What is the weather in Marion right now?

Current weather in Marion is broken clouds.

Where can I find the hourly weather forecast for Marion?

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

Is the weather forecast for Marion updated regularly?

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

Now · 1:20 AM

Marion Weather & Hourly Forecast

United States · South Dakota · 57043

78°F

Mostly cloudy night

Feels like: 83°F

💧 Humidity 86% 🌡 Pressure 29.91 inHg 💨 Wind 8 mph 👁 Visibility 20.6 mi ☁ Clouds 77% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Marion

Today

2:00 AM

Clear night

77° 💧 None 💨 8 mph H 88%29.91 inHg

5:00 AM

Clear night

76° 💧 None 💨 11 mph H 94%29.88 inHg

8:00 AM

Mostly cloudy

72° 💧 0.001 in 💨 19 mph H 90%29.97 inHg

11:00 AM

Overcast

83° 💧 0.406 in 💨 10 mph H 70%29.91 inHg

2:00 PM

Thunderstorms

72° 💧 0.353 in 💨 13 mph H 94%29.94 inHg

5:00 PM

Mostly cloudy

77° 💧 None 💨 10 mph H 88%29.85 inHg

8:00 PM

Partly cloudy night

74° 💧 None 💨 9 mph H 90%29.85 inHg

11:00 PM

Clear night

72° 💧 None 💨 7 mph H 95%29.94 inHg

Tomorrow

2:00 AM

Mostly clear night

71° 💧 None 💨 10 mph H 97%29.91 inHg

5:00 AM

Partly cloudy night

70° 💧 None 💨 12 mph H 95%29.91 inHg

8:00 AM

Overcast

72° 💧 None 💨 12 mph H 91%29.91 inHg

11:00 AM

Mostly cloudy

78° 💧 0.001 in 💨 14 mph H 81%29.88 inHg

2:00 PM

Mostly cloudy

83° 💧 0.003 in 💨 15 mph H 74%29.83 inHg

5:00 PM

Partly cloudy

85° 💧 None 💨 18 mph H 73%29.77 inHg

8:00 PM

Light rain

81° 💧 0.083 in 💨 13 mph H 79%29.80 inHg

11:00 PM

Light rain

77° 💧 0.016 in 💨 16 mph H 90%29.83 inHg

Today

2:00 AM

Clear night

77° 💧 None 💨 8 mph H 88%29.91 inHg

3:00 AM

Clear night

77° 💧 None 💨 10 mph H 92%29.91 inHg

4:00 AM

Clear night

76° 💧 None 💨 11 mph H 95%29.91 inHg

5:00 AM

Clear night

76° 💧 None 💨 11 mph H 94%29.88 inHg

6:00 AM

Clear night

75° 💧 None 💨 9 mph H 93%29.88 inHg

7:00 AM

Sunny

74° 💧 None 💨 7 mph H 93%29.88 inHg

8:00 AM

Mostly cloudy

72° 💧 0.000 in 💨 19 mph H 90%29.97 inHg

9:00 AM

Mostly sunny

74° 💧 0.001 in 💨 10 mph H 84%29.94 inHg

10:00 AM

Partly cloudy

79° 💧 0.001 in 💨 12 mph H 77%29.91 inHg

11:00 AM

Overcast

83° 💧 None 💨 10 mph H 70%29.91 inHg

12:00 PM

Overcast

87° 💧 0.000 in 💨 5 mph H 62%29.91 inHg

1:00 PM

Severe thunderstorms

73° 💧 0.405 in 💨 17 mph H 90%30.00 inHg

2:00 PM

Thunderstorms

72° 💧 0.278 in 💨 13 mph H 94%29.94 inHg

3:00 PM

Light rain

73° 💧 0.074 in 💨 10 mph H 96%29.91 inHg

4:00 PM

Mostly cloudy

76° 💧 0.001 in 💨 12 mph H 91%29.88 inHg

5:00 PM

Mostly cloudy

77° 💧 None 💨 10 mph H 88%29.85 inHg

6:00 PM

Overcast

77° 💧 None 💨 11 mph H 88%29.85 inHg

7:00 PM

Mostly cloudy

75° 💧 None 💨 9 mph H 92%29.85 inHg

8:00 PM

Partly cloudy night

74° 💧 None 💨 9 mph H 90%29.85 inHg

9:00 PM

Clear night

