What is the weather in Custer right now?

Current weather in Custer is clear sky.

Where can I find the hourly weather forecast for Custer?

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

Is the weather forecast for Custer updated regularly?

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

Now · 3:06 PM

Custer Weather & Hourly Forecast

United States · South Dakota · 57730

80°F

Sunny

Feels like: 79°F

💧 Humidity 29% 🌡 Pressure 29.71 inHg 💨 Wind 11 mph 👁 Visibility 6.2 mi ☁ Clouds 2% ☀️ UV index 7.2 · High 🌅 Sunrise 6:19 AM 🌇 Sunset 7:29 PM

Hourly Forecast for Custer

Today

4:00 PM

Sunny

80° 💧 None 💨 17 mph H 28%29.71 inHg

7:00 PM

Mostly cloudy

71° 💧 None 💨 7 mph H 36%29.77 inHg

10:00 PM

Mostly cloudy night

68° 💧 None 💨 8 mph H 41%29.80 inHg

Tomorrow

1:00 AM

Mostly clear night

65° 💧 None 💨 7 mph H 45%29.80 inHg

4:00 AM

Mostly clear night

61° 💧 None 💨 7 mph H 43%29.77 inHg

7:00 AM

Sunny

61° 💧 None 💨 7 mph H 45%29.80 inHg

10:00 AM

Sunny

72° 💧 None 💨 13 mph H 20%29.77 inHg

1:00 PM

Sunny

76° 💧 None 💨 14 mph H 10%29.74 inHg

4:00 PM

Sunny

79° 💧 None 💨 14 mph H 10%29.74 inHg

7:00 PM

Overcast

71° 💧 None 💨 5 mph H 17%29.77 inHg

10:00 PM

Mostly cloudy night

66° 💧 None 💨 4 mph H 17%29.83 inHg

Friday

1:00 AM

Clear night

62° 💧 None 💨 2 mph H 16%29.83 inHg

4:00 AM

Clear night

57° 💧 None 💨 1 mph H 17%29.83 inHg

7:00 AM

Sunny

65° 💧 None 💨 2 mph H 22%29.85 inHg

10:00 AM

Mostly cloudy

82° 💧 None 💨 5 mph H 19%29.80 inHg

1:00 PM

Sunny

87° 💧 None 💨 8 mph H 15%29.77 inHg

Today

4:00 PM

Sunny

80° 💧 None 💨 17 mph H 28%29.71 inHg

5:00 PM

Sunny

79° 💧 None 💨 9 mph H 27%29.71 inHg

6:00 PM

Mostly sunny

78° 💧 None 💨 9 mph H 24%29.68 inHg

7:00 PM

Mostly cloudy

71° 💧 None 💨 7 mph H 36%29.77 inHg

8:00 PM

Mostly cloudy night

66° 💧 None 💨 7 mph H 45%29.80 inHg

9:00 PM

Mostly cloudy night

67° 💧 None 💨 5 mph H 46%29.80 inHg

10:00 PM

Mostly cloudy night

68° 💧 None 💨 8 mph H 41%29.80 inHg

11:00 PM

Mostly cloudy night

67° 💧 None 💨 8 mph H 42%29.80 inHg

Tomorrow

12:00 AM

Mostly cloudy night

66° 💧 None 💨 9 mph H 42%29.80 inHg

1:00 AM

Mostly clear night

65° 💧 None 💨 7 mph H 45%29.80 inHg

2:00 AM

Clear night

66° 💧 None 💨 7 mph H 43%29.77 inHg

3:00 AM

Clear night

64° 💧 None 💨 6 mph H 44%29.77 inHg

4:00 AM

Mostly clear night

61° 💧 None 💨 7 mph H 43%29.77 inHg

5:00 AM

Clear night

61° 💧 None 💨 7 mph H 45%29.80 inHg

6:00 AM

Clear night

60° 💧 None 💨 7 mph H 45%29.80 inHg

7:00 AM

Sunny

61° 💧 None 💨 7 mph H 45%29.80 inHg

8:00 AM

Sunny

67° 💧 None 💨 12 mph H 38%29.77 inHg

9:00 AM

Mostly sunny

72° 💧 None 💨 13 mph H 31%29.77 inHg

10:00 AM

Sunny

72° 💧 None 💨 13 mph H 20%29.77 inHg

11:00 AM

Sunny

74° 💧 None 💨 12 mph H 13%29.77 inHg

12:00 PM

Sunny

72° 💧 None 💨 14 mph H 12%29.74 inHg

1:00 PM

Sunny

76° 💧 None 💨 14 mph H 10%29.74 inHg

2:00 PM

Sunny

79° 💧 None 💨 15 mph H 10%29.74 inHg

3:00 PM

Sunny

80° 💧 None 💨 15 mph H 10%29.74 inHg

4:00 PM

Sunny

79° 💧 None 💨 14 mph H 10%29.74 inHg

5:00 PM

Partly cloudy

80° 💧 None 💨 13 mph H 11%29.74 inHg

6:00 PM

Partly cloudy

77° 💧 None 💨 10 mph H 12%29.74 inHg

7:00 PM

Overcast

71° 💧 None 💨 5 mph H 17%29.77 inHg

8:00 PM

Overcast night

69° 💧 None 💨 6 mph H 19%29.83 inHg

9:00 PM

Mostly cloudy night

67° 💧 None 💨 6 mph H 18%29.83 inHg

10:00 PM

