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Lyman County SD Weather - Hazy - 76°F
Hazy
76°F
Updated 7:09 pm
Feels Like 68°F
Humidity 41%
Wind N 3 mph
Barometer  29.9 in
Dew Point 51°F
Lyman County SD Weather - Hazy - 25°C
Hazy
25°C
Updated 7:09 pm
Feels Like 20°C
Humidity 41%
Wind N 5 km/h
Barometer  101.2 kPa
Dew Point 11°C
Lyman County, SD Weather and Current Conditionslyman county sd weather forecast

Lyman County, SD Weather Forecast

Lyman County South Dakota WeatherLyman County, South Dakota Weather Weather Forecast
Here is the API 14 day weather forecast for Lyman County, South Dakota. Note: The 7-day weather forecast for Lyman County, SD is the most reliable and accurate weather forecast. This template should only be used as a probable scenario. Forecasting weather beyond the next 7 days is a challenge.
Lyman County, SD Weather Forecast Dated: 709 PM Tue Oct 06 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Tuesday, October 6, 2026

Mid-Morning
Lyman County Weather - 2026-10-06 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Lyman County Weather - 2026-10-06 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Lyman County Weather - 2026-10-06 - Evening - Sunny
75°F 24°C
Sunny
Warm and summery near 84°F 29°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NW to the NNE at 4 mph 7 km/h.

Wednesday, October 7, 2026

Mid-Morning
Lyman County Weather - 2026-10-07 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Lyman County Weather - 2026-10-07 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Lyman County Weather - 2026-10-07 - Evening - Overcast
69°F 21°C
Overcast
Comfortable with temperatures reaching 78°F 26°C, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the W to the N at 7 mph 10 km/h.

Thursday, October 8, 2026

Mid-Morning
Lyman County Weather - 2026-10-08 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Lyman County Weather - 2026-10-08 - Afternoon - Sunny
76°F 24°C
Sunny
Early-Evening
Lyman County Weather - 2026-10-08 - Evening - Overcast
71°F 22°C
Overcast
Enjoyable around 76°F 24°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds moving from the SE to the ESE at 13 mph 21 km/h. Gusts up to 26 mph 42 km/h.

Friday, October 9, 2026

Mid-Morning
Lyman County Weather - 2026-10-09 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Lyman County Weather - 2026-10-09 - Afternoon - Sunny
83°F 29°C
Sunny
Early-Evening
Lyman County Weather - 2026-10-09 - Evening - Sunny
78°F 26°C
Sunny
Warm temperatures up to 83°F 29°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds picking up from NW at 2 mph 3 km/h to SSE at 10 mph 15 km/h. Gusts up to 24 mph 38 km/h.

Saturday, October 10, 2026

Mid-Morning
Lyman County Weather - 2026-10-10 - Morning - Partly Cloudy
71°F 22°C
Partly Cloudy
Mid-Afternoon
Lyman County Weather - 2026-10-10 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Lyman County Weather - 2026-10-10 - Evening - Cloudy
78°F 26°C
Cloudy
Very hot with a high of 92°F 33°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds tapering down from SSW 16 mph 26 km/h to NNE 8 mph 12 km/h.

Sunday, October 11, 2026

Mid-Morning
Lyman County Weather - 2026-10-11 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Lyman County Weather - 2026-10-11 - Afternoon - Overcast
59°F 15°C
Overcast
Early-Evening
Lyman County Weather - 2026-10-11 - Evening - Overcast
53°F 12°C
Overcast
Mildly cool near 59°F 15°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure rising. Winds NNE at 15 mph 24 km/h.

Monday, October 12, 2026

Mid-Morning
Lyman County Weather - 2026-10-12 - Morning - Sunny
43°F 6°C
Sunny
Mid-Afternoon
Lyman County Weather - 2026-10-12 - Afternoon - Overcast
55°F 13°C
Overcast
Early-Evening
Lyman County Weather - 2026-10-12 - Evening - Cloudy
53°F 12°C
Cloudy
Chilly near 55°F 13°C, cloudy in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds switching from the NE to the E at 8 mph 13 km/h.

Tuesday, October 13, 2026

Mid-Morning
Lyman County Weather - 2026-10-13 - Morning - Overcast
52°F 11°C
Overcast
Mid-Afternoon
Lyman County Weather - 2026-10-13 - Afternoon - Overcast
72°F 22°C
Overcast
Early-Evening
Lyman County Weather - 2026-10-13 - Evening - Overcast
70°F 21°C
Overcast
Enjoyable around 72°F 22°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds blowing from the SE at 12 mph 19 km/h.

