What is the weather in Charlestown right now?

Current weather in Charlestown is light rain.

Where can I find the hourly weather forecast for Charlestown?

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

Is the weather forecast for Charlestown updated regularly?

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

Now · 1:45 PM

Charlestown Weather & Hourly Forecast

United States · Maryland · 21901

82°F

Light rain

Feels like: 88°F

💧 Humidity 73% 🌡 Pressure 29.88 inHg 💨 Wind 4 mph 👁 Visibility 7.2 mi ☁ Clouds 100% ☀️ UV index 3.7 · Moderate 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Charlestown

Today

2:00 PM

Light rain

82° 💧 0.010 in 💨 4 mph H 73%29.88 inHg

5:00 PM

Partly cloudy

83° 💧 0.011 in 💨 5 mph H 66%29.85 inHg

8:00 PM

Clear night

77° 💧 0.001 in 💨 5 mph H 88%29.85 inHg

11:00 PM

Clear night

75° 💧 None 💨 4 mph H 94%29.91 inHg

Tomorrow

2:00 AM

Partly cloudy night

73° 💧 None 💨 7 mph H 93%29.88 inHg

5:00 AM

Clear night

71° 💧 0.000 in 💨 10 mph H 85%29.94 inHg

8:00 AM

Sunny

70° 💧 None 💨 10 mph H 80%30.00 inHg

11:00 AM

Sunny

74° 💧 None 💨 11 mph H 62%30.09 inHg

2:00 PM

Sunny

76° 💧 None 💨 13 mph H 44%30.09 inHg

5:00 PM

Sunny

74° 💧 None 💨 12 mph H 44%30.09 inHg

8:00 PM

Clear night

67° 💧 None 💨 7 mph H 57%30.15 inHg

11:00 PM

Clear night

63° 💧 None 💨 8 mph H 62%30.24 inHg

Tuesday

2:00 AM

Mostly clear night

60° 💧 None 💨 9 mph H 64%30.27 inHg

5:00 AM

Clear night

57° 💧 None 💨 7 mph H 71%30.30 inHg

8:00 AM

Sunny

58° 💧 None 💨 7 mph H 71%30.33 inHg

11:00 AM

Mostly sunny

69° 💧 None 💨 5 mph H 51%30.39 inHg

Today

2:00 PM

Light rain

82° 💧 0.006 in 💨 4 mph H 73%29.88 inHg

3:00 PM

Mostly sunny

83° 💧 0.002 in 💨 3 mph H 69%29.85 inHg

4:00 PM

Sunny

84° 💧 0.002 in 💨 4 mph H 67%29.85 inHg

5:00 PM

Partly cloudy

83° 💧 0.001 in 💨 5 mph H 66%29.85 inHg

6:00 PM

Mostly sunny

82° 💧 0.003 in 💨 5 mph H 70%29.83 inHg

7:00 PM

Light rain

79° 💧 0.006 in 💨 5 mph H 81%29.85 inHg

8:00 PM

Clear night

77° 💧 0.001 in 💨 5 mph H 88%29.85 inHg

9:00 PM

Clear night

76° 💧 None 💨 5 mph H 92%29.88 inHg

10:00 PM

Clear night

75° 💧 None 💨 3 mph H 93%29.91 inHg

11:00 PM

Clear night

75° 💧 None 💨 4 mph H 94%29.91 inHg

Tomorrow

12:00 AM

Clear night

74° 💧 None 💨 3 mph H 94%29.88 inHg

1:00 AM

Mostly clear night

73° 💧 None 💨 5 mph H 93%29.88 inHg

2:00 AM

Partly cloudy night

73° 💧 None 💨 7 mph H 93%29.88 inHg

3:00 AM

Clear night

73° 💧 None 💨 9 mph H 89%29.88 inHg

4:00 AM

Clear night

72° 💧 None 💨 10 mph H 85%29.91 inHg

5:00 AM

Clear night

71° 💧 None 💨 10 mph H 85%29.94 inHg

6:00 AM

Clear night

70° 💧 0.000 in 💨 10 mph H 84%29.94 inHg

7:00 AM

Mostly sunny

69° 💧 None 💨 10 mph H 84%29.97 inHg

8:00 AM

Sunny

70° 💧 None 💨 10 mph H 80%30.00 inHg

9:00 AM

Sunny

71° 💧 None 💨 12 mph H 73%30.03 inHg

10:00 AM

Sunny

73° 💧 None 💨 12 mph H 67%30.06 inHg

11:00 AM

Sunny

74° 💧 None 💨 11 mph H 62%30.09 inHg

12:00 PM

