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Lyman SD Weather - Mostly Cloudy - 71°F
Mostly Cloudy
71°F
Updated 12:12 pm
Feels Like 74°F
Humidity 95%
Wind SE 12 mph
Barometer  29.9 in
Dew Point 69°F
Lyman SD Weather - Mostly Cloudy - 22°C
Mostly Cloudy
22°C
Updated 12:12 pm
Feels Like 23°C
Humidity 95%
Wind SE 19 km/h
Barometer  101.2 kPa
Dew Point 21°C
Lyman, SD Weather and Current Conditionslyman sd weather forecast

Lyman, SD Weather Forecast

Lyman South Dakota WeatherLyman, South Dakota Weather Weather Forecast
14 Day API Lyman, SD Weather Forecast. Note: Our 7 day Lyman, 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.
Lyman, SD Weather Forecast Dated: 1212 PM Mon Sep 07 2026
Expect a mild stretch with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.

Monday, September 7, 2026

Mid-Morning
Lyman Weather - 2026-09-07 - Morning - Overcast
73°F 23°C
Overcast
Mid-Afternoon
Lyman Weather - 2026-09-07 - Afternoon - Drizzle
82°F 28°C
Drizzle
Early-Evening
Lyman Weather - 2026-09-07 - Evening - Light Showers
90°F 33°C
Light Showers
Warm and summery around 82°F 28°C (feels like 85°F 29°C), drier morning followed by showers lasting through evening, with lower humidity and barometric pressure falling. Winds easing from SE 18 mph 28 km/h to WSW 9 mph 15 km/h.

Tuesday, September 8, 2026

Mid-Morning
Lyman Weather - 2026-09-08 - Morning - Overcast
71°F 22°C
Overcast
Mid-Afternoon
Lyman Weather - 2026-09-08 - Afternoon - Overcast
83°F 29°C
Overcast
Early-Evening
Lyman Weather - 2026-09-08 - Evening - Partly Cloudy
82°F 28°C
Partly Cloudy
Balmy with temperatures reaching 83°F 29°C, overcast through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds blowing from the NW at 12 mph 20 km/h.

Wednesday, September 9, 2026

Mid-Morning
Lyman Weather - 2026-09-09 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Lyman Weather - 2026-09-09 - Afternoon - Overcast
78°F 25°C
Overcast
Early-Evening
Lyman Weather - 2026-09-09 - Evening - Overcast
77°F 26°C
Overcast
Enjoyable around 78°F 25°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds decreasing from NW 15 mph 24 km/h to W 7 mph 10 km/h.

Thursday, September 10, 2026

Mid-Morning
Lyman Weather - 2026-09-10 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Lyman Weather - 2026-09-10 - Afternoon - Overcast
88°F 31°C
Overcast
Early-Evening
Lyman Weather - 2026-09-10 - Evening - Sunny
87°F 31°C
Sunny
Warm temperatures up to 88°F 31°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the SSW to the E at 7 mph 11 km/h.

Friday, September 11, 2026

Mid-Morning
Lyman Weather - 2026-09-11 - Morning - Sunny
67°F 19°C
Sunny
Mid-Afternoon
Lyman Weather - 2026-09-11 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Lyman Weather - 2026-09-11 - Evening - Sunny
78°F 25°C
Sunny
Very warm with a high of 81°F 27°C, sunny throughout the day, with steady humidity and barometric pressure rising. Winds shifting from the N to the NNE at 12 mph 19 km/h.

Saturday, September 12, 2026

Mid-Morning
Lyman Weather - 2026-09-12 - Morning - Cloudy
63°F 17°C
Cloudy
Mid-Afternoon
Lyman Weather - 2026-09-12 - Afternoon - Partly Cloudy
84°F 29°C
Partly Cloudy
Early-Evening
Lyman Weather - 2026-09-12 - Evening - Partly Cloudy
84°F 29°C
Partly Cloudy
Warm and summery near 84°F 29°C, cloudy in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds SSE at 17 mph 27 km/h. Gusts up to 27 mph 44 km/h.

