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Current weather in Great Falls is clear sky.

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

Now · 10:50 PM

Great Falls Weather & Hourly Forecast

United States · South Carolina · 29055

75°F

Clear night

Feels like: 73°F

💧 Humidity 56% 🌡 Pressure 30.15 inHg 💨 Wind 8 mph 👁 Visibility 22.7 mi ☁ Clouds 1% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Great Falls

Today

11:00 PM

Clear night

75° 💧 None 💨 8 mph H 56%30.15 inHg

Tomorrow

2:00 AM

Clear night

71° 💧 None 💨 6 mph H 71%30.18 inHg

5:00 AM

Clear night

68° 💧 None 💨 6 mph H 79%30.18 inHg

8:00 AM

Sunny

68° 💧 None 💨 6 mph H 81%30.24 inHg

11:00 AM

Sunny

79° 💧 None 💨 6 mph H 52%30.27 inHg

2:00 PM

Mostly sunny

85° 💧 None 💨 4 mph H 38%30.21 inHg

5:00 PM

Partly cloudy

86° 💧 None 💨 4 mph H 38%30.18 inHg

8:00 PM

Mostly clear night

78° 💧 None 💨 3 mph H 58%30.18 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 6 mph H 65%30.24 inHg

Wednesday

2:00 AM

Overcast night

69° 💧 None 💨 4 mph H 79%30.27 inHg

5:00 AM

Overcast night

67° 💧 None 💨 3 mph H 90%30.24 inHg

8:00 AM

Overcast

69° 💧 None 💨 3 mph H 86%30.27 inHg

11:00 AM

Mostly cloudy

82° 💧 None 💨 2 mph H 57%30.27 inHg

2:00 PM

Overcast

88° 💧 None 💨 1 mph H 43%30.21 inHg

5:00 PM

Mostly cloudy

88° 💧 None 💨 4 mph H 44%30.12 inHg

8:00 PM

Mostly cloudy night

79° 💧 None 💨 4 mph H 67%30.09 inHg

Today

11:00 PM

Clear night

75° 💧 None 💨 8 mph H 56%30.15 inHg

Tomorrow

12:00 AM

Clear night

73° 💧 None 💨 8 mph H 60%30.18 inHg

1:00 AM

Clear night

72° 💧 None 💨 7 mph H 64%30.18 inHg

2:00 AM

Clear night

71° 💧 None 💨 6 mph H 71%30.18 inHg

3:00 AM

Clear night

70° 💧 None 💨 6 mph H 75%30.18 inHg

4:00 AM

Clear night

69° 💧 None 💨 6 mph H 77%30.18 inHg

5:00 AM

Clear night

68° 💧 None 💨 6 mph H 79%30.18 inHg

6:00 AM

Clear night

67° 💧 None 💨 6 mph H 82%30.21 inHg

7:00 AM

Clear night

66° 💧 None 💨 6 mph H 83%30.21 inHg

8:00 AM

Sunny

68° 💧 None 💨 6 mph H 81%30.24 inHg

9:00 AM

Sunny

72° 💧 None 💨 5 mph H 72%30.27 inHg

10:00 AM

Sunny

76° 💧 None 💨 6 mph H 63%30.27 inHg

11:00 AM

Sunny

79° 💧 None 💨 6 mph H 52%30.27 inHg

12:00 PM

Sunny

82° 💧 None 💨 6 mph H 44%30.27 inHg

1:00 PM

Mostly sunny

84° 💧 None 💨 5 mph H 39%30.24 inHg

2:00 PM

Mostly sunny

85° 💧 None 💨 4 mph H 38%30.21 inHg

3:00 PM

Partly cloudy

86° 💧 None 💨 4 mph H 37%30.21 inHg

4:00 PM

Partly cloudy

87° 💧 None 💨 4 mph H 37%30.18 inHg

5:00 PM

Partly cloudy

86° 💧 None 💨 4 mph H 38%30.18 inHg

6:00 PM

Sunny

85° 💧 None 💨 3 mph H 41%30.18 inHg

7:00 PM

Sunny

81° 💧 None 💨 2 mph H 59%30.18 inHg

8:00 PM

Mostly clear night

78° 💧 None 💨 3 mph H 58%30.18 inHg

9:00 PM

Mostly clear night

75° 💧 None 💨 6 mph H 63%30.21 inHg

10:00 PM

Partly cloudy night

73° 💧 None 💨 6 mph H 66%30.24 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 6 mph H 65%30.24 inHg

