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Current weather in Boulder Canyon is broken clouds.

Where can I find the hourly weather forecast for Boulder Canyon?

This page shows hourly weather forecast for Boulder Canyon, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Boulder Canyon updated regularly?

Weather data for Boulder Canyon is updated regularly with the latest available observations and forecasts.

Now · 2:27 AM

Boulder Canyon Weather & Hourly Forecast

United States · South Dakota · 57785

48°F

Mostly cloudy night

Feels like: 42°F

💧 Humidity 86% 🌡 Pressure 30.09 inHg 💨 Wind 7 mph 👁 Visibility 21.6 mi ☁ Clouds 69% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Boulder Canyon

Today

3:00 AM

Mostly cloudy night

47° 💧 0.005 in 💨 6 mph H 80%30.09 inHg

6:00 AM

Partly cloudy night

50° 💧 None 💨 3 mph H 72%30.12 inHg

9:00 AM

Partly cloudy

53° 💧 None 💨 2 mph H 61%30.12 inHg

12:00 PM

Mostly cloudy

60° 💧 0.000 in 💨 9 mph H 50%30.06 inHg

3:00 PM

Mostly sunny

64° 💧 0.000 in 💨 7 mph H 45%30.00 inHg

6:00 PM

Mostly sunny

62° 💧 None 💨 9 mph H 47%29.97 inHg

9:00 PM

Mostly cloudy night

55° 💧 None 💨 7 mph H 64%30.03 inHg

Tomorrow

12:00 AM

Mostly cloudy night

54° 💧 0.001 in 💨 7 mph H 67%30.03 inHg

3:00 AM

Light rain

52° 💧 0.005 in 💨 6 mph H 76%30.03 inHg

6:00 AM

Partly cloudy night

49° 💧 None 💨 7 mph H 86%30.06 inHg

9:00 AM

Partly cloudy

55° 💧 0.002 in 💨 9 mph H 65%30.09 inHg

12:00 PM

Light rain

59° 💧 0.031 in 💨 15 mph H 71%30.03 inHg

3:00 PM

Mostly cloudy

65° 💧 None 💨 15 mph H 58%29.91 inHg

6:00 PM

Partly cloudy

63° 💧 None 💨 16 mph H 62%29.85 inHg

9:00 PM

Partly cloudy night

58° 💧 None 💨 17 mph H 80%29.85 inHg

Monday

12:00 AM

Overcast night

62° 💧 0.014 in 💨 18 mph H 77%29.74 inHg

Today

3:00 AM

Mostly cloudy night

47° 💧 0.001 in 💨 6 mph H 80%30.09 inHg

4:00 AM

Overcast night

49° 💧 0.004 in 💨 5 mph H 73%30.12 inHg

5:00 AM

Overcast night

50° 💧 None 💨 4 mph H 68%30.12 inHg

6:00 AM

Partly cloudy night

50° 💧 None 💨 3 mph H 72%30.12 inHg

7:00 AM

Partly cloudy

48° 💧 None 💨 2 mph H 79%30.12 inHg

8:00 AM

Partly cloudy

51° 💧 None 💨 1 mph H 66%30.15 inHg

9:00 AM

Partly cloudy

53° 💧 None 💨 2 mph H 61%30.12 inHg

10:00 AM

Mostly cloudy

56° 💧 None 💨 4 mph H 56%30.12 inHg

11:00 AM

Mostly cloudy

58° 💧 None 💨 7 mph H 52%30.09 inHg

12:00 PM

Mostly cloudy

60° 💧 None 💨 9 mph H 50%30.06 inHg

1:00 PM

Mostly cloudy

60° 💧 None 💨 8 mph H 50%30.06 inHg

2:00 PM

Mostly sunny

62° 💧 0.000 in 💨 7 mph H 47%30.03 inHg

3:00 PM

Mostly sunny

64° 💧 0.000 in 💨 7 mph H 45%30.00 inHg

4:00 PM

Mostly sunny

64° 💧 None 💨 9 mph H 45%29.97 inHg

5:00 PM

Mostly sunny

63° 💧 None 💨 9 mph H 46%29.97 inHg

6:00 PM

Mostly sunny

62° 💧 None 💨 9 mph H 47%29.97 inHg

7:00 PM

Mostly sunny

59° 💧 None 💨 6 mph H 54%29.97 inHg

8:00 PM

Mostly cloudy night

55° 💧 None 💨 6 mph H 62%30.00 inHg

9:00 PM

Mostly cloudy night

55° 💧 None 💨 7 mph H 64%30.03 inHg

10:00 PM

Overcast night

54° 💧 None 💨 8 mph H 65%30.06 inHg

11:00 PM

Overcast night

54° 💧 None 💨 8 mph H 66%30.06 inHg

Tomorrow

12:00 AM

Mostly cloudy night

54° 💧 None 💨 7 mph H 67%30.03 inHg

1:00 AM

Overcast night

