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Current weather in Reliance is overcast clouds.

Where can I find the hourly weather forecast for Reliance?

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

Is the weather forecast for Reliance updated regularly?

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

Now · 1:14 AM

Reliance Weather & Hourly Forecast

United States · South Dakota · 57569

78°F

Overcast night

Feels like: 81°F

💧 Humidity 76% 🌡 Pressure 29.85 inHg 💨 Wind 9 mph 👁 Visibility 24.5 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Reliance

Today

2:00 AM

Overcast night

77° 💧 None 💨 9 mph H 79%29.85 inHg

5:00 AM

Partly cloudy night

75° 💧 None 💨 8 mph H 87%29.85 inHg

8:00 AM

Sunny

75° 💧 None 💨 7 mph H 83%29.85 inHg

11:00 AM

Thunderstorms

74° 💧 0.203 in 💨 22 mph H 93%29.94 inHg

2:00 PM

Partly cloudy

83° 💧 0.002 in 💨 14 mph H 68%29.85 inHg

5:00 PM

Partly cloudy

83° 💧 None 💨 17 mph H 71%29.80 inHg

8:00 PM

Sunny

78° 💧 None 💨 12 mph H 79%29.80 inHg

11:00 PM

Clear night

74° 💧 None 💨 8 mph H 89%29.88 inHg

Tomorrow

2:00 AM

Mostly cloudy night

72° 💧 None 💨 12 mph H 91%29.85 inHg

5:00 AM

Overcast night

72° 💧 None 💨 14 mph H 89%29.80 inHg

8:00 AM

Overcast

73° 💧 None 💨 14 mph H 81%29.80 inHg

11:00 AM

Strong thunderstorm

78° 💧 0.005 in 💨 20 mph H 74%29.77 inHg

2:00 PM

Mostly cloudy

88° 💧 0.000 in 💨 18 mph H 58%29.71 inHg

5:00 PM

Light thunderstorms

84° 💧 0.132 in 💨 12 mph H 66%29.68 inHg

8:00 PM

Mostly cloudy

77° 💧 0.002 in 💨 18 mph H 82%29.71 inHg

11:00 PM

Partly cloudy night

76° 💧 None 💨 14 mph H 80%29.74 inHg

Today

2:00 AM

Overcast night

77° 💧 None 💨 9 mph H 79%29.85 inHg

3:00 AM

Mostly cloudy night

76° 💧 None 💨 8 mph H 83%29.85 inHg

4:00 AM

Mostly cloudy night

76° 💧 None 💨 8 mph H 86%29.85 inHg

5:00 AM

Partly cloudy night

75° 💧 None 💨 8 mph H 87%29.85 inHg

6:00 AM

Clear night

75° 💧 None 💨 6 mph H 88%29.85 inHg

7:00 AM

Clear night

74° 💧 None 💨 7 mph H 88%29.85 inHg

8:00 AM

Sunny

75° 💧 None 💨 7 mph H 83%29.85 inHg

9:00 AM

Sunny

79° 💧 None 💨 6 mph H 74%29.85 inHg

10:00 AM

Sunny

82° 💧 None 💨 2 mph H 64%29.85 inHg

11:00 AM

Thunderstorms

74° 💧 0.178 in 💨 22 mph H 93%29.94 inHg

12:00 PM

Light thunderstorms

73° 💧 0.019 in 💨 15 mph H 96%29.91 inHg

1:00 PM

Light rain

79° 💧 0.006 in 💨 13 mph H 81%29.88 inHg

2:00 PM

Partly cloudy

83° 💧 0.002 in 💨 14 mph H 68%29.85 inHg

3:00 PM

Partly cloudy

83° 💧 None 💨 18 mph H 69%29.85 inHg

4:00 PM

Partly cloudy

83° 💧 None 💨 17 mph H 69%29.83 inHg

5:00 PM

Partly cloudy

83° 💧 None 💨 17 mph H 71%29.80 inHg

6:00 PM

Sunny

82° 💧 None 💨 16 mph H 71%29.80 inHg

7:00 PM

Sunny

80° 💧 None 💨 15 mph H 74%29.80 inHg

8:00 PM

Sunny

78° 💧 None 💨 12 mph H 79%29.80 inHg

9:00 PM

Clear night

76° 💧 None 💨 10 mph H 83%29.83 inHg

10:00 PM

Clear night

75° 💧 None 💨 8 mph H 86%29.88 inHg

11:00 PM

Clear night

74° 💧 None 💨 8 mph H 89%29.88 inHg

Tomorrow

12:00 AM

Clear night

