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Lightcap SD Weather - Sunny - 90°F
Sunny
90°F
Updated 5:22 pm
Feels Like 84°F
Humidity 27%
Wind SSW 15 mph
Barometer  29.73 in
Dew Point 52°F
Lightcap SD Weather - Sunny - 32°C
Sunny
32°C
Updated 5:22 pm
Feels Like 29°C
Humidity 27%
Wind SSW 24 km/h
Barometer  100.6 kPa
Dew Point 11°C
Lightcap, SD Weather and Current Conditionslightcap sd weather forecast

Lightcap, SD Weather Forecast

Lightcap South Dakota WeatherLightcap, South Dakota Weather Weather Forecast
14 day API Lightcap, SD weather forecast. Note. Our 7-day weather forecast for Lightcap, 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.
Lightcap, SD Weather Forecast Dated: 522 PM Mon Sep 07 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. comfortable humidity and no major pressure swings will dominate.

Monday, September 7, 2026

Mid-Morning
Lightcap Weather - 2026-09-07 - Morning - Heavy Rain At Times
71°F 22°C
Heavy Rain At Times
Mid-Afternoon
Lightcap Weather - 2026-09-07 - Afternoon - Heavy Rain
85°F 30°C
Heavy Rain
Early-Evening
Lightcap Weather - 2026-09-07 - Evening - Scattered Showers
87°F 31°C
Scattered Showers
Warm and summery around 85°F 30°C (feels like 89°F 32°C), periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds easing from S 19 mph 31 km/h to NNW 9 mph 15 km/h.

Tuesday, September 8, 2026

Mid-Morning
Lightcap Weather - 2026-09-08 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Lightcap Weather - 2026-09-08 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Lightcap Weather - 2026-09-08 - Evening - Sunny
75°F 24°C
Sunny
Comfortable with temperatures reaching 77°F 25°C, sunny throughout the day, with steady humidity and steady pressure. Winds tapering down from WNW 20 mph 33 km/h to NNW 11 mph 17 km/h.

Wednesday, September 9, 2026

Mid-Morning
Lightcap Weather - 2026-09-09 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Lightcap Weather - 2026-09-09 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Lightcap Weather - 2026-09-09 - Evening - Sunny
74°F 24°C
Sunny
Enjoyable around 75°F 24°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds decreasing from WNW 18 mph 28 km/h to N 8 mph 13 km/h.

Thursday, September 10, 2026

Mid-Morning
Lightcap Weather - 2026-09-10 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Lightcap Weather - 2026-09-10 - Afternoon - Sunny
85°F 30°C
Sunny
Early-Evening
Lightcap Weather - 2026-09-10 - Evening - Sunny
84°F 29°C
Sunny
Warm temperatures up to 85°F 30°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds swinging from the WSW to the SW at 10 mph 16 km/h.

Friday, September 11, 2026

Mid-Morning
Lightcap Weather - 2026-09-11 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Lightcap Weather - 2026-09-11 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Lightcap Weather - 2026-09-11 - Evening - Sunny
56°F 14°C
Sunny
Mild with a high of 72°F 22°C, sunny throughout the day, with steady humidity and barometric pressure rising. Winds shifting from the N to the NNW at 19 mph 29 km/h. Gusts up to 27 mph 43 km/h.

Saturday, September 12, 2026

Mid-Morning
Lightcap Weather - 2026-09-12 - Morning - Sunny
51°F 11°C
Sunny
Mid-Afternoon
Lightcap Weather - 2026-09-12 - Afternoon - Overcast
63°F 17°C
Overcast
Early-Evening
Lightcap Weather - 2026-09-12 - Evening - Overcast
64°F 18°C
Overcast
Mildly cool near 63°F 17°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds increasing from the NNW at 3 mph 5 km/h to E at 12 mph 18 km/h.

Sunday, September 13, 2026

Mid-Morning
Lightcap Weather - 2026-09-13 - Morning - Scattered Showers
54°F 12°C
Scattered Showers
Mid-Afternoon
Lightcap Weather - 2026-09-13 - Afternoon - Overcast
54°F 12°C
Overcast
Early-Evening
Lightcap Weather - 2026-09-13 - Evening - Overcast
50°F 10°C
Overcast
Chilly near 54°F 12°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds out of the ESE at 16 mph 26 km/h. Gusts up to 23 mph 36 km/h.