Sunday, September 13, 2026

Mid-Morning
Lyman Weather - 2026-09-13 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Lyman Weather - 2026-09-13 - Afternoon - Sunny
83°F 28°C
Sunny
Early-Evening
Lyman Weather - 2026-09-13 - Evening - Sunny
66°F 19°C
Sunny
Balmy with temperatures reaching 83°F 28°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure rising. Winds picking up from ESE at 13 mph 21 km/h to NNW at 21 mph 34 km/h. Gusts up to 29 mph 46 km/h.

Monday, September 14, 2026

Mid-Morning
Lyman Weather - 2026-09-14 - Morning - Partly Cloudy
48°F 9°C
Partly Cloudy
Mid-Afternoon
Lyman Weather - 2026-09-14 - Afternoon - Overcast
51°F 11°C
Overcast
Early-Evening
Lyman Weather - 2026-09-14 - Evening - Sunny
51°F 11°C
Sunny
Crisp with a high near 51°F 11°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds moving from the NNW to the SE at 11 mph 18 km/h.

Tuesday, September 15, 2026

Mid-Morning
Lyman Weather - 2026-09-15 - Morning - Sunny
49°F 10°C
Sunny
Mid-Afternoon
Lyman Weather - 2026-09-15 - Afternoon - Sunny
60°F 16°C
Sunny
Early-Evening
Lyman Weather - 2026-09-15 - Evening - Sunny
61°F 16°C
Sunny
Refreshing around 60°F 16°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the S to the ESE at 8 mph 12 km/h.

Wednesday, September 16, 2026

Mid-Morning
Lyman Weather - 2026-09-16 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Lyman Weather - 2026-09-16 - Afternoon - Sunny
74°F 24°C
Sunny
Early-Evening
Lyman Weather - 2026-09-16 - Evening - Sunny
74°F 24°C
Sunny
Mild with a high of 74°F 24°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds shifting from the SSE to the ESE at 8 mph 13 km/h.

Thursday, September 17, 2026

Mid-Morning
Lyman Weather - 2026-09-17 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Lyman Weather - 2026-09-17 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Lyman Weather - 2026-09-17 - Evening - Sunny
79°F 26°C
Sunny
Warm and summery near 81°F 27°C, sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the ESE at 9 mph 14 km/h. Gusts up to 23 mph 37 km/h.

Friday, September 18, 2026

Mid-Morning
Lyman Weather - 2026-09-18 - Morning - Scattered Showers
76°F 25°C
Scattered Showers
Mid-Afternoon
Lyman Weather - 2026-09-18 - Afternoon - Light Showers
80°F 27°C
Light Showers
Early-Evening
Lyman Weather - 2026-09-18 - Evening - Light Showers
80°F 27°C
Light Showers
Balmy with temperatures reaching 80°F 27°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds switching from the S to the NE at 7 mph 11 km/h.

Saturday, September 19, 2026

Mid-Morning
Lyman Weather - 2026-09-19 - Morning - Sunny
56°F 14°C
Sunny
Mid-Afternoon
Lyman Weather - 2026-09-19 - Afternoon - Overcast
60°F 16°C
Overcast
Early-Evening
Lyman Weather - 2026-09-19 - Evening - Partly Cloudy
58°F 14°C
Partly Cloudy
Refreshing around 60°F 16°C, cloudy through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure rising. Winds moving from the NNE to the SW at 11 mph 17 km/h.

Sunday, September 20, 2026

Mid-Morning
Lyman Weather - 2026-09-20 - Morning - Sunny
48°F 9°C
Sunny
Mid-Afternoon
Lyman Weather - 2026-09-20 - Afternoon - Partly Cloudy
69°F 20°C
Partly Cloudy
Early-Evening
Lyman Weather - 2026-09-20 - Evening - Sunny
70°F 22°C
Sunny
Mild temperatures up to 69°F 20°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the SE to the SSE at 17 mph 27 km/h. Gusts up to 29 mph 46 km/h.

