What is the weather in Mercerville right now?

Current weather in Mercerville is broken clouds.

Where can I find the hourly weather forecast for Mercerville?

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

Is the weather forecast for Mercerville updated regularly?

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

Now · 6:25 AM

Mercerville Weather & Hourly Forecast

United States · New Jersey · 08619

59°F

Mostly cloudy

Feels like: 59°F

💧 Humidity 91% 🌡 Pressure 30.18 inHg 💨 Wind 4 mph 👁 Visibility 6.2 mi ☁ Clouds 70% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:24 AM 🌇 Sunset 7:34 PM

Hourly Forecast for Mercerville

Today

7:00 AM

Mostly cloudy

59° 💧 None 💨 4 mph H 91%30.18 inHg

10:00 AM

Overcast

67° 💧 None 💨 5 mph H 73%30.18 inHg

1:00 PM

Mostly cloudy

80° 💧 0.02 in 💨 10 mph H 55%30.12 inHg

4:00 PM

Light rain

83° 💧 0.05 in 💨 11 mph H 55%30.06 inHg

7:00 PM

Light rain

75° 💧 0.04 in 💨 6 mph H 81%30.06 inHg

10:00 PM

Light rain

70° 💧 0.04 in 💨 1 mph H 90%30.09 inHg

Tomorrow

1:00 AM

Overcast night

69° 💧 None 💨 7 mph H 91%30.12 inHg

4:00 AM

Overcast night

65° 💧 None 💨 4 mph H 87%30.09 inHg

7:00 AM

Overcast

66° 💧 None 💨 4 mph H 84%30.09 inHg

10:00 AM

Overcast

76° 💧 None 💨 4 mph H 60%30.12 inHg

1:00 PM

Mostly cloudy

82° 💧 None 💨 2 mph H 52%30.06 inHg

4:00 PM

Overcast

81° 💧 None 💨 6 mph H 57%30.06 inHg

7:00 PM

Overcast

73° 💧 None 💨 4 mph H 74%30.06 inHg

10:00 PM

Overcast night

74° 💧 None 💨 4 mph H 77%30.06 inHg

Tuesday

1:00 AM

Overcast night

73° 💧 None 💨 4 mph H 72%30.03 inHg

4:00 AM

Overcast night

71° 💧 None 💨 3 mph H 78%30.03 inHg

Today

7:00 AM

Mostly cloudy

59° 💧 None 💨 4 mph H 91%30.18 inHg

8:00 AM

Mostly cloudy

60° 💧 None 💨 4 mph H 85%30.18 inHg

9:00 AM

Overcast

63° 💧 None 💨 4 mph H 79%30.21 inHg

10:00 AM

Overcast

67° 💧 None 💨 5 mph H 73%30.18 inHg

11:00 AM

Overcast

74° 💧 None 💨 9 mph H 65%30.18 inHg

12:00 PM

Overcast

78° 💧 None 💨 9 mph H 65%30.15 inHg

1:00 PM

Mostly cloudy

80° 💧 None 💨 10 mph H 55%30.12 inHg

2:00 PM

Light rain

81° 💧 0.00 in 💨 11 mph H 57%30.12 inHg

3:00 PM

Light rain

82° 💧 0.02 in 💨 12 mph H 57%30.09 inHg

4:00 PM

Light rain

83° 💧 0.01 in 💨 11 mph H 55%30.06 inHg

5:00 PM

Light rain

82° 💧 0.02 in 💨 11 mph H 62%30.06 inHg

6:00 PM

Light rain

80° 💧 0.01 in 💨 9 mph H 65%30.06 inHg