Sunny

75° 💧 None 💨 12 mph H 57%30.09 inHg

1:00 PM

Sunny

76° 💧 None 💨 13 mph H 49%30.09 inHg

2:00 PM

Sunny

76° 💧 None 💨 13 mph H 44%30.09 inHg

3:00 PM

Sunny

75° 💧 None 💨 13 mph H 42%30.09 inHg

4:00 PM

Sunny

75° 💧 None 💨 12 mph H 43%30.09 inHg

5:00 PM

Sunny

74° 💧 None 💨 12 mph H 44%30.09 inHg

6:00 PM

Sunny

72° 💧 None 💨 10 mph H 47%30.12 inHg

7:00 PM

Sunny

70° 💧 None 💨 8 mph H 52%30.12 inHg

8:00 PM

Clear night

67° 💧 None 💨 7 mph H 57%30.15 inHg

9:00 PM

Clear night

65° 💧 None 💨 8 mph H 59%30.18 inHg

10:00 PM

Clear night

64° 💧 None 💨 7 mph H 62%30.21 inHg

11:00 PM

Clear night

63° 💧 None 💨 8 mph H 62%30.24 inHg

Tuesday

12:00 AM

Clear night

62° 💧 None 💨 9 mph H 62%30.24 inHg

1:00 AM

Clear night

61° 💧 None 💨 9 mph H 62%30.27 inHg

2:00 AM

Mostly clear night

60° 💧 None 💨 9 mph H 64%30.27 inHg

3:00 AM

Clear night

59° 💧 None 💨 8 mph H 67%30.27 inHg

4:00 AM

Clear night

58° 💧 None 💨 7 mph H 70%30.30 inHg

5:00 AM

Clear night

57° 💧 None 💨 7 mph H 71%30.30 inHg

6:00 AM

Clear night

56° 💧 None 💨 7 mph H 72%30.30 inHg

7:00 AM

Sunny

56° 💧 None 💨 7 mph H 73%30.33 inHg

8:00 AM

Sunny

58° 💧 None 💨 7 mph H 71%30.33 inHg

9:00 AM

Sunny

62° 💧 None 💨 7 mph H 62%30.36 inHg

10:00 AM

Sunny

66° 💧 None 💨 6 mph H 56%30.36 inHg

11:00 AM

Mostly sunny

69° 💧 None 💨 5 mph H 51%30.39 inHg

12:00 PM

Mostly sunny

71° 💧 None 💨 3 mph H 44%30.39 inHg

1:00 PM

Sunny

73° 💧 None 💨 3 mph H 42%30.36 inHg

2:00 PM

Mostly sunny

74° 💧 None 💨 5 mph H 42%30.33 inHg

3:00 PM

Sunny

74° 💧 None 💨 4 mph H 42%30.33 inHg

4:00 PM

Sunny

75° 💧 None 💨 4 mph H 44%30.30 inHg

5:00 PM

Sunny

74° 💧 None 💨 5 mph H 45%30.30 inHg

6:00 PM

Sunny

73° 💧 None 💨 4 mph H 49%30.30 inHg

7:00 PM

Partly cloudy

69° 💧 None 💨 4 mph H 61%30.30 inHg

8:00 PM

Partly cloudy night

67° 💧 None 💨 5 mph H 67%30.30 inHg

Wednesday

5:00 AM

Mostly cloudy night

63° 💧 None 💨 4 mph H 85%30.33 inHg

8:00 AM

Mostly sunny

65° 💧 None 💨 4 mph H 82%30.36 inHg

11:00 AM

Mostly sunny

73° 💧 None 💨 6 mph H 68%30.39 inHg

2:00 PM

Sunny

77° 💧 None 💨 6 mph H 63%30.33 inHg

5:00 PM

Sunny

78° 💧 None 💨 5 mph H 60%30.27 inHg

8:00 PM

Clear night

76° 💧 None 💨 3 mph H 68%30.30 inHg

11:00 PM

Clear night

71° 💧 None 💨 6 mph H 83%30.33 inHg

Thursday

2:00 AM

Mostly clear night

69° 💧 None 💨 7 mph H 85%30.30 inHg

5:00 AM

Mostly clear night

69° 💧 None 💨 5 mph H 86%30.30 inHg

8:00 AM

Sunny

71° 💧 None 💨 3 mph H 80%30.30 inHg

11:00 AM

Mostly sunny

76° 💧 None 💨 5 mph H 66%30.30 inHg

2:00 PM

Sunny

81° 💧 None 💨 9 mph H 56%30.24 inHg

5:00 PM

Sunny

81° 💧 None 💨 9 mph H 56%30.15 inHg

8:00 PM

Clear night

77° 💧 None 💨 7 mph H 65%30.15 inHg

11:00 PM

Clear night

74° 💧 None 💨 8 mph H 72%30.15 inHg

Friday

2:00 AM

Clear night

75° 💧 None 💨 9 mph H 75%30.12 inHg

5:00 AM

Clear night

73° 💧 None 💨 8 mph H 76%30.06 inHg

8:00 AM

Mostly cloudy

73° 💧 None 💨 5 mph H 71%30.09 inHg