Wednesday

12:00 AM

Overcast night

71° 💧 None 💨 6 mph H 65%30.24 inHg

1:00 AM

Overcast night

70° 💧 None 💨 6 mph H 71%30.27 inHg

2:00 AM

Overcast night

69° 💧 None 💨 4 mph H 79%30.27 inHg

3:00 AM

Overcast night

68° 💧 None 💨 3 mph H 86%30.24 inHg

4:00 AM

Mostly cloudy night

67° 💧 None 💨 3 mph H 89%30.24 inHg

5:00 AM

Overcast night

67° 💧 None 💨 3 mph H 90%30.24 inHg

6:00 AM

Mostly cloudy night

67° 💧 None 💨 3 mph H 91%30.24 inHg

7:00 AM

Partly cloudy night

66° 💧 None 💨 3 mph H 91%30.24 inHg

8:00 AM

Overcast

69° 💧 None 💨 3 mph H 86%30.27 inHg

9:00 AM

Overcast

74° 💧 None 💨 2 mph H 75%30.27 inHg

10:00 AM

Mostly cloudy

78° 💧 None 💨 2 mph H 67%30.27 inHg

11:00 AM

Mostly cloudy

82° 💧 None 💨 2 mph H 57%30.27 inHg

12:00 PM

Mostly cloudy

84° 💧 None 💨 2 mph H 49%30.27 inHg

1:00 PM

Overcast

86° 💧 None 💨 1 mph H 45%30.24 inHg

2:00 PM

Overcast

88° 💧 None 💨 1 mph H 43%30.21 inHg

3:00 PM

Mostly cloudy

89° 💧 None 💨 2 mph H 42%30.18 inHg

4:00 PM

Mostly cloudy

89° 💧 None 💨 4 mph H 42%30.15 inHg

5:00 PM

Mostly cloudy

88° 💧 None 💨 4 mph H 44%30.12 inHg

6:00 PM

Mostly cloudy

87° 💧 None 💨 2 mph H 46%30.12 inHg

7:00 PM

Mostly cloudy

84° 💧 None 💨 0 mph H 57%30.09 inHg

8:00 PM

Mostly cloudy night

79° 💧 None 💨 4 mph H 67%30.09 inHg

9:00 PM

Mostly clear night

79° 💧 None 💨 6 mph H 65%30.12 inHg

10:00 PM

Mostly clear night

78° 💧 None 💨 6 mph H 64%30.12 inHg

11:00 PM

Clear night

79° 💧 None 💨 9 mph H 64%30.12 inHg

Thursday

12:00 AM

Clear night

77° 💧 None 💨 8 mph H 73%30.12 inHg

1:00 AM

Clear night

76° 💧 None 💨 7 mph H 83%30.15 inHg

2:00 AM

Clear night

75° 💧 None 💨 5 mph H 89%30.12 inHg

3:00 AM

Mostly clear night

74° 💧 None 💨 5 mph H 94%30.12 inHg

4:00 AM

Clear night

73° 💧 None 💨 4 mph H 96%30.12 inHg

5:00 AM

Clear night

73° 💧 None 💨 4 mph H 98%30.12 inHg

6:00 AM

Clear night

72° 💧 None 💨 4 mph H 98%30.12 inHg

7:00 AM

Mostly clear night

72° 💧 None 💨 3 mph H 98%30.12 inHg

8:00 AM

Mostly sunny

74° 💧 None 💨 4 mph H 93%30.12 inHg

5:00 PM

Mostly sunny

91° 💧 None 💨 7 mph H 46%29.94 inHg

8:00 PM

Clear night

81° 💧 None 💨 6 mph H 63%29.91 inHg

11:00 PM

Clear night

78° 💧 None 💨 6 mph H 69%29.97 inHg

Friday

2:00 AM

Clear night

75° 💧 None 💨 7 mph H 70%29.94 inHg

5:00 AM

Clear night

73° 💧 None 💨 6 mph H 90%29.94 inHg

8:00 AM

Sunny

75° 💧 None 💨 5 mph H 89%29.97 inHg

11:00 AM

Sunny

87° 💧 None 💨 4 mph H 61%29.97 inHg

2:00 PM

Mostly sunny

94° 💧 None 💨 3 mph H 43%29.91 inHg

5:00 PM

Mostly sunny

93° 💧 None 💨 3 mph H 41%29.85 inHg

8:00 PM

Mostly clear night

84° 💧 None 💨 1 mph H 60%29.88 inHg

11:00 PM

Mostly clear night

79° 💧 None 💨 1 mph H 74%29.97 inHg

Saturday

2:00 AM

Clear night

76° 💧 None 💨 2 mph H 79%29.97 inHg

5:00 AM

Clear night

73° 💧 None 💨 4 mph H 92%29.97 inHg

8:00 AM

Mostly sunny

75° 💧 None 💨 3 mph H 92%30.03 inHg

11:00 AM

Partly cloudy

86° 💧 None 💨 3 mph H 64%30.06 inHg

2:00 PM

Partly cloudy

