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Current weather in Summit is scattered clouds.

Where can I find the hourly weather forecast for Summit?

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

Is the weather forecast for Summit updated regularly?

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

Now · 8:48 AM

Summit Weather & Hourly Forecast

United States · South Dakota · 57266

52°F

Partly cloudy

Feels like: 46°F

💧 Humidity 91% 🌡 Pressure 30.33 inHg 💨 Wind 10 mph 👁 Visibility 16.0 mi ☁ Clouds 45% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:14 AM 🌇 Sunset 7:27 PM

Hourly Forecast for Summit

Today

9:00 AM

Partly cloudy

52° 💧 0.000 in 💨 10 mph H 91%30.33 inHg

12:00 PM

Overcast

58° 💧 0.001 in 💨 12 mph H 75%30.33 inHg

3:00 PM

Overcast

60° 💧 0.000 in 💨 12 mph H 66%30.27 inHg

6:00 PM

Partly cloudy

59° 💧 None 💨 12 mph H 62%30.24 inHg

9:00 PM

Mostly clear night

53° 💧 None 💨 9 mph H 77%30.27 inHg

Tomorrow

12:00 AM

Overcast night

52° 💧 None 💨 10 mph H 82%30.30 inHg

3:00 AM

Overcast night

54° 💧 None 💨 10 mph H 85%30.27 inHg

6:00 AM

Mostly clear night

52° 💧 None 💨 9 mph H 93%30.30 inHg

9:00 AM

Partly cloudy

55° 💧 None 💨 12 mph H 87%30.30 inHg

12:00 PM

Mostly cloudy

62° 💧 None 💨 17 mph H 68%30.27 inHg

3:00 PM

Mostly cloudy

63° 💧 None 💨 17 mph H 69%30.21 inHg

6:00 PM

Overcast

63° 💧 0.005 in 💨 17 mph H 70%30.18 inHg

9:00 PM

Light thunderstorms

58° 💧 0.019 in 💨 16 mph H 84%30.18 inHg

Thursday

12:00 AM

Light thunderstorms

57° 💧 0.112 in 💨 17 mph H 87%30.15 inHg

3:00 AM

Overcast night

58° 💧 0.012 in 💨 14 mph H 88%30.15 inHg

6:00 AM

Mostly cloudy night

57° 💧 None 💨 13 mph H 91%30.12 inHg

Today

9:00 AM

Partly cloudy

52° 💧 None 💨 10 mph H 91%30.33 inHg

10:00 AM

Mostly cloudy

54° 💧 0.000 in 💨 11 mph H 86%30.33 inHg

11:00 AM

Overcast

56° 💧 0.000 in 💨 11 mph H 80%30.33 inHg

12:00 PM

Overcast

58° 💧 0.000 in 💨 12 mph H 75%30.33 inHg

1:00 PM

Overcast

59° 💧 0.000 in 💨 12 mph H 72%30.30 inHg

2:00 PM

Overcast

60° 💧 0.001 in 💨 12 mph H 69%30.30 inHg

3:00 PM

Overcast

60° 💧 0.000 in 💨 12 mph H 66%30.27 inHg

4:00 PM

Mostly cloudy

60° 💧 None 💨 12 mph H 64%30.27 inHg

5:00 PM

Mostly cloudy

60° 💧 None 💨 12 mph H 62%30.24 inHg

6:00 PM

Partly cloudy

59° 💧 None 💨 12 mph H 62%30.24 inHg

7:00 PM

Mostly sunny

57° 💧 None 💨 10 mph H 67%30.24 inHg

8:00 PM

Clear night

54° 💧 None 💨 10 mph H 73%30.27 inHg

9:00 PM

Mostly clear night

53° 💧 None 💨 9 mph H 77%30.27 inHg

10:00 PM

Mostly cloudy night

52° 💧 None 💨 10 mph H 79%30.30 inHg

11:00 PM

Partly cloudy night

52° 💧 None 💨 11 mph H 80%30.30 inHg

Tomorrow

12:00 AM

Overcast night

52° 💧 None 💨 10 mph H 82%30.30 inHg

1:00 AM

Overcast night

53° 💧 None 💨 10 mph H 82%30.30 inHg

2:00 AM

Overcast night

53° 💧 None 💨 10 mph H 83%30.30 inHg

3:00 AM

Overcast night

54° 💧 None 💨 10 mph H 85%30.27 inHg

4:00 AM

Mostly cloudy night

53° 💧 None 💨 10 mph H 89%30.27 inHg

5:00 AM

Mostly cloudy night

54° 💧 None 💨 10 mph H 89%30.27 inHg

6:00 AM

Mostly clear night

