What is the weather in St. Charles right now?

Current weather in St. Charles is clear sky.

Where can I find the hourly weather forecast for St. Charles?

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

Is the weather forecast for St. Charles updated regularly?

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

Now · 6:05 AM

St. Charles Weather & Hourly Forecast

United States · South Carolina · 29104

73°F

Clear night

Feels like: 75°F

💧 Humidity 95% 🌡 Pressure 30.06 inHg 💨 Wind 3 mph 👁 Visibility 6.2 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:55 AM 🌇 Sunset 7:46 PM

Hourly Forecast for St. Charles

Today

7:00 AM

Sunny

73° 💧 None 💨 3 mph H 95%30.06 inHg

10:00 AM

Sunny

82° 💧 None 💨 3 mph H 74%30.09 inHg

1:00 PM

Sunny

95° 💧 None 💨 4 mph H 45%30.06 inHg

4:00 PM

Mostly cloudy

97° 💧 None 💨 9 mph H 42%30.00 inHg

7:00 PM

Mostly cloudy

90° 💧 0.00 in 💨 7 mph H 56%29.97 inHg

10:00 PM

Light rain

81° 💧 0.04 in 💨 7 mph H 85%30.06 inHg

Tomorrow

1:00 AM

Partly cloudy night

76° 💧 None 💨 5 mph H 86%30.03 inHg

4:00 AM

Clear night

75° 💧 None 💨 4 mph H 89%30.03 inHg

7:00 AM

Sunny

74° 💧 None 💨 4 mph H 91%30.06 inHg

10:00 AM

Sunny

84° 💧 None 💨 4 mph H 66%30.06 inHg

1:00 PM

Sunny

93° 💧 None 💨 7 mph H 48%30.03 inHg

4:00 PM

Sunny

95° 💧 None 💨 8 mph H 44%30.00 inHg

7:00 PM

Sunny

90° 💧 None 💨 4 mph H 53%29.97 inHg

10:00 PM

Clear night

81° 💧 None 💨 11 mph H 68%30.03 inHg

Friday

1:00 AM

Clear night

76° 💧 None 💨 6 mph H 87%30.03 inHg

4:00 AM

Mostly clear night

74° 💧 None 💨 5 mph H 96%30.00 inHg

Today

7:00 AM

Sunny

73° 💧 None 💨 3 mph H 95%30.06 inHg

8:00 AM

Sunny

74° 💧 None 💨 3 mph H 91%30.06 inHg

9:00 AM

Sunny

77° 💧 None 💨 3 mph H 84%30.09 inHg

10:00 AM

Sunny

82° 💧 None 💨 3 mph H 74%30.09 inHg

11:00 AM

Sunny

90° 💧 None 💨 3 mph H 62%30.09 inHg

12:00 PM

Sunny

93° 💧 None 💨 3 mph H 49%30.06 inHg

1:00 PM

Sunny

95° 💧 None 💨 4 mph H 45%30.06 inHg

2:00 PM

Sunny

96° 💧 None 💨 6 mph H 43%30.03 inHg

3:00 PM

Mostly cloudy

97° 💧 None 💨 7 mph H 41%30.00 inHg

4:00 PM

Mostly cloudy

97° 💧 None 💨 9 mph H 42%30.00 inHg

5:00 PM

Overcast

97° 💧 None 💨 11 mph H 44%29.97 inHg

6:00 PM

Overcast

94° 💧 None 💨 10 mph H 50%29.97 inHg

7:00 PM

Mostly cloudy

90° 💧 None 💨 7 mph H 56%29.97 inHg

8:00 PM

Mostly cloudy night

87° 💧 None 💨 7 mph H 60%30.00 inHg

9:00 PM

Light rain

83° 💧 0.00 in 💨 11 mph H 67%30.03 inHg

10:00 PM

Light rain

81° 💧 0.04 in 💨 7 mph H 85%30.06 inHg

11:00 PM

Light rain

79° 💧 0.00 in 💨 7 mph H 86%30.03 inHg

Tomorrow

12:00 AM

Partly cloudy night

78° 💧 None 💨 6 mph H 85%30.03 inHg

1:00 AM

Partly cloudy night

76° 💧 None 💨 5 mph H 86%30.03 inHg

2:00 AM

Partly cloudy night

76° 💧 None 💨 5 mph H 86%30.03 inHg

3:00 AM

Clear night

75° 💧 None 💨 5 mph H 88%30.03 inHg

4:00 AM

Clear night

75° 💧 None 💨 4 mph H 89%30.03 inHg

5:00 AM

Clear night

74° 💧 None 💨 4 mph H 90%30.03 inHg

6:00 AM

Clear night

74° 💧 None 💨 4 mph H 90%30.03 inHg

7:00 AM

Sunny

74° 💧 None 💨 4 mph H 91%30.06 inHg

8:00 AM

Sunny

76° 💧 None 💨 3 mph H 86%30.06 inHg

9:00 AM

Sunny

80° 💧 None 💨 4 mph H 77%30.06 inHg

10:00 AM

Sunny

84° 💧 None 💨 4 mph H 66%30.06 inHg

11:00 AM

Sunny

88° 💧 None 💨 6 mph H 57%30.06 inHg

12:00 PM

Sunny

91° 💧 None 💨 6 mph H 51%30.06 inHg

1:00 PM

Sunny

93° 💧 None 💨 7 mph H 48%30.03 inHg

2:00 PM

Sunny

94° 💧 None 💨 8 mph H 46%30.03 inHg

3:00 PM

Sunny

94° 💧 None 💨 8 mph H 45%30.00 inHg