73° 💧 None 💨 10 mph H 92%29.85 inHg

1:00 AM

Mostly clear night

73° 💧 None 💨 11 mph H 92%29.85 inHg

2:00 AM

Mostly cloudy night

72° 💧 None 💨 12 mph H 91%29.85 inHg

3:00 AM

Mostly cloudy night

72° 💧 None 💨 13 mph H 90%29.83 inHg

4:00 AM

Mostly cloudy night

72° 💧 None 💨 14 mph H 89%29.80 inHg

5:00 AM

Overcast night

72° 💧 None 💨 14 mph H 89%29.80 inHg

6:00 AM

Overcast night

71° 💧 None 💨 14 mph H 88%29.83 inHg

7:00 AM

Overcast night

72° 💧 None 💨 14 mph H 86%29.80 inHg

8:00 AM

Overcast

73° 💧 None 💨 14 mph H 81%29.80 inHg

9:00 AM

Overcast

75° 💧 None 💨 13 mph H 76%29.80 inHg

10:00 AM

Mostly cloudy

77° 💧 None 💨 17 mph H 71%29.77 inHg

11:00 AM

Strong thunderstorm

78° 💧 0.001 in 💨 20 mph H 74%29.77 inHg

12:00 PM

Light thunderstorms

81° 💧 0.004 in 💨 21 mph H 71%29.77 inHg

1:00 PM

Mostly sunny

83° 💧 None 💨 20 mph H 67%29.74 inHg

2:00 PM

Mostly cloudy

88° 💧 None 💨 18 mph H 58%29.71 inHg

3:00 PM

Mostly cloudy

90° 💧 None 💨 17 mph H 51%29.68 inHg

4:00 PM

Strong thunderstorm

91° 💧 0.000 in 💨 16 mph H 51%29.65 inHg

5:00 PM

Light thunderstorms

84° 💧 0.054 in 💨 12 mph H 66%29.68 inHg

6:00 PM

Light thunderstorms

76° 💧 0.073 in 💨 16 mph H 93%29.68 inHg

7:00 PM

Light rain

78° 💧 0.004 in 💨 21 mph H 81%29.71 inHg

8:00 PM

Mostly cloudy

77° 💧 0.001 in 💨 18 mph H 82%29.71 inHg

9:00 PM

Mostly cloudy night

78° 💧 0.000 in 💨 16 mph H 78%29.71 inHg

10:00 PM

Partly cloudy night

77° 💧 None 💨 15 mph H 78%29.74 inHg

11:00 PM

Partly cloudy night

76° 💧 None 💨 14 mph H 80%29.74 inHg

Tuesday

12:00 AM

Partly cloudy night

76° 💧 None 💨 13 mph H 77%29.74 inHg

1:00 AM

Mostly clear night

76° 💧 None 💨 11 mph H 77%29.71 inHg

2:00 AM

Partly cloudy night

75° 💧 None 💨 10 mph H 76%29.71 inHg

3:00 AM

Mostly clear night

75° 💧 None 💨 10 mph H 76%29.71 inHg

4:00 AM

Mostly clear night

75° 💧 None 💨 10 mph H 77%29.71 inHg

5:00 AM

Mostly clear night

74° 💧 None 💨 9 mph H 79%29.71 inHg

6:00 AM

Clear night

73° 💧 None 💨 9 mph H 78%29.74 inHg

7:00 AM

Mostly clear night

71° 💧 None 💨 9 mph H 73%29.77 inHg

4:00 PM

Sunny

84° 💧 None 💨 11 mph H 31%29.88 inHg

7:00 PM

Sunny

80° 💧 None 💨 6 mph H 39%29.88 inHg

10:00 PM

Clear night

75° 💧 None 💨 0 mph H 47%29.91 inHg

Wednesday

1:00 AM

Clear night

69° 💧 None 💨 6 mph H 61%29.97 inHg

4:00 AM

Clear night

68° 💧 None 💨 12 mph H 50%30.06 inHg

7:00 AM

Clear night

64° 💧 None 💨 12 mph H 68%30.12 inHg

10:00 AM

Sunny

67° 💧 None 💨 14 mph H 64%30.15 inHg

1:00 PM

Sunny

74° 💧 None 💨 13 mph H 51%30.15 inHg

4:00 PM

Sunny

77° 💧 None 💨 12 mph H 43%30.09 inHg

7:00 PM

Sunny

75° 💧 None 💨 8 mph H 44%30.06 inHg

10:00 PM

Clear night

70° 💧 None 💨 1 mph H 56%30.06 inHg

Thursday

1:00 AM

Clear night

65° 💧 None 💨 7 mph H 65%30.03 inHg

4:00 AM

Clear night

63° 💧 None 💨 7 mph H 69%30.00 inHg

7:00 AM

Clear night

62° 💧 None 💨 8 mph H 70%30.00 inHg

10:00 AM

Sunny

72° 💧 None 💨 10 mph H 54%29.97 inHg

1:00 PM

Sunny

85° 💧 None 💨 11 mph H 39%29.85 inHg