Monday, September 14, 2026

Mid-Morning
Lightcap Weather - 2026-09-14 - Morning - Scattered Showers
50°F 10°C
Scattered Showers
Mid-Afternoon
Lightcap Weather - 2026-09-14 - Afternoon - Scattered Showers
58°F 14°C
Scattered Showers
Early-Evening
Lightcap Weather - 2026-09-14 - Evening - Cloudy
52°F 11°C
Cloudy
Cool with a high near 58°F 14°C, scattered downpours possible, with lower humidity and steady pressure. Winds moving from the NW to the WNW at 18 mph 29 km/h. Gusts up to 24 mph 39 km/h.

Tuesday, September 15, 2026

Mid-Morning
Lightcap Weather - 2026-09-15 - Morning - Sunny
48°F 9°C
Sunny
Mid-Afternoon
Lightcap Weather - 2026-09-15 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Lightcap Weather - 2026-09-15 - Evening - Partly Cloudy
59°F 15°C
Partly Cloudy
Refreshing around 64°F 18°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds swinging from the NW to the N at 15 mph 24 km/h. Gusts up to 20 mph 32 km/h.

Wednesday, September 16, 2026

Mid-Morning
Lightcap Weather - 2026-09-16 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Lightcap Weather - 2026-09-16 - Afternoon - Sunny
58°F 14°C
Sunny
Early-Evening
Lightcap Weather - 2026-09-16 - Evening - Sunny
72°F 22°C
Sunny
Mildly cool near 58°F 14°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds shifting from the N to the SE at 9 mph 14 km/h.

Thursday, September 17, 2026

Mid-Morning
Lightcap Weather - 2026-09-17 - Morning - Partly Cloudy
62°F 17°C
Partly Cloudy
Mid-Afternoon
Lightcap Weather - 2026-09-17 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Lightcap Weather - 2026-09-17 - Evening - Sunny
73°F 23°C
Sunny
Pleasant near 78°F 26°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the E to the ESE at 16 mph 25 km/h. Gusts up to 27 mph 43 km/h.

Friday, September 18, 2026

Mid-Morning
Lightcap Weather - 2026-09-18 - Morning - Overcast
62°F 16°C
Overcast
Mid-Afternoon
Lightcap Weather - 2026-09-18 - Afternoon - Partly Cloudy
79°F 26°C
Partly Cloudy
Early-Evening
Lightcap Weather - 2026-09-18 - Evening - Scattered Showers
70°F 21°C
Scattered Showers
Comfortable with temperatures reaching 79°F 26°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds switching from the E to the N at 13 mph 21 km/h. Gusts up to 25 mph 39 km/h.

Saturday, September 19, 2026

Mid-Morning
Lightcap Weather - 2026-09-19 - Morning - Overcast
48°F 9°C
Overcast
Mid-Afternoon
Lightcap Weather - 2026-09-19 - Afternoon - Partly Cloudy
54°F 12°C
Partly Cloudy
Early-Evening
Lightcap Weather - 2026-09-19 - Evening - Sunny
56°F 13°C
Sunny
Brisk around 54°F 12°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the N to the ENE at 9 mph 14 km/h.

Sunday, September 20, 2026

Mid-Morning
Lightcap Weather - 2026-09-20 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Lightcap Weather - 2026-09-20 - Afternoon - Sunny
69°F 20°C
Sunny
Early-Evening
Lightcap Weather - 2026-09-20 - Evening - Sunny
72°F 23°C
Sunny
Mild temperatures up to 69°F 20°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds swinging from the SSE to the SE at 17 mph 27 km/h. Gusts up to 32 mph 52 km/h.

