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Current weather in St. Charles is scattered clouds.

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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 · 11:37 PM

St. Charles Weather & Hourly Forecast

United States · Virginia · 24282

71°F

Partly cloudy night

Feels like: 75°F

💧 Humidity 94% 🌡 Pressure 30.00 inHg 💨 Wind 4 mph 👁 Visibility 13.9 mi ☁ Clouds 50% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for St. Charles

Tomorrow

12:00 AM

Partly cloudy night

71° 💧 None 💨 4 mph H 94%30.00 inHg

3:00 AM

Clear night

67° 💧 None 💨 3 mph H 97%29.97 inHg

6:00 AM

Mostly clear night

67° 💧 None 💨 1 mph H 93%30.00 inHg

9:00 AM

Sunny

74° 💧 0.001 in 💨 2 mph H 87%30.00 inHg

12:00 PM

Mostly cloudy

81° 💧 0.005 in 💨 4 mph H 65%30.00 inHg

3:00 PM

Strong thunderstorm

85° 💧 0.019 in 💨 4 mph H 52%29.94 inHg

6:00 PM

Light rain

75° 💧 0.013 in 💨 7 mph H 80%29.91 inHg

9:00 PM

Mostly cloudy night

70° 💧 None 💨 5 mph H 93%29.94 inHg

Saturday

12:00 AM

Overcast night

70° 💧 None 💨 1 mph H 88%29.94 inHg

3:00 AM

Overcast night

70° 💧 None 💨 1 mph H 82%29.94 inHg

6:00 AM

Mostly cloudy night

67° 💧 None 💨 2 mph H 90%29.97 inHg

9:00 AM

Overcast

72° 💧 None 💨 3 mph H 83%30.00 inHg

12:00 PM

Mostly cloudy

80° 💧 0.058 in 💨 5 mph H 66%30.03 inHg

3:00 PM

Light rain

74° 💧 0.013 in 💨 2 mph H 85%30.00 inHg

6:00 PM

Overcast

79° 💧 0.021 in 💨 4 mph H 64%29.94 inHg

9:00 PM

Light rain

71° 💧 0.057 in 💨 3 mph H 94%30.00 inHg

Tomorrow

12:00 AM

Partly cloudy night

71° 💧 None 💨 4 mph H 94%30.00 inHg

1:00 AM

Clear night

69° 💧 None 💨 4 mph H 96%29.97 inHg

2:00 AM

Clear night

68° 💧 None 💨 4 mph H 97%29.97 inHg

3:00 AM

Clear night

67° 💧 None 💨 3 mph H 97%29.97 inHg

4:00 AM

Clear night

67° 💧 None 💨 1 mph H 97%29.97 inHg

5:00 AM

Mostly clear night

67° 💧 None 💨 1 mph H 96%30.00 inHg

6:00 AM

Mostly clear night

67° 💧 None 💨 1 mph H 93%30.00 inHg

7:00 AM

Mostly clear night

68° 💧 None 💨 1 mph H 91%30.00 inHg

8:00 AM

Mostly sunny

69° 💧 None 💨 2 mph H 91%30.00 inHg

9:00 AM

Sunny

74° 💧 None 💨 2 mph H 87%30.00 inHg

10:00 AM

Mostly sunny

76° 💧 None 💨 1 mph H 81%30.00 inHg

11:00 AM

Mostly sunny

79° 💧 0.001 in 💨 3 mph H 70%30.00 inHg

12:00 PM

Mostly cloudy

81° 💧 0.001 in 💨 4 mph H 65%30.00 inHg

1:00 PM

Mostly sunny

83° 💧 0.001 in 💨 4 mph H 60%29.97 inHg

2:00 PM

Light thunderstorms

84° 💧 0.003 in 💨 4 mph H 55%29.97 inHg

3:00 PM

Strong thunderstorm

85° 💧 0.001 in 💨 4 mph H 52%29.94 inHg

4:00 PM

Light thunderstorms

83° 💧 0.007 in 💨 6 mph H 55%29.91 inHg

5:00 PM

Light thunderstorms

80° 💧 0.011 in 💨 7 mph H 66%29.91 inHg

6:00 PM

Light rain

75° 💧 0.012 in 💨 7 mph H 80%29.91 inHg

7:00 PM

Mostly cloudy

75° 💧 0.000 in 💨 6 mph H 82%29.94 inHg

8:00 PM

Mostly cloudy night

71° 💧 None 💨 4 mph H 91%29.94 inHg

9:00 PM