73° 💧 None 💨 7 mph H 91%29.88 inHg

10:00 PM

Clear night

72° 💧 None 💨 8 mph H 94%29.94 inHg

11:00 PM

Clear night

72° 💧 None 💨 7 mph H 95%29.94 inHg

Tomorrow

12:00 AM

Clear night

71° 💧 None 💨 9 mph H 96%29.94 inHg

1:00 AM

Partly cloudy night

71° 💧 None 💨 10 mph H 97%29.91 inHg

2:00 AM

Mostly clear night

71° 💧 None 💨 10 mph H 97%29.91 inHg

3:00 AM

Mostly clear night

70° 💧 None 💨 11 mph H 96%29.91 inHg

4:00 AM

Clear night

70° 💧 None 💨 11 mph H 95%29.91 inHg

5:00 AM

Partly cloudy night

70° 💧 None 💨 12 mph H 95%29.91 inHg

6:00 AM

Overcast night

70° 💧 None 💨 12 mph H 95%29.91 inHg

7:00 AM

Overcast

71° 💧 None 💨 12 mph H 94%29.91 inHg

8:00 AM

Overcast

72° 💧 None 💨 12 mph H 91%29.91 inHg

9:00 AM

Overcast

74° 💧 None 💨 12 mph H 89%29.91 inHg

10:00 AM

Mostly cloudy

76° 💧 None 💨 13 mph H 85%29.91 inHg

11:00 AM

Mostly cloudy

78° 💧 None 💨 14 mph H 81%29.88 inHg

12:00 PM

Mostly cloudy

80° 💧 None 💨 13 mph H 79%29.88 inHg

1:00 PM

Mostly cloudy

82° 💧 0.001 in 💨 15 mph H 76%29.85 inHg

2:00 PM

Mostly cloudy

83° 💧 0.002 in 💨 15 mph H 74%29.83 inHg

3:00 PM

Mostly cloudy

84° 💧 0.001 in 💨 15 mph H 72%29.80 inHg

4:00 PM

Partly cloudy

85° 💧 None 💨 17 mph H 70%29.80 inHg

5:00 PM

Partly cloudy

85° 💧 None 💨 18 mph H 73%29.77 inHg

6:00 PM

Mostly cloudy

84° 💧 None 💨 18 mph H 74%29.77 inHg

7:00 PM

Overcast

83° 💧 None 💨 17 mph H 76%29.77 inHg

8:00 PM

Light rain

81° 💧 0.011 in 💨 13 mph H 79%29.80 inHg

9:00 PM

Light rain

79° 💧 0.021 in 💨 15 mph H 85%29.83 inHg

10:00 PM

Light rain

77° 💧 0.051 in 💨 17 mph H 90%29.83 inHg

11:00 PM

Light rain

77° 💧 0.016 in 💨 16 mph H 90%29.83 inHg

Tuesday

12:00 AM

Mostly cloudy night

77° 💧 None 💨 16 mph H 87%29.80 inHg

1:00 AM

Partly cloudy night

77° 💧 None 💨 16 mph H 84%29.80 inHg

2:00 AM

Partly cloudy night

78° 💧 None 💨 16 mph H 80%29.77 inHg

3:00 AM

Mostly cloudy night

78° 💧 None 💨 15 mph H 76%29.77 inHg

4:00 AM

Light thunderstorms

75° 💧 0.038 in 💨 16 mph H 83%29.77 inHg

5:00 AM

Light thunderstorms

74° 💧 0.034 in 💨 15 mph H 85%29.80 inHg

6:00 AM

Mostly cloudy night

75° 💧 None 💨 13 mph H 81%29.80 inHg

7:00 AM

Overcast

75° 💧 None 💨 12 mph H 78%29.80 inHg

4:00 PM

Sunny

91° 💧 None 💨 9 mph H 47%29.80 inHg

7:00 PM

Sunny

85° 💧 None 💨 10 mph H 42%29.83 inHg

10:00 PM

Clear night

74° 💧 None 💨 5 mph H 54%29.91 inHg

Wednesday

1:00 AM

Clear night

69° 💧 None 💨 3 mph H 61%29.94 inHg

4:00 AM

Clear night

69° 💧 None 💨 9 mph H 53%29.97 inHg

7:00 AM

Clear night

66° 💧 None 💨 10 mph H 45%30.06 inHg

10:00 AM

Sunny

70° 💧 None 💨 11 mph H 49%30.12 inHg

1:00 PM

Sunny

77° 💧 None 💨 11 mph H 43%30.12 inHg

4:00 PM

Sunny

80° 💧 None 💨 11 mph H 38%30.03 inHg

7:00 PM

Sunny

77° 💧 None 💨 10 mph H 41%30.00 inHg

10:00 PM

Clear night

