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Current weather in St. Stephen is overcast clouds.

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

Now · 7:52 AM

St. Stephen Weather & Hourly Forecast

United States · South Carolina · 29479

70°F

Overcast

Feels like: 71°F

💧 Humidity 89% 🌡 Pressure 30.09 inHg 💨 Wind 9 mph 👁 Visibility 12.6 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:07 AM 🌇 Sunset 7:16 PM

Hourly Forecast for St. Stephen

Today

8:00 AM

Overcast

70° 💧 0.000 in 💨 9 mph H 89%30.09 inHg

11:00 AM

Overcast

75° 💧 0.002 in 💨 12 mph H 77%30.12 inHg

2:00 PM

Overcast

80° 💧 0.001 in 💨 11 mph H 65%30.06 inHg

5:00 PM

Overcast

80° 💧 None 💨 9 mph H 65%30.03 inHg

8:00 PM

Mostly cloudy night

75° 💧 None 💨 11 mph H 70%30.06 inHg

11:00 PM

Clear night

73° 💧 None 💨 10 mph H 75%30.09 inHg

Tomorrow

2:00 AM

Mostly clear night

70° 💧 0.004 in 💨 11 mph H 80%30.06 inHg

5:00 AM

Partly cloudy night

67° 💧 0.034 in 💨 10 mph H 81%30.06 inHg

8:00 AM

Light rain

65° 💧 0.405 in 💨 10 mph H 91%30.09 inHg

11:00 AM

Thunderstorms

67° 💧 0.112 in 💨 12 mph H 95%30.09 inHg

2:00 PM

Light rain

72° 💧 0.056 in 💨 12 mph H 78%30.06 inHg

5:00 PM

Overcast

72° 💧 0.002 in 💨 12 mph H 72%30.03 inHg

8:00 PM

Overcast night

70° 💧 None 💨 11 mph H 70%30.06 inHg

11:00 PM

Clear night

65° 💧 None 💨 12 mph H 77%30.09 inHg

Friday

2:00 AM

Clear night

62° 💧 None 💨 9 mph H 84%30.06 inHg

5:00 AM

Clear night

60° 💧 None 💨 10 mph H 85%30.06 inHg

Today

8:00 AM

Overcast

70° 💧 None 💨 9 mph H 89%30.09 inHg

9:00 AM

Overcast

71° 💧 0.000 in 💨 10 mph H 86%30.09 inHg

10:00 AM

Overcast

74° 💧 None 💨 12 mph H 81%30.09 inHg

11:00 AM

Overcast

75° 💧 0.000 in 💨 12 mph H 77%30.12 inHg

12:00 PM

Overcast

77° 💧 0.001 in 💨 11 mph H 72%30.09 inHg

1:00 PM

Overcast

79° 💧 0.000 in 💨 11 mph H 68%30.09 inHg

2:00 PM

Overcast

80° 💧 0.001 in 💨 11 mph H 65%30.06 inHg

3:00 PM

Overcast

80° 💧 0.000 in 💨 10 mph H 67%30.06 inHg

4:00 PM

Overcast

79° 💧 None 💨 9 mph H 67%30.03 inHg

5:00 PM

Overcast

80° 💧 None 💨 9 mph H 65%30.03 inHg

6:00 PM

Overcast

79° 💧 None 💨 10 mph H 67%30.06 inHg

7:00 PM

Partly cloudy

77° 💧 None 💨 10 mph H 68%30.06 inHg

8:00 PM

Mostly cloudy night

75° 💧 None 💨 11 mph H 70%30.06 inHg

9:00 PM

Overcast night

74° 💧 None 💨 11 mph H 72%30.09 inHg

10:00 PM

Overcast night

74° 💧 None 💨 10 mph H 74%30.09 inHg

11:00 PM

Clear night

73° 💧 None 💨 10 mph H 75%30.09 inHg

Tomorrow

12:00 AM

Mostly cloudy night

72° 💧 None 💨 10 mph H 78%30.09 inHg

1:00 AM

Clear night

71° 💧 None 💨 10 mph H 79%30.06 inHg

2:00 AM

Mostly clear night

70° 💧 0.001 in 💨 11 mph H 80%30.06 inHg

3:00 AM

Mostly clear night

69° 💧 0.002 in 💨 10 mph H 80%30.06 inHg

4:00 AM

Mostly clear night

68° 💧 0.001 in 💨 11 mph H 81%30.06 inHg

5:00 AM

Partly cloudy night

67° 💧 None 💨 10 mph H 81%30.06 inHg

6:00 AM

Light rain

66° 💧 0.020 in 💨 9 mph H 84%30.06 inHg

7:00 AM

Light rain

66° 💧 0.013 in 💨 10 mph H 88%30.06 inHg