Mostly cloudy night

70° 💧 None 💨 5 mph H 93%29.94 inHg

10:00 PM

Mostly cloudy night

69° 💧 None 💨 3 mph H 92%29.94 inHg

11:00 PM

Mostly cloudy night

69° 💧 None 💨 2 mph H 91%29.97 inHg

Saturday

12:00 AM

Overcast night

70° 💧 None 💨 1 mph H 88%29.94 inHg

1:00 AM

Mostly cloudy night

70° 💧 None 💨 1 mph H 84%29.94 inHg

2:00 AM

Mostly cloudy night

70° 💧 None 💨 1 mph H 82%29.94 inHg

3:00 AM

Overcast night

70° 💧 None 💨 1 mph H 82%29.94 inHg

4:00 AM

Partly cloudy night

69° 💧 None 💨 2 mph H 84%29.94 inHg

5:00 AM

Partly cloudy night

68° 💧 None 💨 2 mph H 87%29.94 inHg

6:00 AM

Mostly cloudy night

67° 💧 None 💨 2 mph H 90%29.97 inHg

7:00 AM

Mostly cloudy night

67° 💧 None 💨 2 mph H 91%30.00 inHg

8:00 AM

Overcast

68° 💧 None 💨 3 mph H 89%30.00 inHg

9:00 AM

Overcast

72° 💧 None 💨 3 mph H 83%30.00 inHg

10:00 AM

Mostly cloudy

74° 💧 None 💨 4 mph H 79%30.03 inHg

11:00 AM

Mostly cloudy

78° 💧 None 💨 5 mph H 73%30.03 inHg

12:00 PM

Mostly cloudy

80° 💧 0.000 in 💨 5 mph H 66%30.03 inHg

1:00 PM

Mostly cloudy

83° 💧 None 💨 5 mph H 60%30.00 inHg

2:00 PM

Light thunderstorms

75° 💧 0.058 in 💨 6 mph H 80%30.03 inHg

3:00 PM

Light rain

74° 💧 0.013 in 💨 2 mph H 85%30.00 inHg

4:00 PM

Overcast

79° 💧 None 💨 2 mph H 73%29.94 inHg

5:00 PM

Overcast

80° 💧 None 💨 4 mph H 65%29.94 inHg

6:00 PM

Overcast

79° 💧 0.002 in 💨 4 mph H 64%29.94 inHg

7:00 PM

Light rain

75° 💧 0.011 in 💨 4 mph H 78%29.97 inHg

8:00 PM

Light rain

72° 💧 0.009 in 💨 5 mph H 88%30.00 inHg

9:00 PM

Light rain

71° 💧 0.016 in 💨 3 mph H 94%30.00 inHg

10:00 PM

Light rain

70° 💧 0.016 in 💨 1 mph H 96%30.03 inHg

11:00 PM

Light rain

69° 💧 0.024 in 💨 2 mph H 99%30.03 inHg

Sunday

12:00 AM

Light rain

69° 💧 0.006 in 💨 1 mph H 99%30.03 inHg

1:00 AM

Mostly clear night

68° 💧 0.003 in 💨 2 mph H 100%30.03 inHg

2:00 AM

Fog at night

68° 💧 0.001 in 💨 2 mph H 100%30.03 inHg

3:00 AM

Fog at night

67° 💧 None 💨 2 mph H 100%30.00 inHg

4:00 AM

Light rain

67° 💧 0.012 in 💨 1 mph H 100%30.00 inHg

5:00 AM

Light rain

67° 💧 0.009 in 💨 1 mph H 100%30.00 inHg

6:00 AM

Light rain

67° 💧 0.015 in 💨 1 mph H 100%30.03 inHg

7:00 AM

Light rain

67° 💧 0.005 in 💨 1 mph H 99%30.06 inHg

8:00 AM

Overcast

68° 💧 0.000 in 💨 2 mph H 99%30.06 inHg

5:00 PM

Light rain

81° 💧 None 💨 3 mph H 68%29.97 inHg

8:00 PM

Mostly clear night

74° 💧 None 💨 3 mph H 84%30.03 inHg

11:00 PM

Clear night

69° 💧 None 💨 3 mph H 93%30.09 inHg

Monday

2:00 AM

Clear night

67° 💧 None 💨 3 mph H 94%30.06 inHg

5:00 AM

Mostly clear night

65° 💧 None 💨 1 mph H 94%30.06 inHg

8:00 AM

Mostly sunny

67° 💧 None 💨 2 mph H 91%30.12 inHg

11:00 AM

Mostly sunny

78° 💧 None 💨 3 mph H 68%30.15 inHg

2:00 PM

Mostly cloudy

83° 💧 None 💨 4 mph H 53%30.09 inHg

5:00 PM

Mostly sunny

82° 💧 None 💨 4 mph H 56%30.06 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 4 mph H 80%30.09 inHg