11:00 AM

Partly cloudy

79° 💧 None 💨 3 mph H 61%30.06 inHg

2:00 PM

Moderate rain

84° 💧 None 💨 6 mph H 62%30.00 inHg

5:00 PM

Mostly sunny

83° 💧 None 💨 10 mph H 62%30.00 inHg

8:00 PM

Clear night

79° 💧 None 💨 7 mph H 61%30.03 inHg

11:00 PM

Mostly clear night

74° 💧 None 💨 9 mph H 61%30.06 inHg

Saturday

2:00 AM

Clear night

70° 💧 None 💨 8 mph H 71%30.06 inHg

8:00 AM

Mostly sunny

67° 💧 None 💨 10 mph H 64%30.18 inHg

2:00 PM

Sunny

62° 💧 None 💨 10 mph H 63%30.24 inHg

8:00 PM

Mostly clear night

76° 💧 None 💨 2 mph H 47%30.18 inHg

Sunday

2:00 AM

Partly cloudy night

71° 💧 None 💨 11 mph H 64%30.12 inHg

8:00 AM

Mostly sunny

67° 💧 None 💨 6 mph H 78%30.09 inHg

2:00 PM

Light rain

69° 💧 None 💨 7 mph H 83%30.06 inHg

8:00 PM

Mostly clear night

81° 💧 None 💨 11 mph H 65%30.00 inHg

Monday

2:00 AM

Clear night

80° 💧 None 💨 10 mph H 71%29.94 inHg

8:00 AM

Partly cloudy

76° 💧 None 💨 1 mph H 89%29.97 inHg

2:00 PM

Partly cloudy

74° 💧 None 💨 3 mph H 89%30.00 inHg

8:00 PM

Mostly cloudy night

86° 💧 None 💨 2 mph H 61%30.00 inHg

Tuesday

2:00 AM

Light thunderstorms

75° 💧 None 💨 9 mph H 96%30.06 inHg

8:00 AM

Overcast

73° 💧 None 💨 7 mph H 98%30.06 inHg

2:00 PM

Overcast

73° 💧 None 💨 7 mph H 97%30.06 inHg

8:00 PM

Light rain

81° 💧 None 💨 3 mph H 78%30.03 inHg

Wednesday

2:00 AM

Light rain

76° 💧 None 💨 1 mph H 90%30.00 inHg

8:00 AM

Overcast

74° 💧 None 💨 3 mph H 97%29.97 inHg

2:00 PM

Partly cloudy

74° 💧 None 💨 4 mph H 97%29.97 inHg

8:00 PM

Mostly clear night

81° 💧 None 💨 4 mph H 76%29.88 inHg

Thursday

2:00 AM

Mostly clear night

77° 💧 None 💨 3 mph H 91%29.85 inHg

8:00 AM

Mostly sunny

74° 💧 None 💨 4 mph H 96%29.85 inHg

2:00 PM

Partly cloudy

74° 💧 None 💨 2 mph H 94%29.88 inHg

8:00 PM

Light rain

82° 💧 None 💨 3 mph H 71%29.88 inHg

Friday

2:00 AM

Light rain

76° 💧 None 💨 7 mph H 83%29.94 inHg

8:00 AM

Light rain

69° 💧 None 💨 13 mph H 90%30.03 inHg

2:00 PM

Moderate rain

67° 💧 None 💨 14 mph H 95%30.12 inHg

8:00 PM

Light rain

69° 💧 None 💨 18 mph H 92%30.12 inHg

Saturday

2:00 AM

Light rain

67° 💧 None 💨 17 mph H 95%30.12 inHg

8:00 AM

Moderate rain

67° 💧 None 💨 14 mph H 97%30.12 inHg

2:00 PM

Light rain

70° 💧 None 💨 13 mph H 96%30.09 inHg

8:00 PM

Moderate rain

72° 💧 None 💨 10 mph H 97%30.03 inHg

Sunday

2:00 AM

Heavy rain

69° 💧 None 💨 7 mph H 97%29.97 inHg

8:00 AM

Overcast

67° 💧 None 💨 7 mph H 95%29.91 inHg

2:00 PM

Mostly sunny

65° 💧 None 💨 8 mph H 91%29.91 inHg

8:00 PM

Overcast night

74° 💧 None 💨 10 mph H 71%29.88 inHg

Monday

2:00 AM

Mostly clear night

71° 💧 None 💨 5 mph H 84%29.85 inHg

In Charlestown and, more broadly, across the state of Maryland: The rest of the day will feature a mix of sun and clouds, with temperatures ranging from 75 to 79 degrees Fahrenheit. Light west winds are expected, generally around 7 mph, with occasional gusts reaching 21 mph. A small chance of rain remains, with possible accumulations of about 0.01 inches, and the highest probability of precipitation is around 26%. Overall, it will be a mild to warm day, with brief periods of cloud cover and gentle winds. No significant weather concerns are anticipated.

