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Current weather in Mound City is few clouds.

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

Is the weather forecast for Mound City updated regularly?

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

Now · 9:50 PM

Mound City Weather & Hourly Forecast

United States · South Dakota · 57646

80°F

Mostly clear night

Feels like: 82°F

💧 Humidity 66% 🌡 Pressure 29.68 inHg 💨 Wind 9 mph 👁 Visibility 27.6 mi ☁ Clouds 21% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Mound City

Today

10:00 PM

Mostly clear night

80° 💧 None 💨 9 mph H 66%29.68 inHg

Tomorrow

1:00 AM

Mostly cloudy night

75° 💧 None 💨 8 mph H 61%29.74 inHg

4:00 AM

Mostly clear night

71° 💧 None 💨 11 mph H 61%29.83 inHg

7:00 AM

Partly cloudy night

66° 💧 None 💨 8 mph H 61%29.91 inHg

10:00 AM

Partly cloudy

73° 💧 None 💨 11 mph H 38%29.94 inHg

1:00 PM

Sunny

80° 💧 None 💨 15 mph H 25%29.91 inHg

4:00 PM

Sunny

83° 💧 None 💨 16 mph H 22%29.88 inHg

7:00 PM

Sunny

80° 💧 None 💨 10 mph H 28%29.91 inHg

10:00 PM

Clear night

70° 💧 None 💨 7 mph H 41%29.97 inHg

Wednesday

1:00 AM

Clear night

64° 💧 None 💨 6 mph H 62%30.03 inHg

4:00 AM

Light rain

62° 💧 0.031 in 💨 8 mph H 80%30.03 inHg

7:00 AM

Clear night

61° 💧 None 💨 13 mph H 74%30.09 inHg

10:00 AM

Sunny

65° 💧 None 💨 16 mph H 56%30.12 inHg

1:00 PM

Partly cloudy

73° 💧 None 💨 15 mph H 44%30.12 inHg

4:00 PM

Sunny

75° 💧 None 💨 11 mph H 37%30.06 inHg

7:00 PM

Sunny

75° 💧 None 💨 6 mph H 36%30.00 inHg

Today

10:00 PM

Mostly clear night

80° 💧 None 💨 9 mph H 66%29.68 inHg

11:00 PM

Mostly clear night

78° 💧 None 💨 7 mph H 67%29.71 inHg

Tomorrow

12:00 AM

Mostly cloudy night

77° 💧 None 💨 9 mph H 57%29.74 inHg

1:00 AM

Mostly cloudy night

75° 💧 None 💨 8 mph H 61%29.74 inHg

2:00 AM

Mostly cloudy night

74° 💧 None 💨 11 mph H 66%29.77 inHg

3:00 AM

Partly cloudy night

73° 💧 None 💨 11 mph H 64%29.80 inHg

4:00 AM

Mostly clear night

71° 💧 None 💨 11 mph H 61%29.83 inHg

5:00 AM

Mostly cloudy night

69° 💧 None 💨 10 mph H 59%29.85 inHg

6:00 AM

Mostly cloudy night

67° 💧 None 💨 8 mph H 58%29.88 inHg

7:00 AM

Partly cloudy night

66° 💧 None 💨 8 mph H 61%29.91 inHg

8:00 AM

Mostly cloudy

66° 💧 None 💨 8 mph H 61%29.91 inHg

9:00 AM

Mostly cloudy

69° 💧 None 💨 8 mph H 56%29.94 inHg

10:00 AM

Partly cloudy

73° 💧 None 💨 11 mph H 38%29.94 inHg

11:00 AM

Sunny