54° 💧 None 💨 7 mph H 65%30.03 inHg

2:00 AM

Mostly cloudy night

53° 💧 0.001 in 💨 7 mph H 68%30.03 inHg

3:00 AM

Light rain

52° 💧 0.004 in 💨 6 mph H 76%30.03 inHg

4:00 AM

Mostly cloudy night

51° 💧 0.001 in 💨 6 mph H 82%30.06 inHg

5:00 AM

Partly cloudy night

50° 💧 None 💨 6 mph H 85%30.06 inHg

6:00 AM

Partly cloudy night

49° 💧 None 💨 7 mph H 86%30.06 inHg

7:00 AM

Partly cloudy

49° 💧 None 💨 8 mph H 82%30.09 inHg

8:00 AM

Partly cloudy

52° 💧 None 💨 8 mph H 71%30.09 inHg

9:00 AM

Partly cloudy

55° 💧 None 💨 9 mph H 65%30.09 inHg

10:00 AM

Partly cloudy

58° 💧 None 💨 11 mph H 61%30.06 inHg

11:00 AM

Mostly cloudy

61° 💧 0.002 in 💨 11 mph H 58%30.06 inHg

12:00 PM

Light rain

59° 💧 0.019 in 💨 15 mph H 71%30.03 inHg

1:00 PM

Light rain

62° 💧 0.012 in 💨 16 mph H 62%30.00 inHg

2:00 PM

Mostly cloudy

64° 💧 None 💨 16 mph H 59%29.94 inHg

3:00 PM

Mostly cloudy

65° 💧 None 💨 15 mph H 58%29.91 inHg

4:00 PM

Mostly cloudy

65° 💧 None 💨 16 mph H 59%29.88 inHg

5:00 PM

Partly cloudy

64° 💧 None 💨 15 mph H 60%29.88 inHg

6:00 PM

Partly cloudy

63° 💧 None 💨 16 mph H 62%29.85 inHg

7:00 PM

Mostly sunny

61° 💧 None 💨 15 mph H 69%29.85 inHg

8:00 PM

Partly cloudy night

59° 💧 None 💨 16 mph H 76%29.85 inHg

9:00 PM

Partly cloudy night

58° 💧 None 💨 17 mph H 80%29.85 inHg

10:00 PM

Partly cloudy night

58° 💧 None 💨 18 mph H 81%29.83 inHg

11:00 PM

Mostly cloudy night

60° 💧 None 💨 17 mph H 79%29.77 inHg

Monday

12:00 AM

Overcast night

62° 💧 None 💨 18 mph H 77%29.74 inHg

1:00 AM

Overcast night

64° 💧 0.001 in 💨 13 mph H 76%29.71 inHg

2:00 AM

Light rain

64° 💧 0.013 in 💨 10 mph H 80%29.71 inHg

3:00 AM

Light rain

64° 💧 0.013 in 💨 11 mph H 82%29.65 inHg

4:00 AM

Overcast night

66° 💧 0.001 in 💨 12 mph H 78%29.62 inHg

5:00 AM

Light rain

66° 💧 0.010 in 💨 13 mph H 78%29.59 inHg

6:00 AM

Light thunderstorms

64° 💧 0.011 in 💨 17 mph H 83%29.59 inHg

7:00 AM

Light thunderstorms

65° 💧 0.015 in 💨 17 mph H 81%29.56 inHg

8:00 AM

Light thunderstorms

68° 💧 0.014 in 💨 12 mph H 71%29.56 inHg

9:00 AM

Partly cloudy

69° 💧 None 💨 7 mph H 73%29.62 inHg

10:00 AM

Light thunderstorms

66° 💧 0.027 in 💨 15 mph H 80%29.65 inHg

11:00 AM

Light rain

64° 💧 0.023 in 💨 15 mph H 54%29.71 inHg

12:00 PM

Sunny

66° 💧 None 💨 14 mph H 46%29.71 inHg

1:00 PM

Sunny

68° 💧 None 💨 13 mph H 43%29.68 inHg

2:00 PM

Sunny

69° 💧 None 💨 14 mph H 42%29.68 inHg

3:00 PM

Sunny

70° 💧 None 💨 14 mph H 40%29.68 inHg

4:00 PM

Mostly sunny

70° 💧 None 💨 13 mph H 37%29.71 inHg

5:00 PM

Sunny

70° 💧 None 💨 10 mph H 37%29.71 inHg

6:00 PM

Sunny

67° 💧 None 💨 9 mph H 41%29.74 inHg

9:00 PM

Clear night

63° 💧 None 💨 11 mph H 36%29.83 inHg

Tuesday

12:00 AM

Clear night

60° 💧 None 💨 16 mph H 35%29.91 inHg

3:00 AM

Clear night

55° 💧 None 💨 14 mph H 48%30.00 inHg

6:00 AM

Clear night

53° 💧 None 💨 12 mph H 57%30.09 inHg

9:00 AM

Sunny

57° 💧 None 💨 13 mph H 56%30.15 inHg

12:00 PM

Sunny

64° 💧 None 💨 6 mph H 47%30.15 inHg

3:00 PM

Mostly cloudy

67° 💧 None 💨 6 mph H 42%30.12 inHg

6:00 PM

Sunny

66° 💧 None 💨 9 mph H 41%30.09 inHg

9:00 PM

Clear night

59° 💧 None 💨 11 mph H 55%30.15 inHg

Wednesday

12:00 AM

Mostly clear night

57° 💧 None 💨 12 mph H 60%30.15 inHg

