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Current weather in Merrifield is few clouds.

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

Now · 9:47 PM

Merrifield Weather & Hourly Forecast

United States · Virginia · 22031

79°F

Mostly clear night

Feels like: 84°F

💧 Humidity 72% 🌡 Pressure 29.91 inHg 💨 Wind 5 mph 👁 Visibility 18.3 mi ☁ Clouds 24% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Merrifield

Today

10:00 PM

Mostly clear night

79° 💧 0.000 in 💨 5 mph H 72%29.91 inHg

Tomorrow

1:00 AM

Light rain

75° 💧 0.043 in 💨 5 mph H 88%29.94 inHg

4:00 AM

Mostly clear night

73° 💧 0.000 in 💨 6 mph H 90%29.91 inHg

7:00 AM

Mostly sunny

72° 💧 None 💨 5 mph H 85%29.94 inHg

10:00 AM

Mostly cloudy

78° 💧 0.000 in 💨 5 mph H 55%30.00 inHg

1:00 PM

Overcast

82° 💧 None 💨 5 mph H 46%30.00 inHg

4:00 PM

Mostly cloudy

85° 💧 None 💨 2 mph H 44%29.94 inHg

7:00 PM

Mostly cloudy

81° 💧 0.002 in 💨 6 mph H 49%29.94 inHg

10:00 PM

Mostly cloudy night

76° 💧 0.014 in 💨 3 mph H 61%30.00 inHg

Saturday

1:00 AM

Light rain

71° 💧 0.096 in 💨 3 mph H 87%30.03 inHg

4:00 AM

Mostly cloudy night

71° 💧 0.006 in 💨 5 mph H 99%30.00 inHg

7:00 AM

Overcast

71° 💧 0.052 in 💨 6 mph H 99%30.03 inHg

10:00 AM

Light rain

72° 💧 0.133 in 💨 7 mph H 98%30.06 inHg

1:00 PM

Light rain

81° 💧 0.105 in 💨 6 mph H 74%30.03 inHg

4:00 PM

Light rain

80° 💧 0.031 in 💨 5 mph H 82%29.97 inHg

7:00 PM

Light thunderstorms

75° 💧 0.135 in 💨 4 mph H 94%29.97 inHg

Today

10:00 PM

Mostly clear night

79° 💧 None 💨 5 mph H 72%29.91 inHg

11:00 PM

Partly cloudy night

78° 💧 None 💨 4 mph H 76%29.91 inHg

Tomorrow

12:00 AM

Overcast night

77° 💧 0.000 in 💨 4 mph H 78%29.91 inHg

1:00 AM

Light rain

75° 💧 0.037 in 💨 5 mph H 88%29.94 inHg

2:00 AM

Light rain

74° 💧 0.005 in 💨 5 mph H 91%29.91 inHg

3:00 AM

Partly cloudy night

74° 💧 0.001 in 💨 6 mph H 90%29.91 inHg

4:00 AM

Mostly clear night

73° 💧 0.000 in 💨 6 mph H 90%29.91 inHg

5:00 AM

Mostly clear night

73° 💧 None 💨 6 mph H 90%29.91 inHg

6:00 AM

Mostly clear night

72° 💧 None 💨 6 mph H 88%29.94 inHg

7:00 AM

Mostly sunny

72° 💧 None 💨 5 mph H 85%29.94 inHg

8:00 AM

Mostly cloudy

74° 💧 None 💨 5 mph H 78%29.97 inHg

9:00 AM

Mostly cloudy

76° 💧 None 💨 6 mph H 64%30.00 inHg

10:00 AM

Mostly cloudy

78° 💧 None 💨 5 mph H 55%30.00 inHg

11:00 AM

Mostly cloudy

81° 💧 0.000 in 💨 6 mph H 49%30.00 inHg

12:00 PM

Overcast

82° 💧 None 💨 5 mph H 46%30.00 inHg

1:00 PM

Overcast

82° 💧 None 💨 5 mph H 46%30.00 inHg

2:00 PM

Overcast

83° 💧 None 💨 4 mph H 45%29.97 inHg

3:00 PM