Wednesday, October 14, 2026

Mid-Morning
Lyman County Weather - 2026-10-14 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Lyman County Weather - 2026-10-14 - Afternoon - Overcast
75°F 24°C
Overcast
Early-Evening
Lyman County Weather - 2026-10-14 - Evening - Overcast
68°F 20°C
Overcast
Mild temperatures up to 75°F 24°C, overcast throughout the day, with steady humidity and steady pressure. Winds swinging from the S to the SW at 14 mph 22 km/h. Gusts up to 23 mph 37 km/h.

Thursday, October 15, 2026

Mid-Morning
Lyman County Weather - 2026-10-15 - Morning - Rain
43°F 6°C
Rain
Mid-Afternoon
Lyman County Weather - 2026-10-15 - Afternoon - Scattered Showers
47°F 8°C
Scattered Showers
Early-Evening
Lyman County Weather - 2026-10-15 - Evening - Sunny
45°F 7°C
Sunny
Cool and brisk at 47°F 8°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds out of the NNW at 22 mph 35 km/h. Gusts up to 30 mph 48 km/h.

Friday, October 16, 2026

Mid-Morning
Lyman County Weather - 2026-10-16 - Morning - Sunny
38°F 3°C
Sunny
Mid-Afternoon
Lyman County Weather - 2026-10-16 - Afternoon - Cloudy
45°F 7°C
Cloudy
Early-Evening
Lyman County Weather - 2026-10-16 - Evening - Sunny
40°F 5°C
Sunny
Chilly near 45°F 7°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds turning from the NNW to the NNE at 8 mph 12 km/h.

Saturday, October 17, 2026

Mid-Morning
Lyman County Weather - 2026-10-17 - Morning - Sunny
35°F 2°C
Sunny
Mid-Afternoon
Lyman County Weather - 2026-10-17 - Afternoon - Sunny
44°F 7°C
Sunny
Early-Evening
Lyman County Weather - 2026-10-17 - Evening - Sunny
41°F 5°C
Sunny
Cold with a high near 44°F 7°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.

Sunday, October 18, 2026

Mid-Morning
Lyman County Weather - 2026-10-18 - Morning - Heavy Snow
35°F 2°C
Heavy Snow
Mid-Afternoon
Lyman County Weather - 2026-10-18 - Afternoon - Heavy Snow
35°F 2°C
Heavy Snow
Early-Evening
Lyman County Weather - 2026-10-18 - Evening - Light Snow Showers
35°F 2°C
Light Snow Showers
Nippy around 35°F 2°C, rounds of snow expected off and on all day, with increasing humidity and steady pressure. Snow accumulation up to 2 in. up to 5 cm. Winds switching from the NNE to the WSW at 7 mph 12 km/h.

Monday, October 19, 2026

Mid-Morning
Lyman County Weather - 2026-10-19 - Morning - Light Snow
35°F 2°C
Light Snow
Mid-Afternoon
Lyman County Weather - 2026-10-19 - Afternoon - Light Snow Showers
39°F 4°C
Light Snow Showers
Early-Evening
Lyman County Weather - 2026-10-19 - Evening - Scattered Showers
39°F 4°C
Scattered Showers
Biting cold near 39°F 4°C, patchy blowing snow and gusty conditions, with lower humidity and steady pressure. Winds moving from the SSW to the ENE at 5 mph 9 km/h.