3:00 AM

Partly cloudy night

54° 💧 None 💨 15 mph H 68%30.12 inHg

6:00 AM

Heavy rain

52° 💧 None 💨 15 mph H 82%30.12 inHg

9:00 AM

Partly cloudy

55° 💧 None 💨 19 mph H 83%30.12 inHg

12:00 PM

Mostly sunny

68° 💧 None 💨 20 mph H 50%30.06 inHg

3:00 PM

Mostly cloudy

71° 💧 None 💨 17 mph H 45%30.03 inHg

6:00 PM

Mostly cloudy

69° 💧 None 💨 12 mph H 52%30.06 inHg

9:00 PM

Mostly cloudy night

62° 💧 None 💨 11 mph H 66%30.18 inHg

Thursday

12:00 AM

Overcast night

58° 💧 None 💨 10 mph H 75%30.18 inHg

3:00 AM

Mostly cloudy night

56° 💧 None 💨 11 mph H 83%30.18 inHg

6:00 AM

Light rain

54° 💧 None 💨 10 mph H 87%30.21 inHg

9:00 AM

Overcast

57° 💧 None 💨 10 mph H 84%30.21 inHg

12:00 PM

Overcast

59° 💧 None 💨 11 mph H 78%30.18 inHg

3:00 PM

Light rain

63° 💧 None 💨 13 mph H 72%30.12 inHg

6:00 PM

Overcast

60° 💧 None 💨 12 mph H 88%30.12 inHg

Friday

12:00 AM

Moderate rain

56° 💧 None 💨 6 mph H 99%30.12 inHg

6:00 AM

Moderate rain

54° 💧 None 💨 5 mph H 99%30.15 inHg

12:00 PM

Light rain

54° 💧 None 💨 7 mph H 97%30.24 inHg

6:00 PM

Mostly sunny

61° 💧 None 💨 2 mph H 64%30.21 inHg

Saturday

12:00 AM

Clear night

53° 💧 None 💨 4 mph H 79%30.21 inHg

6:00 AM

Mostly cloudy night

56° 💧 None 💨 6 mph H 78%30.27 inHg

12:00 PM

Mostly sunny

67° 💧 None 💨 4 mph H 57%30.30 inHg

6:00 PM

Sunny

66° 💧 None 💨 2 mph H 56%30.21 inHg

Sunday

12:00 AM

Clear night

55° 💧 None 💨 7 mph H 72%30.24 inHg

6:00 AM

Clear night

52° 💧 None 💨 5 mph H 79%30.15 inHg

12:00 PM

Overcast

74° 💧 None 💨 11 mph H 46%30.00 inHg

6:00 PM

Mostly cloudy

73° 💧 None 💨 3 mph H 54%29.85 inHg

Monday

12:00 AM

Partly cloudy night

58° 💧 None 💨 5 mph H 64%29.85 inHg

6:00 AM

Partly cloudy night

61° 💧 None 💨 8 mph H 48%29.88 inHg

12:00 PM

Overcast

74° 💧 None 💨 10 mph H 37%29.94 inHg

6:00 PM

Mostly sunny

72° 💧 None 💨 4 mph H 45%29.88 inHg

Tuesday

12:00 AM

Mostly clear night

59° 💧 None 💨 4 mph H 61%29.94 inHg

6:00 AM

Partly cloudy night

59° 💧 None 💨 7 mph H 60%29.91 inHg

12:00 PM

Partly cloudy

77° 💧 None 💨 18 mph H 43%29.83 inHg

6:00 PM

Sunny

78° 💧 None 💨 8 mph H 44%29.74 inHg

Wednesday

12:00 AM

Mostly clear night

63° 💧 None 💨 2 mph H 71%29.77 inHg

6:00 AM

Partly cloudy night

60° 💧 None 💨 3 mph H 79%29.74 inHg

12:00 PM

Mostly sunny

75° 💧 None 💨 4 mph H 48%29.80 inHg

6:00 PM

Mostly sunny

73° 💧 None 💨 5 mph H 56%29.83 inHg

Thursday

12:00 AM

Clear night

66° 💧 None 💨 13 mph H 61%29.97 inHg

6:00 AM

Clear night

63° 💧 None 💨 8 mph H 56%30.03 inHg

12:00 PM

Sunny

79° 💧 None 💨 5 mph H 38%30.09 inHg

6:00 PM

Sunny

77° 💧 None 💨 4 mph H 45%30.03 inHg

Friday

12:00 AM

Clear night

66° 💧 None 💨 8 mph H 58%30.12 inHg

6:00 AM

Clear night

62° 💧 None 💨 5 mph H 71%30.15 inHg

12:00 PM

Partly cloudy

80° 💧 None 💨 13 mph H 45%30.18 inHg

6:00 PM

Overcast

77° 💧 None 💨 11 mph H 46%30.18 inHg

Saturday

12:00 AM

Overcast night

63° 💧 None 💨 8 mph H 94%30.30 inHg

6:00 AM

Partly cloudy night

61° 💧 None 💨 5 mph H 88%30.27 inHg

12:00 PM

Sunny

76° 💧 None 💨 11 mph H 56%30.24 inHg

6:00 PM

Mostly sunny

71° 💧 None 💨 4 mph H 70%30.18 inHg