7:00 PM

Light rain

75° 💧 0.02 in 💨 6 mph H 81%30.06 inHg

8:00 PM

Light rain

73° 💧 0.01 in 💨 3 mph H 86%30.06 inHg

9:00 PM

Light rain

71° 💧 0.01 in 💨 4 mph H 87%30.09 inHg

10:00 PM

Light rain

70° 💧 0.02 in 💨 1 mph H 90%30.09 inHg

11:00 PM

Light rain

69° 💧 0.01 in 💨 1 mph H 92%30.12 inHg

Tomorrow

12:00 AM

Light rain

69° 💧 0.01 in 💨 5 mph H 94%30.12 inHg

1:00 AM

Overcast night

69° 💧 None 💨 7 mph H 91%30.12 inHg

2:00 AM

Overcast night

68° 💧 None 💨 5 mph H 88%30.12 inHg

3:00 AM

Overcast night

66° 💧 None 💨 5 mph H 88%30.09 inHg

4:00 AM

Overcast night

65° 💧 None 💨 4 mph H 87%30.09 inHg

5:00 AM

Overcast night

65° 💧 None 💨 4 mph H 85%30.09 inHg

6:00 AM

Overcast night

64° 💧 None 💨 3 mph H 84%30.09 inHg

7:00 AM

Overcast

66° 💧 None 💨 4 mph H 84%30.09 inHg

8:00 AM

Overcast

69° 💧 None 💨 4 mph H 80%30.12 inHg

9:00 AM

Mostly cloudy

73° 💧 None 💨 3 mph H 70%30.12 inHg

10:00 AM

Overcast

76° 💧 None 💨 4 mph H 60%30.12 inHg

11:00 AM

Mostly cloudy

80° 💧 None 💨 4 mph H 55%30.09 inHg

12:00 PM

Mostly cloudy

82° 💧 None 💨 2 mph H 50%30.09 inHg

1:00 PM

Mostly cloudy

82° 💧 None 💨 2 mph H 52%30.06 inHg

2:00 PM

Mostly cloudy

82° 💧 None 💨 3 mph H 46%30.06 inHg

3:00 PM

Overcast

82° 💧 None 💨 5 mph H 50%30.06 inHg

4:00 PM

Overcast

81° 💧 None 💨 6 mph H 57%30.06 inHg

5:00 PM

Overcast

79° 💧 None 💨 4 mph H 64%30.06 inHg

6:00 PM

Overcast

76° 💧 None 💨 5 mph H 68%30.06 inHg

7:00 PM

Overcast

73° 💧 None 💨 4 mph H 74%30.06 inHg

8:00 PM

Overcast night

72° 💧 None 💨 3 mph H 75%30.06 inHg

9:00 PM

Overcast night

74° 💧 None 💨 4 mph H 76%30.06 inHg

10:00 PM

Overcast night

74° 💧 None 💨 4 mph H 77%30.06 inHg

11:00 PM

Overcast night

73° 💧 None 💨 3 mph H 75%30.06 inHg

Tuesday

12:00 AM

Overcast night

73° 💧 None 💨 3 mph H 73%30.03 inHg

1:00 AM

Overcast night

73° 💧 None 💨 4 mph H 72%30.03 inHg

2:00 AM

Overcast night

73° 💧 None 💨 3 mph H 73%30.03 inHg

3:00 AM

Overcast night

73° 💧 None 💨 3 mph H 72%30.03 inHg

4:00 AM

Overcast night

71° 💧 None 💨 3 mph H 78%30.03 inHg

5:00 AM

Overcast night

70° 💧 None 💨 4 mph H 79%30.03 inHg

6:00 AM

Mostly cloudy night

69° 💧 None 💨 3 mph H 81%30.03 inHg

7:00 AM

Overcast

71° 💧 None 💨 3 mph H 77%30.03 inHg

8:00 AM

Mostly cloudy

74° 💧 None 💨 4 mph H 69%30.03 inHg

9:00 AM

Overcast