52° 💧 None 💨 9 mph H 93%30.30 inHg

7:00 AM

Partly cloudy night

52° 💧 None 💨 9 mph H 95%30.30 inHg

8:00 AM

Partly cloudy

52° 💧 None 💨 10 mph H 94%30.30 inHg

9:00 AM

Partly cloudy

55° 💧 None 💨 12 mph H 87%30.30 inHg

10:00 AM

Partly cloudy

57° 💧 None 💨 14 mph H 81%30.30 inHg

11:00 AM

Mostly cloudy

61° 💧 None 💨 16 mph H 71%30.27 inHg

12:00 PM

Mostly cloudy

62° 💧 None 💨 17 mph H 68%30.27 inHg

1:00 PM

Overcast

64° 💧 None 💨 17 mph H 66%30.24 inHg

2:00 PM

Overcast

64° 💧 None 💨 17 mph H 66%30.24 inHg

3:00 PM

Mostly cloudy

63° 💧 None 💨 17 mph H 69%30.21 inHg

4:00 PM

Mostly cloudy

64° 💧 None 💨 18 mph H 67%30.18 inHg

5:00 PM

Overcast

64° 💧 None 💨 18 mph H 68%30.18 inHg

6:00 PM

Overcast

63° 💧 None 💨 17 mph H 70%30.18 inHg

7:00 PM

Overcast

61° 💧 None 💨 14 mph H 74%30.21 inHg

8:00 PM

Light rain

59° 💧 0.005 in 💨 14 mph H 79%30.21 inHg

9:00 PM

Light thunderstorms

58° 💧 0.007 in 💨 16 mph H 84%30.18 inHg

10:00 PM

Overcast night

58° 💧 None 💨 17 mph H 83%30.18 inHg

11:00 PM

Light rain

58° 💧 0.012 in 💨 17 mph H 83%30.18 inHg

Thursday

12:00 AM

Light thunderstorms

57° 💧 0.094 in 💨 17 mph H 87%30.15 inHg

1:00 AM

Light rain

57° 💧 0.008 in 💨 15 mph H 87%30.15 inHg

2:00 AM

Light rain

57° 💧 0.010 in 💨 15 mph H 88%30.15 inHg

3:00 AM

Overcast night

58° 💧 0.001 in 💨 14 mph H 88%30.15 inHg

4:00 AM

Light rain

58° 💧 0.007 in 💨 13 mph H 89%30.15 inHg

5:00 AM

Mostly clear night

57° 💧 0.004 in 💨 13 mph H 90%30.15 inHg

6:00 AM

Mostly cloudy night

57° 💧 None 💨 13 mph H 91%30.12 inHg

7:00 AM

Overcast night

58° 💧 None 💨 13 mph H 91%30.12 inHg

8:00 AM

Overcast

59° 💧 None 💨 13 mph H 89%30.12 inHg

9:00 AM

Overcast

60° 💧 None 💨 11 mph H 87%30.12 inHg

10:00 AM

Overcast

61° 💧 None 💨 11 mph H 86%30.12 inHg

11:00 AM

Overcast

64° 💧 None 💨 13 mph H 81%30.12 inHg

12:00 PM

Overcast

65° 💧 None 💨 11 mph H 81%30.15 inHg

1:00 PM

Overcast

66° 💧 0.001 in 💨 10 mph H 81%30.12 inHg

2:00 PM

Light rain

66° 💧 0.005 in 💨 9 mph H 79%30.12 inHg

3:00 PM

Light rain

67° 💧 0.005 in 💨 9 mph H 78%30.12 inHg

4:00 PM

Light rain

68° 💧 0.006 in 💨 8 mph H 78%30.12 inHg

5:00 PM

Light rain

67° 💧 0.006 in 💨 8 mph H 81%30.12 inHg

6:00 PM

Mostly cloudy

66° 💧 0.003 in 💨 8 mph H 84%30.12 inHg

7:00 PM

Mostly cloudy

64° 💧 0.001 in 💨 6 mph H 88%30.15 inHg

Friday

4:00 AM

Overcast night

58° 💧 None 💨 7 mph H 96%30.18 inHg

7:00 AM

Overcast night

57° 💧 None 💨 9 mph H 97%30.18 inHg

10:00 AM

Overcast

57° 💧 None 💨 11 mph H 98%30.18 inHg

1:00 PM

Overcast

62° 💧 None 💨 16 mph H 83%30.15 inHg

4:00 PM

Light rain

60° 💧 None 💨 16 mph H 86%30.09 inHg

7:00 PM

Overcast

59° 💧 None 💨 17 mph H 95%30.06 inHg

10:00 PM

Light rain

58° 💧 None 💨 17 mph H 96%30.03 inHg

Saturday

1:00 AM

Heavy rain

57° 💧 None 💨 15 mph H 98%29.97 inHg

4:00 AM

Light rain

58° 💧 None 💨 14 mph H 97%29.91 inHg

7:00 AM

Overcast night

60° 💧 None 💨 12 mph H 96%29.88 inHg

10:00 AM

Overcast

63° 💧 None 💨 12 mph H 94%29.85 inHg

1:00 PM

Overcast

69° 💧 None 💨 13 mph H 85%29.83 inHg

4:00 PM

Overcast

71° 💧 None 💨 11 mph H 80%29.83 inHg