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Weather by the Numbers

Mon, 7th
Lyman SD Weather - Monday, Sep 7, 2026 - Light Drizzle
Hi: 97°F 36°C
Lo: 69°F 21°C
Sunrise 07:10 AM
Sunset 08:04 PM
Wind S 16 mph26 km/h
Dew Point 68°F20°C
uv Index 5
Barometric Pressure 29.74 in1007 mb
POP 36% *
Humidity 75%
Tue, 8th
Lyman SD Weather - Tuesday, Sep 8, 2026 - Overcast
Hi: 84°F 29°C
Lo: 71°F 22°C
Sunrise 07:11 AM
Sunset 08:02 PM
Wind NNW 15 mph24 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 9% *
Humidity 20%
Wed, 9th
Lyman SD Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 79°F 26°C
Lo: 64°F 18°C
Sunrise 07:12 AM
Sunset 08:00 PM
Wind NW 13 mph21 km/h
Dew Point 40°F4°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 32%
Thu, 10th
Lyman SD Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 91°F 33°C
Lo: 65°F 18°C
Sunrise 07:13 AM
Sunset 07:59 PM
Wind SW 7 mph12 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 1% *
Humidity 19%
Fri, 11th
Lyman SD Weather - Friday, Sep 11, 2026 - Sunny
Hi: 81°F 27°C
Lo: 67°F 19°C
Sunrise 07:14 AM
Sunset 07:57 PM
Wind N 21 mph35 km/h
Dew Point 41°F5°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 1% *
Humidity 27%
Sat, 12th
Lyman SD Weather - Saturday, Sep 12, 2026 - Patchy Rain Nearby
Hi: 87°F 30°C
Lo: 59°F 15°C
Sunrise 07:16 AM
Sunset 07:55 PM
Wind SE 15 mph24 km/h
Dew Point 36°F2°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 3% *
Humidity 26%
Sun, 13th
Lyman SD Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 85°F 30°C
Lo: 52°F 11°C
Sunrise 07:17 AM
Sunset 07:53 PM
Wind ESE 9 mph14 km/h
Dew Point 62°F17°C
uv Index 6
Barometric Pressure 29.65 in1004 mb
POP 4% *
Humidity 64%
Mon, 14th
Lyman SD Weather - Monday, Sep 14, 2026 - Patchy Rain Nearby
Hi: 53°F 12°C
Lo: 47°F 8°C
Sunrise 07:18 AM
Sunset 07:51 PM
Wind NNW 15 mph25 km/h
Dew Point 35°F2°C
uv Index 2
Barometric Pressure 30.36 in1028 mb
POP 15% *
Humidity 60%
Tue, 15th
Lyman SD Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 62°F 17°C
Lo: 49°F 10°C
Sunrise 07:19 AM
Sunset 07:50 PM
Wind SSE 5 mph9 km/h
Dew Point 31°F-1°C
uv Index 4
Barometric Pressure 30.45 in1031 mb
POP 1% *
Humidity 40%
Wed, 16th
Lyman SD Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 76°F 25°C
Lo: 53°F 12°C
Sunrise 07:20 AM
Sunset 07:48 PM
Wind SSE 11 mph17 km/h
Dew Point 36°F2°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 33%
Thu, 17th
Lyman SD Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 83°F 28°C
Lo: 62°F 17°C
Sunrise 07:21 AM
Sunset 07:46 PM
Wind ESE 8 mph12 km/h
Dew Point 43°F6°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 34%
Fri, 18th
Lyman SD Weather - Friday, Sep 18, 2026 - Patchy Rain Nearby
Hi: 81°F 27°C
Lo: 70°F 21°C
Sunrise 07:22 AM
Sunset 07:44 PM
Wind W 6 mph10 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 29.74 in1007 mb
POP 17% *
Humidity 38%
Sat, 19th
Lyman SD Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 69°F 21°C
Lo: 55°F 13°C
Sunrise 07:24 AM
Sunset 07:42 PM
Wind NNE 15 mph24 km/h
Dew Point 26°F-3°C
uv Index 4
Barometric Pressure 30.18 in1022 mb
POP 9% *
Humidity 28%
Sun, 20th
Lyman SD Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 72°F 22°C
Lo: 46°F 8°C
Sunrise 07:25 AM
Sunset 07:40 PM
Wind SSE 15 mph25 km/h
Dew Point 27°F-3°C
uv Index 4
Barometric Pressure 30.3 in1026 mb
POP 2% *
Humidity 31%
* POP = Probability of Precipitation. Data for 12:00 PM.