Partly cloudy

83° 💧 None 💨 4 mph H 46%29.97 inHg

4:00 PM

Mostly cloudy

85° 💧 None 💨 2 mph H 44%29.94 inHg

5:00 PM

Mostly cloudy

85° 💧 None 💨 3 mph H 44%29.94 inHg

6:00 PM

Mostly cloudy

84° 💧 None 💨 5 mph H 46%29.94 inHg

7:00 PM

Mostly cloudy

81° 💧 None 💨 6 mph H 49%29.94 inHg

8:00 PM

Mostly cloudy night

78° 💧 0.000 in 💨 6 mph H 55%29.97 inHg

9:00 PM

Mostly cloudy night

77° 💧 0.001 in 💨 5 mph H 58%30.00 inHg

10:00 PM

Mostly cloudy night

76° 💧 None 💨 3 mph H 61%30.00 inHg

11:00 PM

Mostly cloudy night

76° 💧 None 💨 4 mph H 62%30.03 inHg

Saturday

12:00 AM

Light rain

73° 💧 0.014 in 💨 2 mph H 71%30.03 inHg

1:00 AM

Light rain

71° 💧 0.051 in 💨 3 mph H 87%30.03 inHg

2:00 AM

Light rain

70° 💧 0.016 in 💨 5 mph H 93%30.00 inHg

3:00 AM

Light rain

71° 💧 0.029 in 💨 6 mph H 97%30.00 inHg

4:00 AM

Mostly cloudy night

71° 💧 0.004 in 💨 5 mph H 99%30.00 inHg

5:00 AM

Overcast night

71° 💧 0.001 in 💨 4 mph H 99%30.00 inHg

6:00 AM

Overcast night

71° 💧 0.001 in 💨 5 mph H 99%30.00 inHg

7:00 AM

Overcast

71° 💧 0.001 in 💨 6 mph H 99%30.03 inHg

8:00 AM

Light rain

72° 💧 0.004 in 💨 8 mph H 98%30.03 inHg

9:00 AM

Light thunderstorms

72° 💧 0.047 in 💨 8 mph H 97%30.06 inHg

10:00 AM

Light rain

72° 💧 0.052 in 💨 7 mph H 98%30.06 inHg

11:00 AM

Light thunderstorms

73° 💧 0.059 in 💨 7 mph H 96%30.06 inHg

12:00 PM

Light thunderstorms

78° 💧 0.022 in 💨 7 mph H 81%30.03 inHg

1:00 PM

Light rain

81° 💧 0.006 in 💨 6 mph H 74%30.03 inHg

2:00 PM

Light thunderstorms

76° 💧 0.058 in 💨 8 mph H 87%30.03 inHg

3:00 PM

Light thunderstorms

76° 💧 0.041 in 💨 4 mph H 91%30.00 inHg

4:00 PM

Light rain

80° 💧 0.006 in 💨 5 mph H 82%29.97 inHg

5:00 PM

Overcast

82° 💧 0.001 in 💨 6 mph H 74%29.94 inHg

6:00 PM

Light thunderstorms

78° 💧 0.023 in 💨 4 mph H 84%29.97 inHg

7:00 PM

Light thunderstorms

75° 💧 0.036 in 💨 4 mph H 94%29.97 inHg

8:00 PM

Light thunderstorms

74° 💧 0.094 in 💨 1 mph H 98%29.97 inHg

9:00 PM

Light rain

73° 💧 0.004 in 💨 4 mph H 99%29.97 inHg

10:00 PM

Mostly cloudy night

73° 💧 None 💨 4 mph H 98%30.00 inHg

11:00 PM

Light thunderstorms

71° 💧 0.044 in 💨 3 mph H 100%30.00 inHg

Sunday

12:00 AM

Light thunderstorms

71° 💧 0.063 in 💨 4 mph H 98%30.00 inHg

1:00 AM

Mostly cloudy night

71° 💧 0.002 in 💨 4 mph H 98%29.97 inHg

2:00 AM

Mostly cloudy night

71° 💧 0.001 in 💨 2 mph H 98%29.97 inHg

3:00 AM

Overcast night

71° 💧 None 💨 3 mph H 99%29.94 inHg

4:00 AM

Overcast night

71° 💧 None 💨 4 mph H 99%29.94 inHg

5:00 AM

Overcast night

72° 💧 None 💨 4 mph H 99%29.94 inHg

6:00 AM

Mist at night

