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Buffalo County SD Weather - Clear - 55°F
Clear
55°F
Updated 12:44 am
Feels Like 47°F
Humidity 46%
Wind S 9 mph
Barometer  29.99 in
Dew Point 35°F
Buffalo County SD Weather - Clear - 13°C
Clear
13°C
Updated 12:44 am
Feels Like 8°C
Humidity 46%
Wind S 14 km/h
Barometer  101.5 kPa
Dew Point 2°C
Buffalo County, SD Weather and Current Conditionsbuffalo county sd weather forecast

Buffalo County, SD Weather Forecast

Buffalo County South Dakota WeatherBuffalo County, South Dakota Weather Weather Forecast
14 day API Buffalo County, SD weather forecast. Note. Our 7-day weather forecast for Buffalo County, South Dakota is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Buffalo County, SD Weather Forecast Dated: 1244 AM Sun Oct 18 2026
Expect a mild stretch with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Sunday, October 18, 2026

Mid-Morning
Buffalo County Weather - 2026-10-18 - Morning - Sunny
50°F 10°C
Sunny
Mid-Afternoon
Buffalo County Weather - 2026-10-18 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-18 - Evening - Sunny
62°F 17°C
Sunny
Pleasant near 72°F 22°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the SSE to the NE at 13 mph 21 km/h. Gusts up to 25 mph 40 km/h.

Monday, October 19, 2026

Mid-Morning
Buffalo County Weather - 2026-10-19 - Morning - Sunny
48°F 9°C
Sunny
Mid-Afternoon
Buffalo County Weather - 2026-10-19 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-19 - Evening - Sunny
59°F 15°C
Sunny
Mildly cool near 67°F 19°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the ENE to the ESE at 9 mph 13 km/h.

Tuesday, October 20, 2026

Mid-Morning
Buffalo County Weather - 2026-10-20 - Morning - Sunny
50°F 10°C
Sunny
Mid-Afternoon
Buffalo County Weather - 2026-10-20 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-20 - Evening - Sunny
66°F 19°C
Sunny
Enjoyable around 72°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds SSE at 16 mph 25 km/h. Gusts up to 27 mph 43 km/h.

Wednesday, October 21, 2026

Mid-Morning
Buffalo County Weather - 2026-10-21 - Morning - Sunny
56°F 13°C
Sunny
Mid-Afternoon
Buffalo County Weather - 2026-10-21 - Afternoon - Sunny
76°F 24°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-21 - Evening - Sunny
68°F 20°C
Sunny
Mild temperatures up to 76°F 24°C, sunny throughout the day, with lower humidity and steady pressure.

Thursday, October 22, 2026

Mid-Morning
Buffalo County Weather - 2026-10-22 - Morning - Cloudy
58°F 15°C
Cloudy
Mid-Afternoon
Buffalo County Weather - 2026-10-22 - Afternoon - Cloudy
79°F 26°C
Cloudy
Early-Evening
Buffalo County Weather - 2026-10-22 - Evening - Overcast
71°F 22°C
Overcast
Mild with a high of 79°F 26°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the ESE to the SE at 11 mph 17 km/h. Gusts up to 25 mph 41 km/h.

Friday, October 23, 2026

Mid-Morning
Buffalo County Weather - 2026-10-23 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Buffalo County Weather - 2026-10-23 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Buffalo County Weather - 2026-10-23 - Evening - Overcast
74°F 24°C
Overcast
Pleasant near 78°F 26°C, overcast throughout the day, with lower humidity and steady pressure. Winds blowing from the SSW at 11 mph 18 km/h. Gusts up to 25 mph 39 km/h.

Saturday, October 24, 2026

Mid-Morning
Buffalo County Weather - 2026-10-24 - Morning - Scattered Showers
50°F 10°C
Scattered Showers
Mid-Afternoon
Buffalo County Weather - 2026-10-24 - Afternoon - Scattered Showers
46°F 8°C
Scattered Showers
Early-Evening
Buffalo County Weather - 2026-10-24 - Evening - Scattered Showers
44°F 6°C
Scattered Showers
Chilly near 46°F 8°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds decreasing from WNW 21 mph 33 km/h to NW 10 mph 16 km/h.