75° 💧 None 💨 13 mph H 31%29.94 inHg

12:00 PM

Sunny

78° 💧 None 💨 14 mph H 28%29.94 inHg

1:00 PM

Sunny

80° 💧 None 💨 15 mph H 25%29.91 inHg

2:00 PM

Sunny

82° 💧 None 💨 16 mph H 23%29.91 inHg

3:00 PM

Sunny

83° 💧 None 💨 16 mph H 22%29.88 inHg

4:00 PM

Sunny

83° 💧 None 💨 16 mph H 22%29.88 inHg

5:00 PM

Sunny

83° 💧 None 💨 14 mph H 24%29.88 inHg

6:00 PM

Sunny

82° 💧 None 💨 13 mph H 25%29.91 inHg

7:00 PM

Sunny

80° 💧 None 💨 10 mph H 28%29.91 inHg

8:00 PM

Sunny

75° 💧 None 💨 5 mph H 37%29.91 inHg

9:00 PM

Clear night

72° 💧 None 💨 6 mph H 40%29.94 inHg

10:00 PM

Clear night

70° 💧 None 💨 7 mph H 41%29.97 inHg

11:00 PM

Clear night

69° 💧 None 💨 6 mph H 44%30.00 inHg

Wednesday

12:00 AM

Clear night

66° 💧 None 💨 6 mph H 54%30.00 inHg

1:00 AM

Clear night

64° 💧 None 💨 6 mph H 62%30.03 inHg

2:00 AM

Mostly cloudy night

65° 💧 None 💨 9 mph H 62%30.06 inHg

3:00 AM

Mostly cloudy night

65° 💧 None 💨 8 mph H 61%30.03 inHg

4:00 AM

Light rain

62° 💧 0.027 in 💨 8 mph H 80%30.03 inHg

5:00 AM

Light rain

62° 💧 0.005 in 💨 8 mph H 82%30.06 inHg

6:00 AM

Clear night

61° 💧 None 💨 10 mph H 80%30.06 inHg

7:00 AM

Clear night

61° 💧 None 💨 13 mph H 74%30.09 inHg

8:00 AM

Sunny

61° 💧 None 💨 14 mph H 65%30.09 inHg

9:00 AM

Sunny

63° 💧 None 💨 15 mph H 58%30.12 inHg

10:00 AM

Sunny

65° 💧 None 💨 16 mph H 56%30.12 inHg

11:00 AM

Mostly cloudy

69° 💧 None 💨 16 mph H 50%30.12 inHg

12:00 PM

Partly cloudy

70° 💧 None 💨 16 mph H 48%30.12 inHg

1:00 PM

Partly cloudy

73° 💧 None 💨 15 mph H 44%30.12 inHg

2:00 PM

Mostly sunny

74° 💧 None 💨 13 mph H 40%30.09 inHg

3:00 PM

Sunny

75° 💧 None 💨 12 mph H 38%30.06 inHg

4:00 PM

Sunny

75° 💧 None 💨 11 mph H 37%30.06 inHg

5:00 PM

Sunny

76° 💧 None 💨 10 mph H 36%30.03 inHg

6:00 PM

Sunny

76° 💧 None 💨 9 mph H 35%30.03 inHg

7:00 PM

Sunny

75° 💧 None 💨 6 mph H 36%30.00 inHg

8:00 PM

Sunny

70° 💧 None 💨 2 mph H 48%30.00 inHg

9:00 PM

Mostly cloudy night

68° 💧 None 💨 1 mph H 51%30.00 inHg

10:00 PM

Mostly cloudy night

66° 💧 None 💨 3 mph H 54%30.00 inHg

11:00 PM

Clear night

65° 💧 None 💨 5 mph H 56%30.00 inHg

Thursday

12:00 AM

Clear night

63° 💧 None 💨 5 mph H 57%30.00 inHg

1:00 AM

Clear night

62° 💧 None 💨 6 mph H 60%30.00 inHg

2:00 AM

Clear night

63° 💧 None 💨 6 mph H 60%29.97 inHg

3:00 AM

Clear night

63° 💧 None 💨 7 mph H 61%29.97 inHg

4:00 AM

Clear night

63° 💧 None 💨 9 mph H 60%29.97 inHg

5:00 AM

Clear night