8:00 AM

Light rain

65° 💧 0.010 in 💨 10 mph H 91%30.09 inHg

9:00 AM

Light thunderstorms

65° 💧 0.067 in 💨 10 mph H 91%30.09 inHg

10:00 AM

Severe thunderstorms

65° 💧 0.328 in 💨 10 mph H 97%30.09 inHg

11:00 AM

Thunderstorms

67° 💧 0.103 in 💨 12 mph H 95%30.09 inHg

12:00 PM

Light rain

72° 💧 0.006 in 💨 12 mph H 77%30.09 inHg

1:00 PM

Overcast

73° 💧 0.004 in 💨 12 mph H 72%30.06 inHg

2:00 PM

Light rain

72° 💧 0.022 in 💨 12 mph H 78%30.06 inHg

3:00 PM

Light rain

71° 💧 0.028 in 💨 11 mph H 78%30.03 inHg

4:00 PM

Light rain

73° 💧 0.006 in 💨 12 mph H 72%30.03 inHg

5:00 PM

Overcast

72° 💧 0.002 in 💨 12 mph H 72%30.03 inHg

6:00 PM

Overcast

71° 💧 None 💨 11 mph H 71%30.03 inHg

7:00 PM

Overcast

70° 💧 None 💨 11 mph H 71%30.06 inHg

8:00 PM

Overcast night

70° 💧 None 💨 11 mph H 70%30.06 inHg

9:00 PM

Overcast night

69° 💧 None 💨 12 mph H 70%30.09 inHg

10:00 PM

Mostly cloudy night

68° 💧 None 💨 12 mph H 73%30.09 inHg

11:00 PM

Clear night

65° 💧 None 💨 12 mph H 77%30.09 inHg

Friday

12:00 AM

Clear night

63° 💧 None 💨 10 mph H 82%30.09 inHg

1:00 AM

Clear night

62° 💧 None 💨 10 mph H 83%30.09 inHg

2:00 AM

Clear night

62° 💧 None 💨 9 mph H 84%30.06 inHg

3:00 AM

Clear night

61° 💧 None 💨 10 mph H 85%30.06 inHg

4:00 AM

Clear night

60° 💧 None 💨 10 mph H 85%30.06 inHg

5:00 AM

Clear night

60° 💧 None 💨 10 mph H 85%30.06 inHg

6:00 AM

Clear night

59° 💧 None 💨 10 mph H 85%30.06 inHg

7:00 AM

Clear night

59° 💧 None 💨 10 mph H 84%30.09 inHg

8:00 AM

Sunny

59° 💧 None 💨 10 mph H 83%30.09 inHg

9:00 AM

Sunny

61° 💧 None 💨 11 mph H 76%30.09 inHg

10:00 AM

Sunny

64° 💧 None 💨 10 mph H 69%30.09 inHg

11:00 AM

Sunny

67° 💧 None 💨 10 mph H 63%30.09 inHg

12:00 PM

Sunny

69° 💧 None 💨 10 mph H 58%30.09 inHg

1:00 PM

Sunny

71° 💧 None 💨 9 mph H 54%30.06 inHg

2:00 PM

Sunny

72° 💧 None 💨 10 mph H 52%30.03 inHg

3:00 PM

Sunny

73° 💧 None 💨 9 mph H 50%30.00 inHg

4:00 PM

Sunny

73° 💧 None 💨 9 mph H 49%30.00 inHg

5:00 PM

Sunny

73° 💧 None 💨 9 mph H 50%30.00 inHg

6:00 PM

Sunny

71° 💧 None 💨 8 mph H 54%30.00 inHg

7:00 PM

Sunny

68° 💧 None 💨 7 mph H 59%30.00 inHg

8:00 PM

Clear night

66° 💧 None 💨 7 mph H 63%30.03 inHg

11:00 PM

Clear night

59° 💧 None 💨 6 mph H 68%30.06 inHg

Saturday

2:00 AM

Clear night

57° 💧 None 💨 6 mph H 79%30.06 inHg

5:00 AM

Mostly clear night

55° 💧 None 💨 6 mph H 87%30.03 inHg

8:00 AM

Partly cloudy

59° 💧 None 💨 6 mph H 79%30.06 inHg

11:00 AM

Sunny

69° 💧 None 💨 8 mph H 55%30.09 inHg

2:00 PM

Sunny

75° 💧 None 💨 9 mph H 45%30.03 inHg

5:00 PM

Mostly cloudy

76° 💧 None 💨 7 mph H 36%30.00 inHg

8:00 PM

Partly cloudy night

64° 💧 None 💨 4 mph H 55%30.00 inHg

11:00 PM

Partly cloudy night

60° 💧 None 💨 5 mph H 66%30.06 inHg

Sunday

2:00 AM

Mostly cloudy night

56° 💧 None 💨 4 mph H 73%30.03 inHg

5:00 AM

Partly cloudy night

54° 💧 None 💨 4 mph H 80%30.00 inHg

8:00 AM

Mostly sunny

55° 💧 None 💨 5 mph H 81%30.03 inHg

11:00 AM

Overcast