15-Day Weather Outlook for Charlestown

TomorrowTomorrow

Mostly sunny 77°/69° 💧 None 💨 13 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 75°/56° 💧 None 💨 9 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 78°/63° 💧 0.712 in 💨 6 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 81°/69° 💧 None 💨 9 mph

Friday, Sep 18Fri Sep 18

Moderate rain 84°/73° 💧 0.031 in 💨 10 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 79°/62° 💧 None 💨 10 mph

Sunday, Sep 20Sun Sep 20

Light rain 76°/67° 💧 0.016 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 81°/74° 💧 0.023 in 💨 11 mph

Tuesday, Sep 22Tue Sep 22

Light thunderstorms 86°/73° 💧 0.503 in 💨 9 mph

Wednesday, Sep 23Wed Sep 23

Light rain 81°/74° 💧 0.175 in 💨 4 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 81°/74° 💧 0.066 in 💨 4 mph

Friday, Sep 25Fri Sep 25

Moderate rain 82°/67° 💧 0.496 in 💨 14 mph

Saturday, Sep 26Sat Sep 26

Moderate rain 70°/67° 💧 0.990 in 💨 18 mph

Sunday, Sep 27Sun Sep 27

Heavy rain 72°/65° 💧 0.949 in 💨 10 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 74°/71° 💧 0.003 in 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Charlestown

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Charlestown

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 2:00 PM

PM2.5 Fine particles Good 4,2µg/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 4,4µg/m³

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

O₃ Ozone Good 42,8µg/m³

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

NO₂ Nitrogen dioxide Good 2,8µg/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 Charlestown

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 4,4Moderate 😊Good

Tomorrow UV 6,2High 😐Moderate

Tuesday UV 6,8High 🙂Fair

Wednesday UV 6,9High 😐Moderate

Thursday UV 7,0High 🙂Fair

Friday UV 7,0High —Unavailable

Saturday UV 6,0High —Unavailable

Hourly UV index today

2:00 PMUV 3,1 3:00 PMUV 4,4 4:00 PMUV 2,9 5:00 PMUV 1,3 6:00 PMUV 0,4 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.

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 Charlestown

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · CHARLESTOWN, MARYLAND

Tonight's Stargazing & Shooting Stars

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

98/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:47 PM–5:12 AM

☁ Cloud cover 3% Real hourly forecast for the best viewing hour.

☾ Moonlight 7% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 82° 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 Charlestown were last refreshed today at 1:45 PM. The current forecast period extends through 15/09/2026 at 11:00 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.