Mostly cloudy night

66° 💧 None 💨 4 mph H 17%29.83 inHg

11:00 PM

Partly cloudy night

65° 💧 None 💨 2 mph H 17%29.83 inHg

Friday

12:00 AM

Partly cloudy night

64° 💧 None 💨 2 mph H 16%29.83 inHg

1:00 AM

Clear night

62° 💧 None 💨 2 mph H 16%29.83 inHg

2:00 AM

Clear night

60° 💧 None 💨 1 mph H 16%29.83 inHg

3:00 AM

Clear night

58° 💧 None 💨 1 mph H 16%29.83 inHg

4:00 AM

Clear night

57° 💧 None 💨 1 mph H 17%29.83 inHg

5:00 AM

Mostly clear night

56° 💧 None 💨 2 mph H 17%29.83 inHg

6:00 AM

Mostly clear night

57° 💧 None 💨 2 mph H 18%29.83 inHg

7:00 AM

Sunny

65° 💧 None 💨 2 mph H 22%29.85 inHg

8:00 AM

Partly cloudy

72° 💧 None 💨 0 mph H 24%29.83 inHg

9:00 AM

Mostly cloudy

77° 💧 None 💨 4 mph H 22%29.83 inHg

10:00 AM

Mostly cloudy

82° 💧 None 💨 5 mph H 19%29.80 inHg

11:00 AM

Partly cloudy

85° 💧 None 💨 7 mph H 16%29.80 inHg

12:00 PM

Partly cloudy

86° 💧 None 💨 8 mph H 16%29.77 inHg

1:00 PM

Sunny

87° 💧 None 💨 8 mph H 15%29.77 inHg

2:00 PM

Sunny

88° 💧 None 💨 11 mph H 14%29.74 inHg

3:00 PM

Sunny

88° 💧 None 💨 10 mph H 15%29.74 inHg

4:00 PM

Sunny

88° 💧 None 💨 8 mph H 15%29.74 inHg

5:00 PM

Sunny

88° 💧 None 💨 8 mph H 15%29.71 inHg

6:00 PM

Sunny

86° 💧 None 💨 8 mph H 17%29.71 inHg

7:00 PM

Mostly cloudy

77° 💧 None 💨 3 mph H 25%29.74 inHg

8:00 PM

Mostly cloudy night

73° 💧 None 💨 1 mph H 27%29.77 inHg

9:00 PM

Mostly cloudy night

72° 💧 None 💨 4 mph H 32%29.85 inHg

10:00 PM

Mostly cloudy night

69° 💧 None 💨 2 mph H 39%29.85 inHg

11:00 PM

Mostly cloudy night

69° 💧 None 💨 7 mph H 37%29.83 inHg

Saturday

12:00 AM

Mostly cloudy night

69° 💧 None 💨 7 mph H 33%29.83 inHg

1:00 AM

Light rain

68° 💧 0.01 in 💨 6 mph H 38%29.83 inHg

2:00 AM

Clear night

67° 💧 None 💨 5 mph H 38%29.83 inHg

3:00 AM

Clear night

67° 💧 None 💨 4 mph H 38%29.83 inHg

4:00 AM

Clear night

67° 💧 None 💨 5 mph H 35%29.85 inHg

5:00 AM

Clear night

68° 💧 None 💨 6 mph H 31%29.85 inHg

6:00 AM

Clear night

68° 💧 None 💨 5 mph H 30%29.85 inHg

7:00 AM

Sunny

68° 💧 None 💨 6 mph H 32%29.88 inHg

8:00 AM

Sunny

73° 💧 None 💨 6 mph H 34%29.88 inHg

9:00 AM

Light rain

79° 💧 0.00 in 💨 8 mph H 25%29.85 inHg

10:00 AM

Light rain

82° 💧 0.00 in 💨 8 mph H 23%29.83 inHg

11:00 AM

Partly cloudy

86° 💧 None 💨 6 mph H 18%29.83 inHg

12:00 PM

Partly cloudy

88° 💧 None 💨 7 mph H 17%29.83 inHg

1:00 PM

Sunny

88° 💧 None 💨 7 mph H 17%29.80 inHg

2:00 PM

Mostly sunny

88° 💧 None 💨 11 mph H 17%29.80 inHg

3:00 PM

Partly cloudy

88° 💧 None 💨 12 mph H 17%29.80 inHg

4:00 PM

Partly cloudy

87° 💧 None 💨 9 mph H 18%29.80 inHg

5:00 PM

Partly cloudy

86° 💧 None 💨 9 mph H 18%29.80 inHg

6:00 PM

Partly cloudy

83° 💧 None 💨 9 mph H 21%29.80 inHg

7:00 PM

Mostly sunny

75° 💧 None 💨 6 mph H 30%29.83 inHg

8:00 PM

Clear night

72° 💧 None 💨 5 mph H 31%29.85 inHg

9:00 PM

Clear night

73° 💧 None 💨 4 mph H 29%29.85 inHg

10:00 PM

Clear night

72° 💧 None 💨 4 mph H 29%29.85 inHg

11:00 PM

Clear night

71° 💧 None 💨 5 mph H 30%29.85 inHg

Sunday

12:00 AM

Clear night

70° 💧 None 💨 4 mph H 31%29.85 inHg

1:00 AM

Clear night

70° 💧 None 💨 3 mph H 32%29.85 inHg

2:00 AM

Clear night

70° 💧 None 💨 4 mph H 32%29.85 inHg

3:00 AM

Clear night

69° 💧 None 💨 4 mph H 33%29.85 inHg

4:00 AM

Clear night

69° 💧 None 💨 5 mph H 33%29.85 inHg

5:00 AM

Clear night

69° 💧 None 💨 6 mph H 34%29.85 inHg

6:00 AM