11:00 PM

Clear night

71° 💧 None 💨 6 mph H 87%30.15 inHg

Tuesday

2:00 AM

Clear night

68° 💧 None 💨 5 mph H 94%30.15 inHg

5:00 AM

Clear night

68° 💧 None 💨 5 mph H 93%30.15 inHg

8:00 AM

Sunny

69° 💧 None 💨 6 mph H 89%30.21 inHg

11:00 AM

Sunny

78° 💧 None 💨 5 mph H 72%30.24 inHg

2:00 PM

Light rain

84° 💧 None 💨 3 mph H 58%30.21 inHg

5:00 PM

Mostly sunny

85° 💧 None 💨 1 mph H 52%30.15 inHg

8:00 PM

Mostly clear night

77° 💧 None 💨 3 mph H 80%30.18 inHg

11:00 PM

Mostly clear night

73° 💧 None 💨 8 mph H 83%30.24 inHg

Wednesday

2:00 AM

Clear night

69° 💧 None 💨 5 mph H 91%30.27 inHg

5:00 AM

Mostly clear night

67° 💧 None 💨 4 mph H 93%30.27 inHg

8:00 AM

Mostly sunny

68° 💧 None 💨 3 mph H 90%30.30 inHg

11:00 AM

Mostly sunny

77° 💧 None 💨 2 mph H 72%30.33 inHg

2:00 PM

Light rain

84° 💧 None 💨 4 mph H 61%30.27 inHg

8:00 PM

Mostly clear night

87° 💧 None 💨 1 mph H 53%30.24 inHg

Thursday

2:00 AM

Mostly clear night

78° 💧 None 💨 4 mph H 81%30.21 inHg

8:00 AM

Sunny

72° 💧 None 💨 4 mph H 89%30.24 inHg

2:00 PM

Sunny

71° 💧 None 💨 1 mph H 85%30.27 inHg

8:00 PM

Clear night

88° 💧 None 💨 2 mph H 51%30.21 inHg

Friday

2:00 AM

Clear night

79° 💧 None 💨 2 mph H 71%30.15 inHg

8:00 AM

Sunny

74° 💧 None 💨 1 mph H 71%30.15 inHg

2:00 PM

Sunny

70° 💧 None 💨 1 mph H 88%30.18 inHg

8:00 PM

Mostly cloudy night

89° 💧 None 💨 3 mph H 50%30.09 inHg

Saturday

2:00 AM

Mostly clear night

74° 💧 None 💨 5 mph H 82%30.06 inHg

8:00 AM

Mostly sunny

69° 💧 None 💨 3 mph H 96%30.06 inHg

2:00 PM

Partly cloudy

68° 💧 None 💨 3 mph H 96%30.03 inHg

8:00 PM

Mostly clear night

87° 💧 None 💨 5 mph H 51%29.94 inHg

Sunday

2:00 AM

Clear night

73° 💧 None 💨 2 mph H 97%29.85 inHg

8:00 AM

Sunny

70° 💧 None 💨 2 mph H 89%29.85 inHg

2:00 PM

Mostly sunny

69° 💧 None 💨 6 mph H 84%29.85 inHg

8:00 PM

Light rain

79° 💧 None 💨 11 mph H 60%29.80 inHg

Monday

2:00 AM

Overcast night

65° 💧 None 💨 10 mph H 84%29.91 inHg

8:00 AM

Overcast

59° 💧 None 💨 10 mph H 74%30.00 inHg

2:00 PM

Overcast

55° 💧 None 💨 6 mph H 85%30.12 inHg

8:00 PM

Clear night

68° 💧 None 💨 9 mph H 45%30.15 inHg

Tuesday

2:00 AM

Clear night

60° 💧 None 💨 7 mph H 56%30.18 inHg

8:00 AM

Sunny

54° 💧 None 💨 9 mph H 66%30.21 inHg

2:00 PM

Sunny

51° 💧 None 💨 7 mph H 72%30.30 inHg

8:00 PM

Mostly clear night

70° 💧 None 💨 7 mph H 37%30.24 inHg

Wednesday

2:00 AM

Mostly clear night

62° 💧 None 💨 9 mph H 50%30.24 inHg

8:00 AM

Overcast

55° 💧 None 💨 9 mph H 59%30.30 inHg

2:00 PM

Overcast

49° 💧 None 💨 10 mph H 54%30.36 inHg

8:00 PM

Mostly cloudy night

66° 💧 None 💨 9 mph H 37%30.30 inHg

Thursday

2:00 AM

Clear night

62° 💧 None 💨 10 mph H 49%30.24 inHg

8:00 AM

Mostly sunny

54° 💧 None 💨 9 mph H 69%30.27 inHg

2:00 PM

Overcast

54° 💧 None 💨 9 mph H 70%30.33 inHg

8:00 PM

Partly cloudy night

68° 💧 None 💨 10 mph H 52%30.27 inHg

Friday

2:00 AM

Overcast night

64° 💧 None 💨 8 mph H 60%30.21 inHg

8:00 AM

Overcast

57° 💧 None 💨 7 mph H 68%30.18 inHg

2:00 PM

Moderate rain

53° 💧 None 💨 9 mph H 92%30.12 inHg