4:00 PM

Sunny

95° 💧 None 💨 8 mph H 44%30.00 inHg

5:00 PM

Sunny

94° 💧 None 💨 7 mph H 45%29.97 inHg

6:00 PM

Sunny

93° 💧 None 💨 6 mph H 46%29.97 inHg

7:00 PM

Sunny

90° 💧 None 💨 4 mph H 53%29.97 inHg

8:00 PM

Clear night

86° 💧 None 💨 8 mph H 59%29.97 inHg

9:00 PM

Clear night

83° 💧 None 💨 11 mph H 61%30.00 inHg

10:00 PM

Clear night

81° 💧 None 💨 11 mph H 68%30.03 inHg

11:00 PM

Clear night

79° 💧 None 💨 9 mph H 77%30.03 inHg

Friday

12:00 AM

Clear night

78° 💧 None 💨 7 mph H 82%30.03 inHg

1:00 AM

Clear night

76° 💧 None 💨 6 mph H 87%30.03 inHg

2:00 AM

Clear night

75° 💧 None 💨 4 mph H 91%30.03 inHg

3:00 AM

Clear night

75° 💧 None 💨 5 mph H 93%30.00 inHg

4:00 AM

Mostly clear night

74° 💧 None 💨 5 mph H 96%30.00 inHg

5:00 AM

Partly cloudy night

74° 💧 None 💨 5 mph H 96%30.00 inHg

6:00 AM

Mostly clear night

74° 💧 None 💨 5 mph H 97%30.00 inHg

7:00 AM

Mostly sunny

73° 💧 None 💨 5 mph H 97%30.00 inHg

8:00 AM

Mostly sunny

76° 💧 None 💨 4 mph H 89%30.03 inHg

9:00 AM

Mostly sunny

80° 💧 None 💨 5 mph H 78%30.03 inHg

10:00 AM

Mostly sunny

84° 💧 None 💨 6 mph H 67%30.03 inHg

11:00 AM

Mostly sunny

87° 💧 None 💨 7 mph H 58%30.03 inHg

12:00 PM

Mostly sunny

90° 💧 None 💨 7 mph H 51%30.03 inHg

1:00 PM

Mostly sunny

92° 💧 None 💨 8 mph H 46%30.00 inHg

2:00 PM

Mostly sunny

94° 💧 None 💨 8 mph H 43%29.97 inHg

3:00 PM

Partly cloudy

95° 💧 None 💨 8 mph H 41%29.94 inHg

4:00 PM

Partly cloudy

95° 💧 None 💨 9 mph H 41%29.91 inHg

5:00 PM

Mostly sunny

94° 💧 None 💨 9 mph H 42%29.91 inHg

6:00 PM

Mostly sunny

92° 💧 None 💨 8 mph H 46%29.88 inHg

7:00 PM

Mostly sunny

89° 💧 None 💨 4 mph H 53%29.91 inHg

8:00 PM

Clear night

85° 💧 None 💨 6 mph H 57%29.91 inHg

9:00 PM

Overcast night

83° 💧 None 💨 12 mph H 64%29.91 inHg

10:00 PM

Overcast night

82° 💧 None 💨 13 mph H 68%29.91 inHg

11:00 PM

Overcast night

81° 💧 None 💨 12 mph H 72%29.91 inHg

Saturday

12:00 AM

Mostly cloudy night

79° 💧 None 💨 8 mph H 76%29.91 inHg

1:00 AM

Mostly cloudy night

77° 💧 None 💨 6 mph H 79%29.91 inHg

2:00 AM

Mostly cloudy night

77° 💧 None 💨 7 mph H 79%29.91 inHg

3:00 AM

Overcast night

76° 💧 None 💨 6 mph H 79%29.88 inHg

4:00 AM

Overcast night

76° 💧 None 💨 6 mph H 81%29.88 inHg

5:00 AM

Overcast night

76° 💧 None 💨 8 mph H 82%29.85 inHg

6:00 AM

Overcast night

75° 💧 None 💨 9 mph H 83%29.85 inHg

7:00 AM

Mostly cloudy

75° 💧 None 💨 8 mph H 83%29.88 inHg

8:00 AM

Mostly cloudy

77° 💧 None 💨 8 mph H 81%29.88 inHg

9:00 AM

Partly cloudy

82° 💧 None 💨 10 mph H 71%29.91 inHg

10:00 AM

Mostly cloudy

85° 💧 None 💨 8 mph H 61%29.88 inHg

11:00 AM

Mostly cloudy

90° 💧 None 💨 6 mph H 52%29.88 inHg

12:00 PM

Mostly cloudy

93° 💧 None 💨 5 mph H 46%29.88 inHg

1:00 PM

Mostly cloudy

96° 💧 None 💨 3 mph H 41%29.85 inHg

2:00 PM

Mostly cloudy

98° 💧 None 💨 2 mph H 37%29.83 inHg

3:00 PM

Mostly cloudy

99° 💧 None 💨 3 mph H 35%29.83 inHg

4:00 PM

Mostly cloudy

99° 💧 None 💨 5 mph H 34%29.80 inHg

5:00 PM

Mostly cloudy

98° 💧 None 💨 8 mph H 35%29.74 inHg

6:00 PM

Mostly cloudy

96° 💧 None 💨 7 mph H 41%29.74 inHg

7:00 PM

Mostly cloudy

91° 💧 None 💨 9 mph H 49%29.74 inHg

8:00 PM

Light rain

88° 💧 0.01 in 💨 3 mph H 56%29.77 inHg

9:00 PM

Heavy rain

72° 💧 0.27 in 💨 14 mph H 92%29.85 inHg

10:00 PM

Moderate rain

73° 💧 0.09 in 💨 6 mph H 90%29.85 inHg

11:00 PM

Light rain

74° 💧 0.02 in 💨 6 mph H 91%29.88 inHg

Sunday

12:00 AM

Light rain

74° 💧 0.01 in 💨 3 mph H 93%29.91 inHg