93° 💧 None 💨 4 mph H 48%30.03 inHg

5:00 PM

Partly cloudy

93° 💧 None 💨 4 mph H 38%29.97 inHg

8:00 PM

Clear night

81° 💧 None 💨 6 mph H 73%30.03 inHg

11:00 PM

Clear night

78° 💧 None 💨 5 mph H 83%30.09 inHg

Sunday

2:00 AM

Mostly clear night

75° 💧 None 💨 3 mph H 95%30.09 inHg

5:00 AM

Mostly clear night

73° 💧 None 💨 2 mph H 98%30.09 inHg

8:00 AM

Partly cloudy

74° 💧 None 💨 3 mph H 96%30.12 inHg

11:00 AM

Light rain

84° 💧 None 💨 4 mph H 69%30.15 inHg

2:00 PM

Mostly cloudy

91° 💧 None 💨 5 mph H 53%30.09 inHg

8:00 PM

Mostly clear night

91° 💧 None 💨 3 mph H 52%30.06 inHg

Monday

2:00 AM

Mostly clear night

81° 💧 None 💨 6 mph H 75%30.06 inHg

8:00 AM

Sunny

74° 💧 None 💨 1 mph H 96%30.09 inHg

2:00 PM

Overcast

75° 💧 None 💨 1 mph H 96%30.12 inHg

8:00 PM

Mostly clear night

90° 💧 None 💨 4 mph H 52%30.06 inHg

Tuesday

2:00 AM

Mostly clear night

82° 💧 None 💨 7 mph H 69%30.06 inHg

8:00 AM

Sunny

75° 💧 None 💨 2 mph H 96%30.09 inHg

2:00 PM

Overcast

74° 💧 None 💨 3 mph H 99%30.15 inHg

8:00 PM

Light rain

91° 💧 None 💨 4 mph H 48%30.09 inHg

Wednesday

2:00 AM

Mostly clear night

78° 💧 None 💨 4 mph H 90%30.09 inHg

8:00 AM

Sunny

74° 💧 None 💨 4 mph H 98%30.12 inHg

2:00 PM

Mostly sunny

74° 💧 None 💨 3 mph H 99%30.15 inHg

8:00 PM

Mostly clear night

90° 💧 None 💨 3 mph H 55%30.12 inHg

Thursday

2:00 AM

Moderate rain

73° 💧 None 💨 9 mph H 100%30.15 inHg

8:00 AM

Mostly sunny

73° 💧 None 💨 2 mph H 99%30.12 inHg

2:00 PM

Mostly cloudy

73° 💧 None 💨 3 mph H 99%30.18 inHg

8:00 PM

Light rain

79° 💧 None 💨 8 mph H 84%30.18 inHg

Friday

2:00 AM

Mostly clear night

77° 💧 None 💨 4 mph H 80%30.15 inHg

8:00 AM

Sunny

70° 💧 None 💨 5 mph H 83%30.18 inHg

2:00 PM

Mostly cloudy

70° 💧 None 💨 4 mph H 78%30.21 inHg

8:00 PM

Partly cloudy night

88° 💧 None 💨 1 mph H 47%30.12 inHg

Saturday

2:00 AM

Mostly clear night

79° 💧 None 💨 6 mph H 70%30.03 inHg

8:00 AM

Sunny

73° 💧 None 💨 6 mph H 87%30.06 inHg

2:00 PM

Sunny

74° 💧 None 💨 6 mph H 94%30.03 inHg

8:00 PM

Overcast night

89° 💧 None 💨 8 mph H 53%29.94 inHg

Sunday

2:00 AM

Mostly clear night

77° 💧 None 💨 4 mph H 94%29.91 inHg

8:00 AM

Mostly sunny

75° 💧 None 💨 2 mph H 90%29.91 inHg

2:00 PM

Mostly sunny

72° 💧 None 💨 4 mph H 94%29.97 inHg

8:00 PM

Overcast night

91° 💧 None 💨 3 mph H 43%29.94 inHg

Monday

2:00 AM

Mostly clear night

81° 💧 None 💨 4 mph H 60%29.91 inHg

8:00 AM

Sunny

75° 💧 None 💨 5 mph H 83%29.94 inHg

2:00 PM

Partly cloudy

73° 💧 None 💨 3 mph H 95%29.97 inHg

8:00 PM

Mostly cloudy night

94° 💧 None 💨 3 mph H 44%29.94 inHg

Tuesday

2:00 AM

Heavy rain

82° 💧 None 💨 8 mph H 68%29.94 inHg

8:00 AM

Mostly sunny

73° 💧 None 💨 4 mph H 99%30.00 inHg

2:00 PM

Overcast

73° 💧 None 💨 4 mph H 99%30.06 inHg