62° 💧 None 💨 9 mph H 63%29.97 inHg

6:00 AM

Clear night

62° 💧 None 💨 9 mph H 63%29.97 inHg

7:00 AM

Clear night

61° 💧 None 💨 8 mph H 63%29.94 inHg

4:00 PM

Sunny

88° 💧 None 💨 10 mph H 18%29.80 inHg

7:00 PM

Sunny

84° 💧 None 💨 6 mph H 23%29.71 inHg

10:00 PM

Partly cloudy night

74° 💧 None 💨 7 mph H 48%29.68 inHg

Friday

1:00 AM

Mostly cloudy night

73° 💧 None 💨 10 mph H 64%29.65 inHg

4:00 AM

Overcast night

73° 💧 None 💨 9 mph H 64%29.59 inHg

7:00 AM

Partly cloudy night

69° 💧 None 💨 6 mph H 67%29.53 inHg

10:00 AM

Mostly sunny

78° 💧 None 💨 10 mph H 57%29.47 inHg

1:00 PM

Mostly sunny

85° 💧 None 💨 8 mph H 33%29.41 inHg

4:00 PM

Mostly sunny

93° 💧 None 💨 16 mph H 20%29.38 inHg

7:00 PM

Sunny

80° 💧 None 💨 21 mph H 37%29.56 inHg

10:00 PM

Mostly clear night

70° 💧 None 💨 20 mph H 50%29.74 inHg

Saturday

1:00 AM

Clear night

59° 💧 None 💨 18 mph H 61%29.88 inHg

4:00 AM

Mostly clear night

56° 💧 None 💨 11 mph H 61%29.94 inHg

7:00 AM

Clear night

54° 💧 None 💨 7 mph H 66%30.00 inHg

10:00 AM

Mostly sunny

60° 💧 None 💨 12 mph H 54%30.03 inHg

1:00 PM

Partly cloudy

67° 💧 None 💨 10 mph H 41%30.06 inHg

4:00 PM

Mostly cloudy

71° 💧 None 💨 10 mph H 33%30.03 inHg

7:00 PM

Mostly cloudy

68° 💧 None 💨 6 mph H 34%30.00 inHg

10:00 PM

Partly cloudy night

61° 💧 None 💨 9 mph H 47%30.03 inHg

Sunday

1:00 AM

Overcast night

58° 💧 None 💨 8 mph H 56%30.09 inHg

4:00 AM

Light rain

56° 💧 None 💨 11 mph H 62%30.12 inHg

7:00 AM

Moderate rain

53° 💧 None 💨 15 mph H 84%30.09 inHg

10:00 AM

Overcast

54° 💧 None 💨 17 mph H 83%30.09 inHg

1:00 PM

Light rain

57° 💧 None 💨 15 mph H 76%30.06 inHg

7:00 PM

Light rain

59° 💧 None 💨 17 mph H 82%29.91 inHg

Monday

1:00 AM

Overcast night

59° 💧 None 💨 18 mph H 79%29.83 inHg

7:00 AM

Light rain

56° 💧 None 💨 16 mph H 95%29.80 inHg

1:00 PM

Light rain

57° 💧 None 💨 9 mph H 94%29.83 inHg

7:00 PM

Partly cloudy

66° 💧 None 💨 22 mph H 45%29.80 inHg

Tuesday

1:00 AM

Mostly cloudy night

63° 💧 None 💨 22 mph H 50%29.85 inHg

7:00 AM

Clear night

54° 💧 None 💨 13 mph H 70%30.03 inHg

1:00 PM

Sunny

50° 💧 None 💨 8 mph H 83%30.15 inHg

7:00 PM

Sunny

68° 💧 None 💨 9 mph H 39%30.18 inHg

Wednesday

1:00 AM

Clear night

69° 💧 None 💨 2 mph H 55%30.12 inHg

7:00 AM

Clear night

54° 💧 None 💨 6 mph H 79%30.21 inHg

1:00 PM

Sunny

55° 💧 None 💨 14 mph H 76%30.18 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 21 mph H 56%30.09 inHg