Clear night

69° 💧 None 💨 6 mph H 35%29.85 inHg

7:00 AM

Sunny

69° 💧 None 💨 6 mph H 33%29.88 inHg

8:00 AM

Sunny

76° 💧 None 💨 3 mph H 28%29.85 inHg

9:00 AM

Sunny

83° 💧 None 💨 2 mph H 20%29.83 inHg

10:00 AM

Sunny

88° 💧 None 💨 2 mph H 17%29.83 inHg

11:00 AM

Sunny

88° 💧 None 💨 4 mph H 17%29.80 inHg

12:00 PM

Mostly sunny

87° 💧 None 💨 7 mph H 18%29.80 inHg

1:00 PM

Overcast

85° 💧 None 💨 4 mph H 19%29.80 inHg

2:00 PM

Overcast

88° 💧 None 💨 1 mph H 18%29.77 inHg

In Custer and, more broadly, across the state of South Dakota: Clear skies will continue into the evening, with temperatures remaining mild to warm, ranging from 78 to 83 degrees Fahrenheit. Light east winds are expected, averaging around 7 mph with gusts up to 11 mph. No precipitation is anticipated, making for a calm and pleasant evening. The gentle breeze and clear skies should provide a comfortable end to the day. Temperatures will gradually cool as the night progresses, but conditions are expected to remain dry and clear throughout.

15-Day Weather Outlook for Custer

TomorrowTomorrow

Sunny 79°/58° 💧 None 💨 15 mph

Friday, Sep 4Fri Sep 4

Mostly sunny 88°/64° 💧 None 💨 11 mph

Saturday, Sep 5Sat Sep 5

Light rain 88°/68° 💧 0.01 in 💨 10 mph

Sunday, Sep 6Sun Sep 6

Light rain 89°/68° 💧 0.00 in 💨 10 mph

Monday, Sep 7Mon Sep 7

Overcast 81°/62° 💧 None 💨 22 mph

Tuesday, Sep 8Tue Sep 8

Mostly cloudy 71°/50° 💧 None 💨 15 mph

Wednesday, Sep 9Wed Sep 9

Overcast 68°/49° 💧 None 💨 11 mph

Thursday, Sep 10Thu Sep 10

Light rain 77°/53° 💧 0.07 in 💨 10 mph

Friday, Sep 11Fri Sep 11

Moderate rain 78°/59° 💧 0.21 in 💨 10 mph

Saturday, Sep 12Sat Sep 12

Heavy rain 73°/56° 💧 0.55 in 💨 15 mph

Sunday, Sep 13Sun Sep 13

Partly cloudy 72°/52° 💧 None 💨 21 mph

Monday, Sep 14Mon Sep 14

Sunny 74°/49° 💧 None 💨 14 mph

Tuesday, Sep 15Tue Sep 15

Sunny 80°/50° 💧 None 💨 18 mph

Wednesday, Sep 16Wed Sep 16

Sunny 69°/48° 💧 None 💨 15 mph

Thursday, Sep 17Thu Sep 17

Light rain 49°/38° 💧 0.10 in 💨 11 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Custer

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Custer

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 4:00 PM

PM2.5 Fine particles Good 1,6µg/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 3,1µg/m³

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

O₃ Ozone Fair 82,2µg/m³

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

NO₂ Nitrogen dioxide Good 0,5µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Custer

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 8,0Very high 🙂Fair

Tomorrow UV 7,6High 🙂Fair

Friday UV 7,6High 🙂Fair

Saturday UV 7,9High 🙂Fair

Sunday UV 6,0High 🙂Fair

Monday UV 7,0High —Unavailable

Tuesday UV 7,0High —Unavailable

Hourly UV index today

4:00 PMUV 3,4 5:00 PMUV 1,2 6:00 PMUV 0,5 7:00 PMUV 0,0

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

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure. Dry air can increase hydration needs.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Custer

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 3.85 Population: 2,341

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Forecast data for Custer were last refreshed today at 2:51 PM. The current forecast period extends through 04/09/2026 at 1:00 PM. 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.