Sunday, October 25, 2026

Mid-Morning
Buffalo County Weather - 2026-10-25 - Morning - Sunny
40°F 5°C
Sunny
Mid-Afternoon
Buffalo County Weather - 2026-10-25 - Afternoon - Sunny
53°F 12°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-25 - Evening - Sunny
48°F 9°C
Sunny
Crisp with a high near 53°F 12°C, sunny throughout the day, with lower humidity and barometric pressure falling.

Monday, October 26, 2026

Mid-Morning
Buffalo County Weather - 2026-10-26 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Buffalo County Weather - 2026-10-26 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-26 - Evening - Sunny
57°F 14°C
Sunny
Refreshing around 65°F 18°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the SSW to the SSE at 9 mph 15 km/h.

Tuesday, October 27, 2026

Mid-Morning
Buffalo County Weather - 2026-10-27 - Morning - Overcast
49°F 10°C
Overcast
Mid-Afternoon
Buffalo County Weather - 2026-10-27 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-27 - Evening - Sunny
63°F 17°C
Sunny
Mild with a high of 68°F 20°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds blowing from the S at 11 mph 18 km/h. Gusts up to 20 mph 32 km/h.

Wednesday, October 28, 2026

Mid-Morning
Buffalo County Weather - 2026-10-28 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Buffalo County Weather - 2026-10-28 - Afternoon - Overcast
74°F 23°C
Overcast
Early-Evening
Buffalo County Weather - 2026-10-28 - Evening - Overcast
67°F 20°C
Overcast
Pleasant near 74°F 23°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the SW to the SE at 5 mph 8 km/h.

Thursday, October 29, 2026

Mid-Morning
Buffalo County Weather - 2026-10-29 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Buffalo County Weather - 2026-10-29 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-29 - Evening - Sunny
55°F 13°C
Sunny
Cool with a high near 65°F 18°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure rising. Winds shifting from the WNW to the W at 9 mph 14 km/h.

Friday, October 30, 2026

Mid-Morning
Buffalo County Weather - 2026-10-30 - Morning - Sunny
50°F 10°C
Sunny
Mid-Afternoon
Buffalo County Weather - 2026-10-30 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Buffalo County Weather - 2026-10-30 - Evening - Sunny
63°F 17°C
Sunny
Enjoyable around 68°F 20°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SE to the SSE at 11 mph 18 km/h. Gusts up to 21 mph 33 km/h.

Saturday, October 31, 2026

Mid-Morning
Buffalo County Weather - 2026-10-31 - Morning - Sunny
56°F 13°C
Sunny
Mid-Afternoon
Buffalo County Weather - 2026-10-31 - Afternoon - Partly Cloudy
68°F 20°C
Partly Cloudy
Early-Evening
Buffalo County Weather - 2026-10-31 - Evening - Overcast
55°F 13°C
Overcast
Mild temperatures up to 68°F 20°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds switching from the SSE to the WNW at 19 mph 30 km/h. Gusts up to 28 mph 46 km/h.