7:00 PM

Mostly cloudy

69° 💧 None 💨 6 mph H 87%29.85 inHg

10:00 PM

Clear night

64° 💧 None 💨 8 mph H 96%29.91 inHg

Sunday

1:00 AM

Clear night

63° 💧 None 💨 7 mph H 96%29.91 inHg

4:00 AM

Mostly clear night

61° 💧 None 💨 4 mph H 98%29.91 inHg

7:00 AM

Overcast night

60° 💧 None 💨 1 mph H 100%29.94 inHg

10:00 AM

Overcast

65° 💧 None 💨 5 mph H 99%29.97 inHg

1:00 PM

Mostly sunny

72° 💧 None 💨 10 mph H 78%29.97 inHg

4:00 PM

Partly cloudy

71° 💧 None 💨 10 mph H 86%29.91 inHg

7:00 PM

Mostly sunny

68° 💧 None 💨 7 mph H 93%29.91 inHg

10:00 PM

Mostly clear night

66° 💧 None 💨 8 mph H 95%29.91 inHg

Monday

1:00 AM

Mostly clear night

64° 💧 None 💨 8 mph H 96%29.88 inHg

7:00 AM

Mostly cloudy night

63° 💧 None 💨 6 mph H 98%29.91 inHg

1:00 PM

Overcast

61° 💧 None 💨 2 mph H 100%29.91 inHg

7:00 PM

Mostly cloudy

67° 💧 None 💨 7 mph H 90%29.88 inHg

Tuesday

1:00 AM

Overcast night

65° 💧 None 💨 11 mph H 89%29.88 inHg

7:00 AM

Light rain

62° 💧 None 💨 9 mph H 95%29.91 inHg

1:00 PM

Moderate rain

59° 💧 None 💨 7 mph H 100%29.91 inHg

7:00 PM

Moderate rain

62° 💧 None 💨 6 mph H 94%29.91 inHg

Wednesday

1:00 AM

Overcast night

62° 💧 None 💨 7 mph H 100%29.88 inHg

7:00 AM

Overcast night

60° 💧 None 💨 4 mph H 100%29.94 inHg

1:00 PM

Overcast

57° 💧 None 💨 9 mph H 100%29.94 inHg

7:00 PM

Overcast

64° 💧 None 💨 12 mph H 78%29.97 inHg

Thursday

1:00 AM

Overcast night

61° 💧 None 💨 12 mph H 87%29.94 inHg

7:00 AM

Overcast night

59° 💧 None 💨 10 mph H 93%29.97 inHg

1:00 PM

Overcast

58° 💧 None 💨 9 mph H 92%30.00 inHg

7:00 PM

Light rain

61° 💧 None 💨 11 mph H 92%29.97 inHg

Friday

1:00 AM

Light rain

60° 💧 None 💨 8 mph H 99%29.91 inHg

7:00 AM

Overcast night

62° 💧 None 💨 6 mph H 96%29.91 inHg

1:00 PM

Overcast

62° 💧 None 💨 5 mph H 98%29.91 inHg

7:00 PM

Overcast

72° 💧 None 💨 9 mph H 76%29.91 inHg

Saturday

1:00 AM

Clear night

69° 💧 None 💨 4 mph H 86%29.85 inHg

7:00 AM

Partly cloudy night

67° 💧 None 💨 11 mph H 91%29.85 inHg

1:00 PM

Overcast

65° 💧 None 💨 14 mph H 95%29.83 inHg

7:00 PM

Overcast

72° 💧 None 💨 21 mph H 76%29.77 inHg

Sunday

1:00 AM

Light rain

68° 💧 None 💨 14 mph H 87%29.77 inHg

7:00 AM

Clear night

57° 💧 None 💨 14 mph H 70%29.97 inHg

1:00 PM

Overcast

51° 💧 None 💨 17 mph H 77%30.15 inHg

7:00 PM

Mostly sunny

55° 💧 None 💨 15 mph H 57%30.27 inHg

Monday

1:00 AM

Clear night

52° 💧 None 💨 4 mph H 67%30.27 inHg

7:00 AM

Clear night

47° 💧 None 💨 3 mph H 82%30.30 inHg

1:00 PM

Sunny

43° 💧 None 💨 6 mph H 84%30.27 inHg

7:00 PM

Sunny

58° 💧 None 💨 12 mph H 52%30.21 inHg

Tuesday

1:00 AM

Clear night

53° 💧 None 💨 7 mph H 63%30.12 inHg

7:00 AM

Clear night

49° 💧 None 💨 13 mph H 81%30.12 inHg

1:00 PM

Sunny

47° 💧 None 💨 12 mph H 88%30.09 inHg

7:00 PM

Sunny

64° 💧 None 💨 9 mph H 62%30.12 inHg

Wednesday

1:00 AM

Clear night

58° 💧 None 💨 6 mph H 75%30.09 inHg