70° 💧 None 💨 7 mph H 53%30.03 inHg

Thursday

1:00 AM

Clear night

64° 💧 None 💨 4 mph H 66%30.06 inHg

4:00 AM

Clear night

61° 💧 None 💨 0 mph H 76%30.03 inHg

7:00 AM

Clear night

58° 💧 None 💨 4 mph H 82%30.03 inHg

10:00 AM

Sunny

73° 💧 None 💨 6 mph H 51%30.00 inHg

1:00 PM

Sunny

83° 💧 None 💨 11 mph H 30%29.94 inHg

4:00 PM

Sunny

86° 💧 None 💨 12 mph H 30%29.85 inHg

7:00 PM

Sunny

81° 💧 None 💨 12 mph H 38%29.80 inHg

10:00 PM

Overcast night

75° 💧 None 💨 11 mph H 49%29.80 inHg

Friday

1:00 AM

Mostly clear night

73° 💧 None 💨 11 mph H 49%29.77 inHg

4:00 AM

Moderate rain

66° 💧 None 💨 14 mph H 85%29.74 inHg

7:00 AM

Clear night

64° 💧 None 💨 15 mph H 88%29.71 inHg

10:00 AM

Sunny

70° 💧 None 💨 12 mph H 77%29.68 inHg

1:00 PM

Mostly sunny

80° 💧 None 💨 13 mph H 65%29.62 inHg

7:00 PM

Overcast

77° 💧 None 💨 7 mph H 74%29.74 inHg

Saturday

1:00 AM

Clear night

78° 💧 None 💨 6 mph H 73%29.68 inHg

7:00 AM

Clear night

69° 💧 None 💨 10 mph H 94%29.62 inHg

1:00 PM

Partly cloudy

72° 💧 None 💨 13 mph H 98%29.47 inHg

7:00 PM

Mostly sunny

84° 💧 None 💨 21 mph H 56%29.50 inHg

Sunday

1:00 AM

Overcast night

68° 💧 None 💨 13 mph H 58%29.77 inHg

7:00 AM

Overcast night

61° 💧 None 💨 10 mph H 60%29.88 inHg

1:00 PM

Sunny

54° 💧 None 💨 7 mph H 77%30.06 inHg

7:00 PM

Mostly sunny

65° 💧 None 💨 13 mph H 42%30.15 inHg

Monday

1:00 AM

Clear night

65° 💧 None 💨 4 mph H 41%30.15 inHg

7:00 AM

Clear night

53° 💧 None 💨 2 mph H 64%30.24 inHg

1:00 PM

Sunny

49° 💧 None 💨 4 mph H 76%30.24 inHg

7:00 PM

Sunny

71° 💧 None 💨 12 mph H 36%30.18 inHg

Tuesday

1:00 AM

Clear night

69° 💧 None 💨 13 mph H 47%30.06 inHg

7:00 AM

Clear night

59° 💧 None 💨 10 mph H 69%30.09 inHg

1:00 PM

Sunny

55° 💧 None 💨 8 mph H 83%30.09 inHg

7:00 PM

Sunny

75° 💧 None 💨 7 mph H 48%30.06 inHg

Wednesday

1:00 AM

Clear night

76° 💧 None 💨 5 mph H 55%30.03 inHg

7:00 AM

Clear night

64° 💧 None 💨 6 mph H 88%30.12 inHg

1:00 PM

Sunny

60° 💧 None 💨 5 mph H 96%30.15 inHg

7:00 PM

Mostly sunny

80° 💧 None 💨 5 mph H 51%30.18 inHg

Thursday

1:00 AM

Clear night

80° 💧 None 💨 6 mph H 51%30.12 inHg

7:00 AM

Clear night

67° 💧 None 💨 5 mph H 88%30.21 inHg

1:00 PM

Overcast

63° 💧 None 💨 9 mph H 94%30.24 inHg

7:00 PM

Overcast

78° 💧 None 💨 12 mph H 57%30.12 inHg

Friday

1:00 AM

Light rain

67° 💧 None 💨 12 mph H 92%30.09 inHg

7:00 AM

Mostly cloudy night

65° 💧 None 💨 10 mph H 97%30.09 inHg

1:00 PM

Overcast

65° 💧 None 💨 5 mph H 96%30.00 inHg

7:00 PM

Light rain

73° 💧 None 💨 3 mph H 75%29.97 inHg

Saturday

1:00 AM

Mostly clear night

73° 💧 None 💨 3 mph H 78%29.91 inHg

7:00 AM

Overcast night

65° 💧 None 💨 6 mph H 93%29.94 inHg

1:00 PM

Mostly sunny

60° 💧 None 💨 7 mph H 95%29.97 inHg

7:00 PM

Overcast

69° 💧 None 💨 7 mph H 59%29.94 inHg

Sunday

1:00 AM

Mostly clear night