In Boulder Canyon and, more broadly, across the state of South Dakota: This evening, skies will feature a mix of sun and clouds with temperatures remaining mild to warm, ranging from 78 to 82 degrees Fahrenheit. Winds will be noticeable from the northwest, reaching up to 23 mph with gusts around 30 mph. No precipitation is expected during the evening hours, so the weather should remain dry. The breeze may make the temperature feel slightly cooler in some areas. As the night progresses, conditions are expected to stay clear of rain, but the brisk northwest wind could continue to be felt into the early morning hours. Overall, it should be a relatively calm and dry evening with comfortable temperatures and breezy conditions.

15-Day Weather Outlook for Boulder Canyon

TomorrowTomorrow

Thunderstorms 63°/47° 💧 None 💨 17 mph

Monday, Sep 14Mon Sep 14

Light thunderstorms 72°/57° 💧 0.484 in 💨 19 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 70°/52° 💧 None 💨 16 mph

Wednesday, Sep 16Wed Sep 16

Moderate rain 78°/55° 💧 0.041 in 💨 17 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 74°/59° 💧 0.324 in 💨 14 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 83°/63° 💧 None 💨 15 mph

Saturday, Sep 19Sat Sep 19

Heavy rain 82°/61° 💧 0.517 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Moderate rain 63°/56° 💧 2.524 in 💨 10 mph

Monday, Sep 21Mon Sep 21

Overcast 62°/51° 💧 0.147 in 💨 18 mph

Tuesday, Sep 22Tue Sep 22

Sunny 63°/40° 💧 None 💨 15 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 58°/42° 💧 None 💨 11 mph

Thursday, Sep 24Thu Sep 24

Overcast 61°/44° 💧 None 💨 12 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 63°/48° 💧 None 💨 13 mph

Saturday, Sep 26Sat Sep 26

Sunny 73°/55° 💧 0.001 in 💨 13 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Boulder Canyon

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Boulder Canyon

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 3:00 AM

PM2.5 Fine particles Good 0,9µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 2,1µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 58,4µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 1,3µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Boulder Canyon

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 5,6Moderate 😊Good

Tomorrow UV 4,6Moderate 🙂Fair

Monday UV 5,7Moderate 🙂Fair

Tuesday UV 6,0High 🙂Fair

Wednesday UV 5,0Moderate 🙂Fair

Thursday UV 3,0Moderate —Unavailable

Friday UV 6,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,4 9:00 AMUV 1,3 10:00 AMUV 2,7 11:00 AMUV 4,2 12:00 PMUV 5,0 1:00 PMUV 5,6 2:00 PMUV 5,1 3:00 PMUV 3,6 4:00 PMUV 2,3 5:00 PMUV 1,0 6:00 PMUV 0,3

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Boulder Canyon

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · BOULDER CANYON, SOUTH DAKOTA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

33/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 92% Real hourly forecast for the best viewing hour.

☾ Moonlight 0% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 71° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Boulder Canyon were last refreshed today at 2:27 AM. The current forecast period extends through 14/09/2026 at 12:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.