4:00 PM

Mostly sunny

92° 💧 None 💨 13 mph H 27%29.74 inHg

7:00 PM

Partly cloudy

86° 💧 None 💨 16 mph H 37%29.68 inHg

10:00 PM

Partly cloudy night

80° 💧 None 💨 15 mph H 44%29.68 inHg

Friday

1:00 AM

Clear night

74° 💧 None 💨 7 mph H 55%29.65 inHg

4:00 AM

Clear night

69° 💧 None 💨 4 mph H 72%29.62 inHg

7:00 AM

Clear night

65° 💧 None 💨 3 mph H 87%29.62 inHg

10:00 AM

Sunny

75° 💧 None 💨 7 mph H 63%29.59 inHg

1:00 PM

Sunny

85° 💧 None 💨 3 mph H 45%29.56 inHg

7:00 PM

Sunny

85° 💧 None 💨 3 mph H 55%29.71 inHg

Saturday

1:00 AM

Clear night

85° 💧 None 💨 8 mph H 50%29.62 inHg

7:00 AM

Clear night

72° 💧 None 💨 14 mph H 87%29.53 inHg

1:00 PM

Partly cloudy

78° 💧 None 💨 14 mph H 57%29.35 inHg

7:00 PM

Partly cloudy

71° 💧 None 💨 22 mph H 53%29.68 inHg

Sunday

1:00 AM

Overcast night

67° 💧 None 💨 14 mph H 45%29.83 inHg

7:00 AM

Mostly clear night

62° 💧 None 💨 10 mph H 52%29.97 inHg

1:00 PM

Overcast

56° 💧 None 💨 9 mph H 67%30.12 inHg

7:00 PM

Mostly sunny

66° 💧 None 💨 11 mph H 39%30.21 inHg

Monday

1:00 AM

Mostly clear night

66° 💧 None 💨 7 mph H 34%30.18 inHg

7:00 AM

Clear night

57° 💧 None 💨 8 mph H 62%30.21 inHg

1:00 PM

Sunny

54° 💧 None 💨 9 mph H 68%30.18 inHg

7:00 PM

Sunny

75° 💧 None 💨 17 mph H 35%30.09 inHg

Tuesday

1:00 AM

Clear night

77° 💧 None 💨 12 mph H 40%29.94 inHg

7:00 AM

Clear night

66° 💧 None 💨 13 mph H 56%29.97 inHg

1:00 PM

Sunny

58° 💧 None 💨 3 mph H 78%30.03 inHg

7:00 PM

Sunny

79° 💧 None 💨 7 mph H 30%30.06 inHg

Wednesday

1:00 AM

Clear night

77° 💧 None 💨 6 mph H 31%30.00 inHg

7:00 AM

Mostly clear night

64° 💧 None 💨 5 mph H 64%30.09 inHg

1:00 PM

Sunny

58° 💧 None 💨 5 mph H 89%30.15 inHg

7:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 51%30.15 inHg

Thursday

1:00 AM

Clear night

81° 💧 None 💨 8 mph H 48%30.09 inHg

7:00 AM

Clear night

69° 💧 None 💨 9 mph H 77%30.18 inHg

1:00 PM

Light rain

66° 💧 None 💨 5 mph H 96%30.18 inHg

7:00 PM

Light thunderstorms

72° 💧 None 💨 9 mph H 85%30.12 inHg

Friday

1:00 AM

Overcast night

73° 💧 None 💨 11 mph H 82%30.06 inHg

7:00 AM

Overcast night

67° 💧 None 💨 7 mph H 94%30.06 inHg

1:00 PM

Overcast

67° 💧 None 💨 3 mph H 96%30.00 inHg

7:00 PM

Partly cloudy

74° 💧 None 💨 5 mph H 75%30.00 inHg

Saturday

1:00 AM

Mostly clear night

75° 💧 None 💨 7 mph H 70%29.94 inHg

7:00 AM

Partly cloudy night

65° 💧 None 💨 4 mph H 83%30.00 inHg

1:00 PM

Overcast

63° 💧 None 💨 3 mph H 86%30.00 inHg

7:00 PM

Overcast

67° 💧 None 💨 6 mph H 70%29.97 inHg

Sunday

1:00 AM

Light rain

67° 💧 None 💨 3 mph H 73%29.91 inHg

7:00 AM

Overcast night

60° 💧 None 💨 10 mph H 79%30.06 inHg

1:00 PM

Mostly sunny

53° 💧 None 💨 7 mph H 91%30.21 inHg

In Reliance and, more broadly, across the state of South Dakota: Clear skies will persist through the evening, with temperatures remaining quite warm between 84 and 87 degrees Fahrenheit. Expect moderate southeast winds at around 10 mph, with gusts reaching up to 17 mph. A brief chance of rain exists, with a small accumulation of approximately 0.04 inches possible, and the likelihood of rain reaching nearly 100 percent. Overall, it will stay warm and mostly dry tonight, with occasional breezes from the southeast.