In St. Charles and, more broadly, across the state of Virginia: Tonight, expect a mix of sun and clouds with temperatures remaining mild to warm, between 78 and 83 degrees Fahrenheit. Light winds from the west, up to 3 mph, will occasionally gust to around 10 mph. There is a possible chance of rain, with an estimated accumulation of about 0.16 inches during the evening hours. Overall, skies may be partly cloudy with brief periods of sunshine, but keep an eye out for potential showers. The weather conditions are generally calm, but the chance of rain means staying prepared for light showers is advisable as the evening progresses. Temperatures will gradually cool into the night, making it a comfortable evening for outdoor activities.

15-Day Weather Outlook for St. Charles

Saturday, Sep 12Sat Sep 12

Light thunderstorms 83°/67° 💧 None 💨 6 mph

Sunday, Sep 13Sun Sep 13

Light rain 81°/67° 💧 0.509 in 💨 5 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 85°/65° 💧 0.009 in 💨 3 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 88°/68° 💧 0.001 in 💨 4 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 87°/69° 💧 0.011 in 💨 3 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 88°/71° 💧 0.018 in 💨 4 mph

Friday, Sep 18Fri Sep 18

Mostly cloudy 89°/70° 💧 0.004 in 💨 3 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 87°/68° 💧 0.034 in 💨 5 mph

Sunday, Sep 20Sun Sep 20

Light rain 79°/69° 💧 0.127 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Overcast 68°/55° 💧 0.088 in 💨 10 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 70°/51° 💧 None 💨 9 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 66°/49° 💧 None 💨 10 mph

Thursday, Sep 24Thu Sep 24

Overcast 68°/54° 💧 0.001 in 💨 10 mph

Friday, Sep 25Fri Sep 25

Moderate rain 64°/53° 💧 0.058 in 💨 9 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 12:00 AM

PM2.5 Fine particles Good 5,0µg/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 6,7µg/m³

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

O₃ Ozone Good 39,8µg/m³

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

NO₂ Nitrogen dioxide Good 7,1µg/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 8,0Very high —Unavailable

Tomorrow UV 7,9High 😐Moderate

Saturday UV 4,6Moderate 🙂Fair

Sunday UV 7,8High 🙂Fair

Monday UV 7,8High 🙂Fair

Tuesday UV 7,0High —Unavailable

Wednesday UV 7,0High —Unavailable

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

NIGHT SKY · ST. CHARLES, VIRGINIA

Tonight's Stargazing & Shooting Stars

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

93/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 9:15 PM–5:43 AM

☁ Cloud cover 2% Real hourly forecast for the best viewing hour.

☾ Moonlight 0% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 74° 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 min78%

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 St. Charles were last refreshed today at 11:37 PM. The current forecast period extends through 12/09/2026 at 9:00 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.