73° 💧 None 💨 3 mph H 46%30.03 inHg

2:00 PM

Mostly sunny

78° 💧 None 💨 3 mph H 37%29.97 inHg

5:00 PM

Partly cloudy

77° 💧 None 💨 5 mph H 39%29.94 inHg

8:00 PM

Overcast night

67° 💧 None 💨 3 mph H 59%29.94 inHg

11:00 PM

Clear night

65° 💧 None 💨 7 mph H 71%29.97 inHg

Monday

2:00 AM

Clear night

61° 💧 None 💨 3 mph H 85%29.97 inHg

5:00 AM

Clear night

60° 💧 None 💨 4 mph H 92%29.97 inHg

8:00 AM

Sunny

60° 💧 None 💨 4 mph H 98%30.00 inHg

11:00 AM

Sunny

76° 💧 None 💨 1 mph H 49%30.00 inHg

2:00 PM

Sunny

81° 💧 None 💨 5 mph H 38%29.97 inHg

5:00 PM

Sunny

81° 💧 None 💨 3 mph H 37%29.94 inHg

8:00 PM

Clear night

70° 💧 None 💨 9 mph H 63%29.94 inHg

Tuesday

2:00 AM

Clear night

65° 💧 None 💨 5 mph H 86%30.00 inHg

8:00 AM

Sunny

66° 💧 None 💨 4 mph H 87%30.03 inHg

2:00 PM

Sunny

85° 💧 None 💨 6 mph H 41%30.03 inHg

8:00 PM

Clear night

74° 💧 None 💨 8 mph H 66%30.00 inHg

Wednesday

2:00 AM

Clear night

68° 💧 None 💨 5 mph H 86%30.03 inHg

8:00 AM

Sunny

66° 💧 None 💨 4 mph H 92%30.03 inHg

2:00 PM

Mostly sunny

85° 💧 None 💨 8 mph H 46%30.00 inHg

8:00 PM

Clear night

76° 💧 None 💨 8 mph H 75%29.97 inHg

Thursday

2:00 AM

Light rain

74° 💧 None 💨 8 mph H 90%29.94 inHg

8:00 AM

Partly cloudy

74° 💧 None 💨 6 mph H 92%29.91 inHg

2:00 PM

Light rain

80° 💧 None 💨 8 mph H 82%29.88 inHg

8:00 PM

Light rain

72° 💧 None 💨 7 mph H 99%29.88 inHg

Friday

2:00 AM

Overcast night

70° 💧 None 💨 7 mph H 99%29.85 inHg

8:00 AM

Overcast

72° 💧 None 💨 5 mph H 99%29.88 inHg

2:00 PM

Mostly cloudy

82° 💧 None 💨 7 mph H 62%29.85 inHg

8:00 PM

Clear night

74° 💧 None 💨 3 mph H 78%29.85 inHg

Saturday

2:00 AM

Overcast night

72° 💧 None 💨 7 mph H 71%29.91 inHg

8:00 AM

Partly cloudy

64° 💧 None 💨 9 mph H 62%30.03 inHg

2:00 PM

Mostly cloudy

78° 💧 None 💨 7 mph H 43%30.03 inHg

8:00 PM

Mostly clear night

69° 💧 None 💨 7 mph H 58%30.06 inHg

Sunday

2:00 AM

Mostly cloudy night

63° 💧 None 💨 6 mph H 66%30.12 inHg

8:00 AM

Mostly cloudy

60° 💧 None 💨 8 mph H 73%30.18 inHg

2:00 PM

Sunny

77° 💧 None 💨 7 mph H 41%30.15 inHg

8:00 PM

Clear night

67° 💧 None 💨 6 mph H 61%30.12 inHg

Monday

2:00 AM

Partly cloudy night

62° 💧 None 💨 7 mph H 71%30.15 inHg

8:00 AM

Overcast

60° 💧 None 💨 6 mph H 74%30.18 inHg

2:00 PM

Overcast

75° 💧 None 💨 7 mph H 42%30.15 inHg

8:00 PM

Overcast night

66° 💧 None 💨 7 mph H 56%30.12 inHg

Tuesday

2:00 AM

Overcast night

62° 💧 None 💨 6 mph H 68%30.12 inHg

8:00 AM

Overcast

60° 💧 None 💨 6 mph H 83%30.12 inHg

2:00 PM

Sunny

79° 💧 None 💨 5 mph H 39%30.06 inHg

8:00 PM

Clear night

67° 💧 None 💨 6 mph H 55%30.03 inHg

Wednesday

2:00 AM

Clear night

59° 💧 None 💨 1 mph H 78%29.97 inHg

8:00 AM

Sunny

62° 💧 None 💨 5 mph H 94%29.97 inHg

2:00 PM

Sunny

83° 💧 None 💨 7 mph H 40%29.88 inHg

8:00 PM

Clear night

74° 💧 None 💨 8 mph H 59%29.80 inHg