67° 💧 None 💨 4 mph H 67%29.88 inHg

7:00 AM

Mostly cloudy night

59° 💧 None 💨 8 mph H 84%30.00 inHg

1:00 PM

Sunny

53° 💧 None 💨 9 mph H 83%30.12 inHg

In Marion 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 Marion

TomorrowTomorrow

Mostly cloudy 85°/70° 💧 None 💨 18 mph

Tuesday, Sep 8Tue Sep 8

Light thunderstorms 91°/74° 💧 0.193 in 💨 17 mph

Wednesday, Sep 9Wed Sep 9

Sunny 85°/66° 💧 0.000 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Sunny 86°/58° 💧 None 💨 12 mph

Friday, Sep 11Fri Sep 11

Moderate rain 81°/64° 💧 0.543 in 💨 15 mph

Saturday, Sep 12Sat Sep 12

Overcast 78°/69° 💧 0.686 in 💨 13 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 84°/54° 💧 0.020 in 💨 21 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 65°/49° 💧 None 💨 13 mph

Tuesday, Sep 15Tue Sep 15

Sunny 71°/55° 💧 None 💨 13 mph

Wednesday, Sep 16Wed Sep 16

Sunny 76°/60° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 80°/63° 💧 None 💨 9 mph

Friday, Sep 18Fri Sep 18

Light rain 78°/65° 💧 0.740 in 💨 12 mph

Saturday, Sep 19Sat Sep 19

Light rain 73°/60° 💧 0.019 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Overcast 69°/53° 💧 None 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Marion

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Marion

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 2:00 AM

PM2.5 Fine particles Good 3,7µg/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 4,2µg/m³

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

O₃ Ozone Good 48,1µg/m³

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

NO₂ Nitrogen dioxide Good 1,8µg/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 Marion

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 5,0Moderate 😊Good

Tomorrow UV 7,5High 🙂Fair

Tuesday UV 7,0High 🙂Fair

Wednesday UV 6,5High 😐Moderate

Thursday UV 7,0High 🙂Fair

Friday UV 9,0Very high —Unavailable

Saturday UV 6,0High —Unavailable

Hourly UV index today

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

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.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure. High humidity can make it feel hotter.

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 Marion

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MARION, SOUTH DAKOTA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

94/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 9:37 PM–5:18 AM

☁ Cloud cover 5% Real hourly forecast for the best viewing hour.

☾ Moonlight 31% Last Quarter · Moon about 6° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 50° 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 min63%

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 Marion were last refreshed today at 1:20 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.