15-Day Weather Outlook for Reliance

TomorrowTomorrow

Strong thunderstorm 91°/71° 💧 None 💨 21 mph

Tuesday, Sep 8Tue Sep 8

Light rain 84°/71° 💧 0.189 in 💨 21 mph

Wednesday, Sep 9Wed Sep 9

Sunny 80°/64° 💧 None 💨 14 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 92°/62° 💧 None 💨 13 mph

Friday, Sep 11Fri Sep 11

Partly cloudy 86°/65° 💧 None 💨 16 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 85°/72° 💧 0.158 in 💨 14 mph

Sunday, Sep 13Sun Sep 13

Partly cloudy 71°/56° 💧 None 💨 22 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 66°/54° 💧 None 💨 11 mph

Tuesday, Sep 15Tue Sep 15

Sunny 77°/58° 💧 None 💨 17 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 79°/58° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Light rain 81°/66° 💧 0.070 in 💨 9 mph

Friday, Sep 18Fri Sep 18

Light thunderstorms 73°/67° 💧 1.348 in 💨 11 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 75°/63° 💧 0.011 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Light rain 67°/53° 💧 0.231 in 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Reliance

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Reliance

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 2:00 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 1,2µg/m³

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

O₃ Ozone Fair 60,8µg/m³

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

NO₂ Nitrogen dioxide Good 1,1µg/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 Reliance

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 7,5High 🙂Fair

Tomorrow UV 7,6High 🙂Fair

Tuesday UV 7,0High 😐Moderate

Wednesday UV 6,0High 🙂Fair

Thursday UV 8,0Very high 😊Good

Friday UV 8,0Very high —Unavailable

Saturday UV 5,0Moderate —Unavailable

Hourly UV index today

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

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

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

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.

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 Reliance

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · RELIANCE, SOUTH DAKOTA

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

67/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 9:48 PM–5:27 AM

☁ Cloud cover 41% Real hourly forecast for the best viewing hour.

☾ Moonlight 30% Waning Crescent · Moon about 33° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 80° 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 min60%

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 Reliance were last refreshed today at 1:14 AM. The current forecast period extends through 07/09/2026 at 11:00 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.