wind Speed:W 10.4 G 17.3 mph
Barometer: in
Dewpoint:19.4 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:32.5 F
Apr 23 2026, 05:40 AM MDT
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5-Day Forecast — Buffalo Gap, SD

Thursday

High 59 °F
Snow Likely
Thursday
Night
Low 32 °F
Chance of Snow
Friday

High 50 °F
Forecast Missing
Friday
Night
Low 30 °F
Forecast Missing
Saturday

High 50 °F
Forecast Missing
Saturday
Night
Low 32 °F
Forecast Missing
Sunday

High 46 °F
Forecast Missing
Sunday
Night
Low 30 °F
Forecast Missing
Monday

High 50 °F
Forecast Missing

Detailed Forecast — Buffalo Gap, SD

Thursday
Snow Likely. High near 59°F. Wind 12 to 31 mph, with gusts as high as 45 mph.
Thursday Night
Chance of Snow. Low around 32°F. Wind 8 to 10 mph, with gusts as high as 20 mph.
Friday
Snow Likely. High near 50°F. Wind 10 to 13 mph, with gusts as high as 23 mph.
Friday Night
Forecast Missing. Low around 30°F. Wind 8 to 12 mph, with gusts as high as 20 mph.
Saturday
Forecast Missing. High near 50°F. Wind 10 to 13 mph, with gusts as high as 24 mph.
Saturday Night
Forecast Missing. Low around 32°F. Wind 13 to 15 mph, with gusts as high as 25 mph.
Sunday
Forecast Missing. High near 46°F. Wind 18 to 21 mph, with gusts as high as 35 mph.
Sunday Night
Forecast Missing. Low around 30°F. Wind 5 to 7 mph, with gusts as high as 15 mph.
Monday
Forecast Missing. High near 50°F. Wind 7 to 10 mph, with gusts as high as 17 mph.
Monday Night
Forecast Missing. Low around 30°F. Wind 1 to 2 mph, with gusts as high as 8 mph.
Tuesday
Forecast Missing. High near 59°F. Wind 7 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
Forecast Missing. Low around 35°F. Wind 5 to 6 mph, with gusts as high as 10 mph.
Wednesday
Forecast Missing. High near 62°F. Wind 12 to 14 mph, with gusts as high as 23 mph.
SD Radar
Current Radar • SD
Day 1 Outlook • April 23, 2026

Observation History — Buffalo Gap, 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)
05:40 AM MDT W 10.4 G 17.3 10.00 Clear -- 39.2 19.4 45% 32.5 NA M
05:35 AM MDT W 9.2 10.00 Clear -- 39.2 19.4 45% 33.1 NA M
05:30 AM MDT 10.4 G 16.1 10.00 Clear -- 39.2 19.4 45% 32.5 NA M
05:20 AM MDT 11.5 G 18.4 10.00 Clear -- 39.2 19.4 45% 32.0 NA M
05:15 AM MDT 10.4 G 16.1 10.00 Clear -- 39.2 19.4 45% 32.5 NA M
05:10 AM MDT 10.4 G 16.1 10.00 Clear -- 39.2 19.4 45% 32.5 NA M
05:00 AM MDT 16.1 G 31.1 10.00 Clear -- 39.2 19.4 45% 30.6 NA M
04:50 AM MDT 15.0 G 20.7 10.00 Clear -- 39.2 19.4 45% 30.7 NA M
04:40 AM MDT 8.1 10.00 Clear -- 39.2 19.4 45% 33.6 NA M
04:35 AM MDT SW 8.1 10.00 Clear -- 39.2 19.4 45% 33.6 NA M
04:30 AM MDT 5.7 10.00 Clear -- 39.2 19.4 45% 35.1 NA M
04:20 AM MDT 12.7 G 18.4 10.00 Clear -- 41.0 19.4 42% 33.8 NA M
04:15 AM MDT 8.1 10.00 Clear -- 41.0 19.4 42% 35.8 NA M
04:10 AM MDT 10.00 Clear -- 41.0 19.4 42% NA NA M
03:53 AM MDT 12.8 G 23.0 10.00 Clear -- 42.1 19.0 39% 35.2 NA M
03:45 AM MDT 10.4 G 16.1 10.00 Clear -- 42.8 19.4 39% 37.0 NA M
03:35 AM MDT W 12.7 10.00 Clear -- 42.8 19.4 39% 36.1 NA M
03:20 AM MDT W 17.3 10.00 Clear -- 44.6 19.4 36% 37.2 NA M
03:10 AM MDT G 29.9 10.00 Clear -- 44.6 19.4 36% NA NA M
03:05 AM MDT 13.8 G 21.9 10.00 Clear -- 44.6 19.4 36% 38.1 NA M
02:50 AM MDT W 17.3 G 27.6 10.00 Clear -- 44.6 19.4 36% 37.2 NA M
02:35 AM MDT W 18.4 10.00 Clear -- 44.6 17.6 34% 36.9 NA M
02:20 AM MDT G 46.0 10.00 Clear -- 44.6 17.6 34% NA NA M
02:15 AM MDT W 19.6 G 25.3 10.00 Clear and Windy -- 44.6 17.6 34% 36.7 NA M

Regional Weather Observation

CUSTER (KCUT)

Clear
39.2 F

(KUNR)


F

RAPID CITY (KRAP)

Clear
51.8 F

ELLSWORTH AFB (KRCA)

Clear
54.0 F

NEWCASTLE MONDEL (KECS)

Clear
39.2 F

SPEARFISH/CLYDE (KSPF)

Clear
48.2 F
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