1:00 AM

Overcast night

74° 💧 None 💨 3 mph H 94%29.88 inHg

2:00 AM

Overcast night

74° 💧 None 💨 5 mph H 94%29.85 inHg

3:00 AM

Overcast night

73° 💧 None 💨 6 mph H 95%29.83 inHg

4:00 AM

Overcast night

72° 💧 None 💨 7 mph H 96%29.83 inHg

5:00 AM

Overcast night

71° 💧 None 💨 6 mph H 96%29.85 inHg

6:00 AM

Overcast night

71° 💧 None 💨 7 mph H 97%29.88 inHg

In St. Charles and, more broadly, across the state of South Carolina: The evening will feature a mix of sun and clouds, with temperatures remaining hot, ranging from 86 to 93 degrees Fahrenheit. Winds will be light, coming from the southeast at around 8 mph, with gusts reaching up to 19 mph. No precipitation is expected during the evening hours, so outdoor activities can generally continue as planned. The temperature will stay steady through the night, providing warm conditions for this time of day. It’s a good idea to stay hydrated and use sun protection if you're spending time outdoors earlier in the evening. Overall, expect a warm and relatively calm evening with gentle breezes.

15-Day Weather Outlook for St. Charles

TomorrowTomorrow

Sunny 95°/74° 💧 None 💨 11 mph

Friday, Sep 4Fri Sep 4

Mostly sunny 95°/73° 💧 None 💨 13 mph

Saturday, Sep 5Sat Sep 5

Moderate rain 98°/74° 💧 0.38 in 💨 8 mph

Sunday, Sep 6Sun Sep 6

Moderate rain 84°/71° 💧 0.27 in 💨 12 mph

Monday, Sep 7Mon Sep 7

Mostly sunny 87°/69° 💧 None 💨 13 mph

Tuesday, Sep 8Tue Sep 8

Overcast 88°/69° 💧 None 💨 8 mph

Wednesday, Sep 9Wed Sep 9

Overcast 88°/71° 💧 None 💨 7 mph

Thursday, Sep 10Thu Sep 10

Light rain 101°/74° 💧 0.03 in 💨 13 mph

Friday, Sep 11Fri Sep 11

Light rain 99°/76° 💧 0.02 in 💨 8 mph

Saturday, Sep 12Sat Sep 12

Light rain 97°/74° 💧 0.09 in 💨 14 mph

Sunday, Sep 13Sun Sep 13

Moderate rain 93°/74° 💧 0.19 in 💨 10 mph

Monday, Sep 14Mon Sep 14

Light rain 88°/70° 💧 0.20 in 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 94°/72° 💧 None 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Sunny 93°/71° 💧 None 💨 8 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 97°/73° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. Charles

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for St. Charles

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 7:00 AM

PM2.5 Fine particles Good 2,1µg/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 3,1µg/m³

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

O₃ Ozone Good 4,6µg/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 favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in St. Charles

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 8,9Very high 😊Good

Tomorrow UV 9,0Very high 😊Good

Friday UV 9,1Very high 🙂Fair

Saturday UV 8,7Very high 🙂Fair

Sunday UV 8,0Very high 😊Good

Monday UV 7,0High —Unavailable

Tuesday UV 7,0High —Unavailable

Hourly UV index today

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

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

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

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.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for St. Charles

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 3.35 Population: 139

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Forecast data for St. Charles were last refreshed today at 6:05 AM. The current forecast period extends through 04/09/2026 at 4:00 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.