In Great Falls and, more broadly, across the state of South Carolina: Tonight, expect mostly cloudy skies with temperatures remaining mild to warm, ranging from 81 to 83 degrees Fahrenheit. Winds will be light from the southeast at around 7 mph, with occasional gusts reaching up to 19 mph. No precipitation is expected during the evening hours. Conditions should be relatively calm and comfortable, making for a quiet night. The breeze may bring a slight movement to the clouds, but overall, it will be a mild and peaceful evening without any significant weather disturbances.

15-Day Weather Outlook for Great Falls

Wednesday, Sep 9Wed Sep 9

Mostly sunny 89°/66° 💧 None 💨 6 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 91°/72° 💧 0.002 in 💨 9 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 94°/73° 💧 0.003 in 💨 7 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 93°/73° 💧 0.003 in 💨 4 mph

Sunday, Sep 13Sun Sep 13

Light rain 91°/73° 💧 0.046 in 💨 6 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 91°/74° 💧 0.071 in 💨 6 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 90°/74° 💧 0.032 in 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Light rain 91°/74° 💧 0.116 in 💨 4 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 90°/73° 💧 0.324 in 💨 9 mph

Friday, Sep 18Fri Sep 18

Light rain 79°/70° 💧 0.096 in 💨 8 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 88°/73° 💧 0.002 in 💨 6 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 89°/72° 💧 0.064 in 💨 8 mph

Monday, Sep 21Mon Sep 21

Overcast 91°/73° 💧 0.001 in 💨 5 mph

Tuesday, Sep 22Tue Sep 22

Heavy rain 94°/73° 💧 0.109 in 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Great Falls

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Great Falls

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 11:00 PM

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 5,0µg/m³

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

O₃ Ozone Fair 73,8µg/m³

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

NO₂ Nitrogen dioxide Good 2,6µg/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 Great Falls

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 7,9High 🙂Fair

Tomorrow UV 7,6High 🙂Fair

Wednesday UV 8,5Very high 🙂Fair

Thursday UV 8,3Very high 🙂Fair

Friday UV 8,0Very high 🙂Fair

Saturday UV 8,0Very high —Unavailable

Sunday UV 8,0Very high —Unavailable

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.

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 Great Falls

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · GREAT FALLS, SOUTH CAROLINA

Tonight's Stargazing & Shooting Stars

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

100/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 9:08 PM–5:35 AM

☁ Cloud cover 0% 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 72° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min80%

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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Great Falls were last refreshed today at 10:50 PM. The current forecast period extends through 09/09/2026 at 8:00 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.