72° 💧 0.000 in 💨 4 mph H 99%29.94 inHg

7:00 AM

Mist

72° 💧 0.000 in 💨 4 mph H 99%29.94 inHg

8:00 AM

Overcast

73° 💧 0.000 in 💨 4 mph H 97%29.97 inHg

5:00 PM

Mostly sunny

86° 💧 None 💨 5 mph H 58%29.91 inHg

8:00 PM

Clear night

78° 💧 None 💨 2 mph H 77%29.94 inHg

11:00 PM

Clear night

74° 💧 None 💨 4 mph H 87%29.97 inHg

Monday

2:00 AM

Overcast night

72° 💧 None 💨 5 mph H 83%29.97 inHg

5:00 AM

Mostly clear night

71° 💧 None 💨 5 mph H 86%29.97 inHg

8:00 AM

Mostly sunny

73° 💧 None 💨 6 mph H 83%30.06 inHg

11:00 AM

Mostly cloudy

77° 💧 None 💨 7 mph H 72%30.09 inHg

2:00 PM

Partly cloudy

77° 💧 None 💨 8 mph H 68%30.09 inHg

5:00 PM

Sunny

77° 💧 None 💨 8 mph H 59%30.09 inHg

8:00 PM

Clear night

71° 💧 None 💨 2 mph H 76%30.15 inHg

11:00 PM

Mostly clear night

68° 💧 None 💨 7 mph H 70%30.21 inHg

Tuesday

2:00 AM

Clear night

65° 💧 None 💨 7 mph H 75%30.24 inHg

5:00 AM

Partly cloudy night

62° 💧 None 💨 7 mph H 79%30.27 inHg

8:00 AM

Sunny

63° 💧 None 💨 6 mph H 81%30.33 inHg

11:00 AM

Mostly sunny

74° 💧 None 💨 5 mph H 61%30.36 inHg

2:00 PM

Mostly sunny

79° 💧 None 💨 4 mph H 47%30.33 inHg

5:00 PM

Mostly sunny

79° 💧 None 💨 5 mph H 48%30.27 inHg

8:00 PM

Clear night

70° 💧 None 💨 6 mph H 64%30.30 inHg

11:00 PM

Mostly cloudy night

65° 💧 None 💨 6 mph H 75%30.33 inHg

Wednesday

2:00 AM

Mostly clear night

64° 💧 None 💨 5 mph H 93%30.33 inHg

5:00 AM

Clear night

62° 💧 None 💨 3 mph H 96%30.33 inHg

8:00 AM

Sunny

64° 💧 None 💨 3 mph H 91%30.36 inHg

11:00 AM

Partly cloudy

75° 💧 None 💨 2 mph H 63%30.39 inHg

2:00 PM

Sunny

80° 💧 None 💨 2 mph H 51%30.33 inHg

8:00 PM

Clear night

85° 💧 None 💨 6 mph H 58%30.27 inHg

Thursday

2:00 AM

Clear night

77° 💧 None 💨 5 mph H 78%30.21 inHg

8:00 AM

Sunny

69° 💧 None 💨 6 mph H 86%30.27 inHg

2:00 PM

Sunny

69° 💧 None 💨 5 mph H 78%30.27 inHg

8:00 PM

Clear night

88° 💧 None 💨 6 mph H 48%30.21 inHg

Friday

2:00 AM

Clear night

78° 💧 None 💨 8 mph H 55%30.15 inHg

8:00 AM

Sunny

71° 💧 None 💨 7 mph H 67%30.09 inHg

2:00 PM

Sunny

71° 💧 None 💨 5 mph H 68%30.06 inHg

8:00 PM

Light rain

88° 💧 None 💨 8 mph H 55%30.00 inHg

Saturday

2:00 AM

Partly cloudy night

78° 💧 None 💨 5 mph H 84%30.00 inHg

8:00 AM

Partly cloudy

71° 💧 None 💨 7 mph H 70%30.03 inHg

2:00 PM

Overcast

66° 💧 None 💨 6 mph H 68%30.06 inHg

8:00 PM

Partly cloudy night

76° 💧 None 💨 2 mph H 49%30.00 inHg

Sunday

2:00 AM

Overcast night

74° 💧 None 💨 5 mph H 62%29.91 inHg

8:00 AM

Heavy rain

70° 💧 None 💨 9 mph H 94%29.83 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 9 mph H 95%29.74 inHg