In St. Stephen and, more broadly, across the state of South Carolina: This morning, clear skies and warm temperatures will set the tone, with lows around 72 degrees and light southeast winds at up to 4 mph. As the day progresses, temperatures will rise into the upper 80s and low 90s, creating hot conditions. The wind will remain gentle, with occasional gusts reaching 12 mph. An isolated shower is unlikely but cannot be entirely ruled out, with a maximum probability of 25%. Overall, expect a hot and dry day, with plenty of sunshine and light breezes.

15-Day Weather Outlook for St. Stephen

TomorrowTomorrow

Light thunderstorms 73°/65° 💧 None 💨 12 mph

Friday, Sep 25Fri Sep 25

Sunny 73°/59° 💧 0.743 in 💨 11 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 76°/55° 💧 None 💨 9 mph

Sunday, Sep 27Sun Sep 27

Mostly cloudy 78°/54° 💧 None 💨 7 mph

Monday, Sep 28Mon Sep 28

Sunny 81°/60° 💧 None 💨 9 mph

Tuesday, Sep 29Tue Sep 29

Sunny 85°/65° 💧 None 💨 8 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 85°/66° 💧 None 💨 8 mph

Thursday, Oct 1Thu Oct 1

Light rain 80°/72° 💧 0.560 in 💨 8 mph

Friday, Oct 2Fri Oct 2

Overcast 82°/70° 💧 0.691 in 💨 7 mph

Saturday, Oct 3Sat Oct 3

Overcast 78°/64° 💧 None 💨 9 mph

Sunday, Oct 4Sun Oct 4

Mostly cloudy 77°/60° 💧 None 💨 8 mph

Monday, Oct 5Mon Oct 5

Partly cloudy 75°/60° 💧 None 💨 7 mph

Tuesday, Oct 6Tue Oct 6

Overcast 79°/60° 💧 None 💨 6 mph

Wednesday, Oct 7Wed Oct 7

Sunny 83°/59° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. Stephen

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for St. Stephen

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 8:00 AM

PM2.5 Fine particles Good 3,0µg/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 3,5µg/m³

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

O₃ Ozone Good 37,1µg/m³

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

NO₂ Nitrogen dioxide Good 3,0µg/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 St. Stephen

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 4,6Moderate 😊Good

Tomorrow UV 3,7Moderate 🙂Fair

Friday UV 7,1High 😐Moderate

Saturday UV 7,0High 😐Moderate

Sunday UV 7,0High 😊Good

Monday UV 8,0Very high —Unavailable

Tuesday UV 8,0Very high —Unavailable

Hourly UV index today

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

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.

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 St. Stephen

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ST. STEPHEN, SOUTH CAROLINA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

81/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 8:38 PM–5:46 AM

☁ Cloud cover 16% Real hourly forecast for the best viewing hour.

☾ Moonlight 94% Waxing Gibbous · Moon about 21° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 62° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min40%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 St. Stephen were last refreshed today at 7:52 AM. The current forecast period extends through 25/09/2026 at 5:00 AM. 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.