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Weather by the Numbers

Mon, 7th
Lightcap SD Weather - Monday, Sep 7, 2026 - Heavy Rain
Hi: 93°F 34°C
Lo: 69°F 20°C
Sunrise 06:14 AM
Sunset 07:12 PM
Wind S 22 mph35 km/h
Dew Point 71°F22°C
uv Index 3
Barometric Pressure 29.62 in1003 mb
POP 89% *
Humidity 84%
Tue, 8th
Lightcap SD Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 81°F 27°C
Lo: 61°F 16°C
Sunrise 06:16 AM
Sunset 07:10 PM
Wind WNW 20 mph32 km/h
Dew Point 33°F1°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 0% *
Humidity 23%
Wed, 9th
Lightcap SD Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 79°F 26°C
Lo: 52°F 11°C
Sunrise 06:17 AM
Sunset 07:08 PM
Wind WNW 18 mph29 km/h
Dew Point 35°F2°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 0% *
Humidity 27%
Thu, 10th
Lightcap SD Weather - Thursday, Sep 10, 2026 - Overcast
Hi: 86°F 30°C
Lo: 63°F 17°C
Sunrise 06:18 AM
Sunset 07:06 PM
Wind SW 11 mph18 km/h
Dew Point 26°F-3°C
uv Index 6
Barometric Pressure 29.8 in1009 mb
POP 8% *
Humidity 15%
Fri, 11th
Lightcap SD Weather - Friday, Sep 11, 2026 - Sunny
Hi: 79°F 26°C
Lo: 54°F 12°C
Sunrise 06:19 AM
Sunset 07:04 PM
Wind N 17 mph28 km/h
Dew Point 32°F-0°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 25%
Sat, 12th
Lightcap SD Weather - Saturday, Sep 12, 2026 - Partly Cloudy
Hi: 67°F 19°C
Lo: 51°F 11°C
Sunrise 06:21 AM
Sunset 07:02 PM
Wind SSE 2 mph3 km/h
Dew Point 28°F-2°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 2% *
Humidity 31%
Sun, 13th
Lightcap SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 56°F 13°C
Lo: 49°F 9°C
Sunrise 06:22 AM
Sunset 07:00 PM
Wind E 18 mph28 km/h
Dew Point 36°F2°C
uv Index 3
Barometric Pressure 29.94 in1014 mb
POP 12% *
Humidity 51%
Mon, 14th
Lightcap SD Weather - Monday, Sep 14, 2026 - Cloudy
Hi: 58°F 14°C
Lo: 46°F 8°C
Sunrise 06:23 AM
Sunset 06:58 PM
Wind NW 15 mph23 km/h
Dew Point 41°F5°C
uv Index 3
Barometric Pressure 30 in1016 mb
POP 9% *
Humidity 59%
Tue, 15th
Lightcap SD Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 64°F 18°C
Lo: 44°F 7°C
Sunrise 06:24 AM
Sunset 06:56 PM
Wind WNW 12 mph20 km/h
Dew Point 31°F-0°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 1% *
Humidity 37%
Wed, 16th
Lightcap SD Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 72°F 22°C
Lo: 45°F 7°C
Sunrise 06:25 AM
Sunset 06:54 PM
Wind NNW 8 mph13 km/h
Dew Point 25°F-4°C
uv Index 4
Barometric Pressure 30.42 in1030 mb
POP 1% *
Humidity 33%
Thu, 17th
Lightcap SD Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 78°F 26°C
Lo: 62°F 17°C
Sunrise 06:27 AM
Sunset 06:53 PM
Wind ESE 13 mph21 km/h
Dew Point 35°F1°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 24%
Fri, 18th
Lightcap SD Weather - Friday, Sep 18, 2026 - Sunny
Hi: 79°F 26°C
Lo: 62°F 16°C
Sunrise 06:28 AM
Sunset 06:51 PM
Wind NNW 9 mph14 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 29.8 in1009 mb
POP 1% *
Humidity 44%
Sat, 19th
Lightcap SD Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 59°F 15°C
Lo: 47°F 8°C
Sunrise 06:29 AM
Sunset 06:49 PM
Wind N 15 mph23 km/h
Dew Point 26°F-3°C
uv Index 2
Barometric Pressure 30.3 in1026 mb
POP 10% *
Humidity 42%
Sun, 20th
Lightcap SD Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 73°F 23°C
Lo: 45°F 7°C
Sunrise 06:30 AM
Sunset 06:47 PM
Wind SSE 24 mph39 km/h
Dew Point 26°F-4°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 1% *
Humidity 28%
* POP = Probability of Precipitation. Data for 12:00 PM.