In Summit and, more broadly, across the state of South Dakota: This morning will start with mostly cloudy skies and cool temperatures around 52 to 56 degrees Fahrenheit. Winds will be coming from the east at about 10 mph, with gusts reaching up to 17 mph. There is a possibility of light rain throughout the day, with total accumulation around 0.16 inches. As the afternoon progresses, the cloudy conditions are expected to persist, and the chance of rain remains high. Temperatures are likely to stay in the same cool range, and breezes from the east will continue at similar speeds. Overall, it will be a damp, breezy day with limited sunshine. Be prepared for possible showers if you're heading outdoors.

15-Day Weather Outlook for Summit

TomorrowTomorrow

Light thunderstorms 64°/52° 💧 None 💨 18 mph

Thursday, Sep 24Thu Sep 24

Light thunderstorms 68°/57° 💧 0.157 in 💨 17 mph

Friday, Sep 25Fri Sep 25

Light rain 61°/57° 💧 0.079 in 💨 17 mph

Saturday, Sep 26Sat Sep 26

Light rain 73°/58° 💧 0.281 in 💨 17 mph

Sunday, Sep 27Sun Sep 27

Light rain 74°/59° 💧 0.012 in 💨 9 mph

Monday, Sep 28Mon Sep 28

Mostly cloudy 67°/61° 💧 0.422 in 💨 11 mph

Tuesday, Sep 29Tue Sep 29

Moderate rain 62°/59° 💧 1.046 in 💨 9 mph

Wednesday, Sep 30Wed Sep 30

Overcast 64°/57° 💧 0.011 in 💨 12 mph

Thursday, Oct 1Thu Oct 1

Light rain 61°/58° 💧 0.382 in 💨 11 mph

Friday, Oct 2Fri Oct 2

Overcast 72°/62° 💧 0.054 in 💨 9 mph

Saturday, Oct 3Sat Oct 3

Light rain 72°/65° 💧 0.043 in 💨 21 mph

Sunday, Oct 4Sun Oct 4

Overcast 57°/51° 💧 0.002 in 💨 17 mph

Monday, Oct 5Mon Oct 5

Sunny 58°/43° 💧 None 💨 12 mph

Tuesday, Oct 6Tue Oct 6

Sunny 64°/47° 💧 None 💨 13 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Summit

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Summit

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 AM

PM2.5 Fine particles Good 1,2µg/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 1,3µg/m³

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

O₃ Ozone Good 31,3µg/m³

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

NO₂ Nitrogen dioxide Good 3,1µg/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 Summit

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 3,0Moderate 😊Good

Tomorrow UV 3,6Moderate 🙂Fair

Thursday UV 0,5Low 🙂Fair

Friday UV 0,4Low 🙂Fair

Saturday UV 5,0Moderate 🙂Fair

Sunday UV 6,0High —Unavailable

Monday UV 6,0High —Unavailable

Hourly UV index today

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

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 Summit

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SUMMIT, SOUTH DAKOTA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 6:00 AM–7:00 AM.

86/100Best-hour score

BEST TIME TONIGHT 6:00 AM–7:00 AM Astronomical darkness: 9:05 PM–5:37 AM

☁ Cloud cover 14% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 56° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min65%

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

SEP 20–NOV 20

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

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 Summit were last refreshed today at 8:48 AM. The current forecast period extends through 24/09/2026 at 6:00 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.