Thursday

1:00 AM

Mostly clear night

69° 💧 None 💨 17 mph H 64%29.97 inHg

7:00 AM

Overcast night

64° 💧 None 💨 9 mph H 75%29.97 inHg

1:00 PM

Mostly cloudy

62° 💧 None 💨 3 mph H 87%30.00 inHg

7:00 PM

Moderate rain

72° 💧 None 💨 13 mph H 74%30.06 inHg

Friday

1:00 AM

Mostly cloudy night

69° 💧 None 💨 16 mph H 68%30.12 inHg

7:00 AM

Mostly clear night

54° 💧 None 💨 13 mph H 80%30.27 inHg

1:00 PM

Light rain

51° 💧 None 💨 9 mph H 82%30.27 inHg

7:00 PM

Overcast

54° 💧 None 💨 9 mph H 79%30.30 inHg

Saturday

1:00 AM

Overcast night

56° 💧 None 💨 6 mph H 72%30.21 inHg

7:00 AM

Overcast night

54° 💧 None 💨 6 mph H 75%30.18 inHg

1:00 PM

Overcast

55° 💧 None 💨 5 mph H 80%30.12 inHg

7:00 PM

Overcast

64° 💧 None 💨 5 mph H 73%30.06 inHg

Sunday

1:00 AM

Mostly cloudy night

68° 💧 None 💨 2 mph H 70%30.00 inHg

7:00 AM

Mostly clear night

56° 💧 None 💨 3 mph H 96%30.03 inHg

1:00 PM

Overcast

56° 💧 None 💨 4 mph H 99%30.06 inHg

7:00 PM

Overcast

68° 💧 None 💨 8 mph H 62%30.09 inHg

Monday

1:00 AM

Overcast night

64° 💧 None 💨 13 mph H 78%30.00 inHg

7:00 AM

Mostly cloudy night

58° 💧 None 💨 14 mph H 85%29.97 inHg

1:00 PM

Mostly sunny

57° 💧 None 💨 13 mph H 85%29.85 inHg

7:00 PM

Overcast

68° 💧 None 💨 7 mph H 76%29.71 inHg

Tuesday

1:00 AM

Mostly clear night

72° 💧 None 💨 2 mph H 82%29.62 inHg

7:00 AM

Partly cloudy night

61° 💧 None 💨 4 mph H 99%29.65 inHg

1:00 PM

Mostly sunny

60° 💧 None 💨 12 mph H 81%29.77 inHg

In Mound City and, more broadly, across the state of South Dakota: Tonight will be mostly cloudy with mild to warm temperatures around 82 to 84 degrees Fahrenheit. There is a high chance of rain, with an estimated total accumulation of about 0.03 inches. Winds will be coming from the southwest at speeds up to 12 mph, with gusts reaching 23 mph. Conditions may be breezy at times, and brief periods of heavier rain are possible. Be prepared for the occasional gusty wind and light showers as the evening progresses. Temperatures will gradually stay steady through the night, with little change expected before dawn.

15-Day Weather Outlook for Mound City

TomorrowTomorrow

Mostly sunny 86°/66° 💧 None 💨 16 mph

Wednesday, Sep 9Wed Sep 9

Mostly cloudy 80°/61° 💧 None 💨 16 mph

Thursday, Sep 10Thu Sep 10

Mostly cloudy 88°/61° 💧 0.025 in 💨 11 mph

Friday, Sep 11Fri Sep 11

Mostly cloudy 85°/70° 💧 None 💨 24 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 77°/55° 💧 None 💨 22 mph

Sunday, Sep 13Sun Sep 13

Moderate rain 69°/54° 💧 0.281 in 💨 18 mph

Monday, Sep 14Mon Sep 14

Light rain 66°/56° 💧 0.203 in 💨 22 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 68°/50° 💧 None 💨 22 mph

Wednesday, Sep 16Wed Sep 16

Mostly cloudy 70°/54° 💧 0.005 in 💨 21 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 72°/62° 💧 0.084 in 💨 17 mph

Friday, Sep 18Fri Sep 18

Light rain 69°/51° 💧 0.412 in 💨 16 mph

Saturday, Sep 19Sat Sep 19

Overcast 64°/54° 💧 0.009 in 💨 6 mph

Sunday, Sep 20Sun Sep 20

Overcast 68°/56° 💧 0.003 in 💨 8 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 68°/57° 💧 0.079 in 💨 14 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 72°/60° 💧 0.007 in 💨 12 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Mound City

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Mound City

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 PM

PM2.5 Fine particles Good 1,5µg/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 1,9µg/m³

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

O₃ Ozone Good 47,2µg/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 Mound City

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 4,0Moderate 😊Good

Tomorrow UV 6,2High 🙂Fair

Wednesday UV 5,7Moderate 🙂Fair

Thursday UV 5,8Moderate 🙂Fair

Friday UV 5,9Moderate 🙂Fair

Saturday UV 5,0Moderate —Unavailable

Sunday UV 3,0Moderate —Unavailable

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.

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 Mound City

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MOUND CITY, SOUTH DAKOTA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

91/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 9:51 PM–5:26 AM

☁ Cloud cover 13% Real hourly forecast for the best viewing hour.

☾ Moonlight 13% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 70° high at the best hour.

✦ Estimated visible meteors 2–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min76%

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 Mound City were last refreshed today at 9:50 PM. The current forecast period extends through 09/09/2026 at 7:00 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.