8:00 PM

Light rain

83° 💧 None 💨 11 mph H 69%29.68 inHg

Monday

2:00 AM

Moderate rain

66° 💧 None 💨 11 mph H 96%29.80 inHg

8:00 AM

Mostly sunny

63° 💧 None 💨 11 mph H 75%29.88 inHg

2:00 PM

Partly cloudy

60° 💧 None 💨 10 mph H 76%30.03 inHg

8:00 PM

Clear night

71° 💧 None 💨 12 mph H 51%30.09 inHg

Tuesday

2:00 AM

Clear night

64° 💧 None 💨 8 mph H 54%30.18 inHg

8:00 AM

Sunny

55° 💧 None 💨 10 mph H 62%30.27 inHg

2:00 PM

Sunny

52° 💧 None 💨 9 mph H 69%30.39 inHg

8:00 PM

Mostly clear night

63° 💧 None 💨 10 mph H 40%30.39 inHg

Wednesday

2:00 AM

Partly cloudy night

57° 💧 None 💨 6 mph H 57%30.42 inHg

8:00 AM

Partly cloudy

52° 💧 None 💨 9 mph H 69%30.45 inHg

2:00 PM

Sunny

51° 💧 None 💨 10 mph H 65%30.50 inHg

8:00 PM

Overcast night

64° 💧 None 💨 14 mph H 52%30.47 inHg

Thursday

2:00 AM

Overcast night

60° 💧 None 💨 10 mph H 60%30.47 inHg

8:00 AM

Overcast

56° 💧 None 💨 10 mph H 68%30.47 inHg

2:00 PM

Overcast

54° 💧 None 💨 12 mph H 69%30.47 inHg

8:00 PM

Overcast night

62° 💧 None 💨 17 mph H 62%30.42 inHg

Friday

2:00 AM

Light rain

59° 💧 None 💨 14 mph H 68%30.36 inHg

8:00 AM

Moderate rain

53° 💧 None 💨 16 mph H 96%30.24 inHg

2:00 PM

Heavy rain

53° 💧 None 💨 17 mph H 96%30.15 inHg

In Merrifield 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 Merrifield

Saturday, Sep 12Sat Sep 12

Light thunderstorms 82°/70° 💧 None 💨 8 mph

Sunday, Sep 13Sun Sep 13

Light thunderstorms 86°/71° 💧 0.481 in 💨 5 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 78°/71° 💧 0.058 in 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 79°/62° 💧 None 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 80°/62° 💧 0.001 in 💨 6 mph

Thursday, Sep 17Thu Sep 17

Sunny 85°/69° 💧 0.238 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Sunny 88°/71° 💧 None 💨 8 mph

Saturday, Sep 19Sat Sep 19

Light rain 88°/66° 💧 0.093 in 💨 8 mph

Sunday, Sep 20Sun Sep 20

Heavy rain 76°/70° 💧 0.076 in 💨 9 mph

Monday, Sep 21Mon Sep 21

Moderate rain 83°/60° 💧 0.770 in 💨 11 mph

Tuesday, Sep 22Tue Sep 22

Sunny 71°/52° 💧 None 💨 12 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 63°/51° 💧 None 💨 10 mph

Thursday, Sep 24Thu Sep 24

Overcast 64°/54° 💧 None 💨 14 mph

Friday, Sep 25Fri Sep 25

Heavy rain 62°/53° 💧 1.131 in 💨 17 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Merrifield

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Merrifield

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 PM

PM2.5 Fine particles Good 5,4µg/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 6,8µg/m³

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

O₃ Ozone Good 10,2µg/m³

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

NO₂ Nitrogen dioxide Good 5,2µg/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 Merrifield

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 6,6High 😊Good

Tomorrow UV 3,4Moderate 😐Moderate

Saturday UV 4,5Moderate 🙂Fair

Sunday UV 6,3High 🙂Fair

Monday UV 6,2High 🙂Fair

Tuesday UV 7,0High —Unavailable

Wednesday 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.

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 Merrifield

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MERRIFIELD, VIRGINIA

Tonight's Stargazing & Shooting Stars

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

78/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:56 PM–5:16 AM

☁ Cloud cover 28% 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 78° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min72%

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

Explore current conditions and forecasts for other locations.

Forecast data for Merrifield were last refreshed today at 9:47 PM. The current forecast period extends through 12/09/2026 at 7:00 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.