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Weather by the Numbers

Sun, 18th
Buffalo County SD Weather - Sunday, Oct 18, 2026 - Sunny
Hi: 72°F 22°C
Lo: 47°F 9°C
Sunrise 07:56 AM
Sunset 06:48 PM
Wind SSE 4 mph6 km/h
Dew Point 29°F-2°C
uv Index 3
Barometric Pressure 29.94 in1014 mb
POP 0% *
Humidity 26%
Mon, 19th
Buffalo County SD Weather - Monday, Oct 19, 2026 - Sunny
Hi: 67°F 20°C
Lo: 45°F 7°C
Sunrise 07:57 AM
Sunset 06:46 PM
Wind E 10 mph16 km/h
Dew Point 38°F3°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 42%
Tue, 20th
Buffalo County SD Weather - Tuesday, Oct 20, 2026 - Sunny
Hi: 73°F 23°C
Lo: 48°F 9°C
Sunrise 07:59 AM
Sunset 06:45 PM
Wind SSE 14 mph23 km/h
Dew Point 45°F7°C
uv Index 3
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 46%
Wed, 21st
Buffalo County SD Weather - Wednesday, Oct 21, 2026 - Sunny
Hi: 76°F 25°C
Lo: 53°F 12°C
Sunrise 08:00 AM
Sunset 06:43 PM
Wind SSW 6 mph9 km/h
Dew Point 52°F11°C
uv Index 3
Barometric Pressure 30 in1016 mb
POP 3% *
Humidity 55%
Thu, 22nd
Buffalo County SD Weather - Thursday, Oct 22, 2026 - Cloudy
Hi: 80°F 27°C
Lo: 56°F 13°C
Sunrise 08:01 AM
Sunset 06:42 PM
Wind SSE 9 mph14 km/h
Dew Point 54°F12°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 10% *
Humidity 52%
Fri, 23rd
Buffalo County SD Weather - Friday, Oct 23, 2026 - Patchy Rain Nearby
Hi: 80°F 27°C
Lo: 63°F 17°C
Sunrise 08:02 AM
Sunset 06:40 PM
Wind S 14 mph22 km/h
Dew Point 58°F14°C
uv Index 5
Barometric Pressure 29.74 in1007 mb
POP 15% *
Humidity 61%
Sat, 24th
Buffalo County SD Weather - Saturday, Oct 24, 2026 - Patchy Rain Nearby
Hi: 66°F 19°C
Lo: 41°F 5°C
Sunrise 08:04 AM
Sunset 06:38 PM
Wind NW 24 mph38 km/h
Dew Point 39°F4°C
uv Index 2
Barometric Pressure 30.18 in1022 mb
POP 23% *
Humidity 78%
Sun, 25th
Buffalo County SD Weather - Sunday, Oct 25, 2026 - Sunny
Hi: 55°F 13°C
Lo: 37°F 3°C
Sunrise 08:05 AM
Sunset 06:37 PM
Wind W 5 mph8 km/h
Dew Point 26°F-4°C
uv Index 3
Barometric Pressure 30.56 in1035 mb
POP 1% *
Humidity 42%
Mon, 26th
Buffalo County SD Weather - Monday, Oct 26, 2026 - Sunny
Hi: 67°F 19°C
Lo: 41°F 5°C
Sunrise 08:06 AM
Sunset 06:35 PM
Wind SSW 12 mph20 km/h
Dew Point 31°F-1°C
uv Index 4
Barometric Pressure 30.18 in1022 mb
POP 1% *
Humidity 37%
Tue, 27th
Buffalo County SD Weather - Tuesday, Oct 27, 2026 - Overcast
Hi: 71°F 22°C
Lo: 46°F 8°C
Sunrise 08:07 AM
Sunset 06:34 PM
Wind S 11 mph18 km/h
Dew Point 46°F8°C
uv Index 3
Barometric Pressure 29.85 in1011 mb
POP 6% *
Humidity 62%
Wed, 28th
Buffalo County SD Weather - Wednesday, Oct 28, 2026 - Overcast
Hi: 75°F 24°C
Lo: 52°F 11°C
Sunrise 08:09 AM
Sunset 06:32 PM
Wind WSW 9 mph14 km/h
Dew Point 38°F4°C
uv Index 4
Barometric Pressure 29.65 in1004 mb
POP 9% *
Humidity 37%
Thu, 29th
Buffalo County SD Weather - Thursday, Oct 29, 2026 - Sunny
Hi: 65°F 18°C
Lo: 50°F 10°C
Sunrise 08:10 AM
Sunset 06:31 PM
Wind NW 16 mph26 km/h
Dew Point 29°F-1°C
uv Index 5
Barometric Pressure 29.74 in1007 mb
POP 1% *
Humidity 30%
Fri, 30th
Buffalo County SD Weather - Friday, Oct 30, 2026 - Sunny
Hi: 71°F 22°C
Lo: 46°F 8°C
Sunrise 08:11 AM
Sunset 06:30 PM
Wind S 9 mph14 km/h
Dew Point 31°F-1°C
uv Index 5
Barometric Pressure 29.8 in1009 mb
POP 1% *
Humidity 33%
Sat, 31st
Buffalo County SD Weather - Saturday, Oct 31, 2026 - Sunny
Hi: 69°F 20°C
Lo: 47°F 8°C
Sunrise 08:13 AM
Sunset 06:28 PM
Wind SSE 18 mph29 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 29.47 in998 mb
POP 5% *
Humidity 57%
* POP = Probability of Precipitation. Data for 12:00 PM.