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Weather by the Numbers

Tue, 6th
Lyman County SD Weather - Tuesday, Oct 6, 2026 - Partly Cloudy
Hi: 84°F 29°C
Lo: 61°F 16°C
Sunrise 07:43 AM
Sunset 07:11 PM
Wind WNW 6 mph10 km/h
Dew Point 36°F2°C
uv Index 3
Barometric Pressure 29.83 in1010 mb
POP 3% *
Humidity 22%
Wed, 7th
Lyman County SD Weather - Wednesday, Oct 7, 2026 - Sunny
Hi: 78°F 26°C
Lo: 57°F 14°C
Sunrise 07:44 AM
Sunset 07:09 PM
Wind NW 11 mph17 km/h
Dew Point 40°F4°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 30%
Thu, 8th
Lyman County SD Weather - Thursday, Oct 8, 2026 - Patchy Rain Nearby
Hi: 79°F 26°C
Lo: 53°F 12°C
Sunrise 07:46 AM
Sunset 07:08 PM
Wind SSE 14 mph22 km/h
Dew Point 40°F5°C
uv Index 3
Barometric Pressure 30 in1016 mb
POP 11% *
Humidity 38%
Fri, 9th
Lyman County SD Weather - Friday, Oct 9, 2026 - Partly Cloudy
Hi: 86°F 30°C
Lo: 56°F 13°C
Sunrise 07:47 AM
Sunset 07:06 PM
Wind SE 7 mph12 km/h
Dew Point 48°F9°C
uv Index 3
Barometric Pressure 29.77 in1008 mb
POP 5% *
Humidity 40%
Sat, 10th
Lyman County SD Weather - Saturday, Oct 10, 2026 - Sunny
Hi: 93°F 34°C
Lo: 67°F 20°C
Sunrise 07:48 AM
Sunset 07:04 PM
Wind WSW 12 mph20 km/h
Dew Point 42°F6°C
uv Index 3
Barometric Pressure 29.5 in999 mb
POP 0% *
Humidity 23%
Sun, 11th
Lyman County SD Weather - Sunday, Oct 11, 2026 - Overcast
Hi: 67°F 19°C
Lo: 44°F 7°C
Sunrise 07:49 AM
Sunset 07:02 PM
Wind N 16 mph26 km/h
Dew Point 37°F3°C
uv Index 3
Barometric Pressure 30 in1016 mb
POP 12% *
Humidity 48%
Mon, 12th
Lyman County SD Weather - Monday, Oct 12, 2026 - Overcast
Hi: 57°F 14°C
Lo: 41°F 5°C
Sunrise 07:50 AM
Sunset 07:01 PM
Wind ENE 7 mph12 km/h
Dew Point 33°F1°C
uv Index 2
Barometric Pressure 30.18 in1022 mb
POP 13% *
Humidity 53%
Tue, 13th
Lyman County SD Weather - Tuesday, Oct 13, 2026 - Overcast
Hi: 74°F 24°C
Lo: 48°F 9°C
Sunrise 07:52 AM
Sunset 06:59 PM
Wind SE 15 mph23 km/h
Dew Point 50°F10°C
uv Index 4
Barometric Pressure 29.83 in1010 mb
POP 14% *
Humidity 62%
Wed, 14th
Lyman County SD Weather - Wednesday, Oct 14, 2026 - Overcast
Hi: 75°F 24°C
Lo: 60°F 16°C
Sunrise 07:53 AM
Sunset 06:57 PM
Wind WSW 7 mph12 km/h
Dew Point 58°F15°C
uv Index 5
Barometric Pressure 29.56 in1001 mb
POP 15% *
Humidity 61%
Thu, 15th
Lyman County SD Weather - Thursday, Oct 15, 2026 - Light Drizzle
Hi: 57°F 14°C
Lo: 42°F 5°C
Sunrise 07:54 AM
Sunset 06:55 PM
Wind NNW 23 mph37 km/h
Dew Point 35°F2°C
uv Index 2
Barometric Pressure 30.18 in1022 mb
POP 34% *
Humidity 73%
Fri, 16th
Lyman County SD Weather - Friday, Oct 16, 2026 - Sunny
Hi: 45°F 7°C
Lo: 36°F 2°C
Sunrise 07:55 AM
Sunset 06:54 PM
Wind NNW 13 mph20 km/h
Dew Point 23°F-5°C
uv Index 3
Barometric Pressure 30.65 in1038 mb
POP 4% *
Humidity 47%
Sat, 17th
Lyman County SD Weather - Saturday, Oct 17, 2026 - Sunny
Hi: 45°F 7°C
Lo: 32°F -0°C
Sunrise 07:57 AM
Sunset 06:52 PM
Wind ESE 3 mph5 km/h
Dew Point 23°F-5°C
uv Index 2
Barometric Pressure 30.53 in1034 mb
POP 2% *
Humidity 49%
Sun, 18th
Lyman County SD Weather - Sunday, Oct 18, 2026 - Heavy Snow
Hi: 37°F 3°C
Lo: 34°F 1°C
Sunrise 07:58 AM
Sunset 06:50 PM
Wind N 9 mph14 km/h
Dew Point 33°F1°C
uv Index 1
Barometric Pressure 30.24 in1024 mb
POP 72% *
Humidity 94%
Mon, 19th
Lyman County SD Weather - Monday, Oct 19, 2026 - Moderate Snow
Hi: 40°F 4°C
Lo: 34°F 1°C
Sunrise 07:59 AM
Sunset 06:49 PM
Wind SSE 8 mph13 km/h
Dew Point 35°F2°C
uv Index 1
Barometric Pressure 30.09 in1019 mb
POP 32% *
Humidity 92%
* POP = Probability of Precipitation. Data for 12:00 PM.