77° 💧 None 💨 5 mph H 64%30.03 inHg

10:00 AM

Overcast

79° 💧 None 💨 6 mph H 62%30.03 inHg

11:00 AM

Overcast

83° 💧 None 💨 6 mph H 58%30.03 inHg

12:00 PM

Overcast

86° 💧 None 💨 7 mph H 53%30.03 inHg

1:00 PM

Overcast

88° 💧 None 💨 6 mph H 49%30.00 inHg

2:00 PM

Overcast

91° 💧 None 💨 6 mph H 46%29.97 inHg

3:00 PM

Overcast

91° 💧 None 💨 9 mph H 45%29.97 inHg

4:00 PM

Overcast

85° 💧 None 💨 7 mph H 58%29.97 inHg

5:00 PM

Overcast

86° 💧 None 💨 5 mph H 57%29.94 inHg

6:00 PM

Overcast

87° 💧 None 💨 4 mph H 57%29.94 inHg

7:00 PM

Light rain

82° 💧 0.01 in 💨 4 mph H 68%29.94 inHg

8:00 PM

Light rain

77° 💧 0.04 in 💨 3 mph H 84%29.97 inHg

9:00 PM

Moderate rain

74° 💧 0.04 in 💨 5 mph H 92%30.00 inHg

10:00 PM

Light rain

73° 💧 0.03 in 💨 4 mph H 94%30.00 inHg

11:00 PM

Light rain

73° 💧 0.01 in 💨 4 mph H 94%30.00 inHg

Wednesday

12:00 AM

Light rain

73° 💧 0.01 in 💨 3 mph H 96%30.00 inHg

1:00 AM

Light rain

73° 💧 0.01 in 💨 3 mph H 95%30.00 inHg

2:00 AM

Light rain

72° 💧 0.01 in 💨 4 mph H 97%30.00 inHg

3:00 AM

Overcast night

72° 💧 None 💨 3 mph H 97%30.00 inHg

4:00 AM

Light rain

72° 💧 0.02 in 💨 2 mph H 98%30.00 inHg

5:00 AM

Overcast night

72° 💧 None 💨 3 mph H 98%29.97 inHg

6:00 AM

Overcast night

72° 💧 None 💨 0 mph H 98%30.00 inHg

7:00 AM

Overcast

72° 💧 None 💨 2 mph H 97%30.00 inHg

8:00 AM

Overcast

74° 💧 None 💨 3 mph H 95%30.00 inHg

9:00 AM

Light rain

73° 💧 0.01 in 💨 3 mph H 96%30.03 inHg

10:00 AM

Light rain

74° 💧 0.01 in 💨 4 mph H 96%30.03 inHg

11:00 AM

Overcast

75° 💧 None 💨 1 mph H 93%30.03 inHg

12:00 PM

Overcast

80° 💧 None 💨 5 mph H 78%30.00 inHg

1:00 PM

Overcast

85° 💧 None 💨 6 mph H 65%29.97 inHg

2:00 PM

Overcast

90° 💧 None 💨 7 mph H 54%29.97 inHg

3:00 PM

Mostly sunny

92° 💧 None 💨 7 mph H 50%29.94 inHg

4:00 PM

Mostly sunny

93° 💧 None 💨 7 mph H 49%29.94 inHg

5:00 PM

Mostly sunny

93° 💧 None 💨 5 mph H 49%29.91 inHg

6:00 PM

Mostly sunny

91° 💧 None 💨 6 mph H 54%29.94 inHg

7:00 PM

Light rain

80° 💧 0.02 in 💨 13 mph H 81%29.94 inHg

8:00 PM

Moderate rain

75° 💧 0.05 in 💨 10 mph H 91%29.94 inHg

9:00 PM

Heavy rain

71° 💧 0.54 in 💨 7 mph H 98%29.97 inHg

10:00 PM

Heavy rain

72° 💧 0.21 in 💨 2 mph H 96%30.03 inHg

11:00 PM

Light rain

71° 💧 0.04 in 💨 4 mph H 98%30.00 inHg

Thursday

12:00 AM

Light rain

71° 💧 0.02 in 💨 4 mph H 98%30.00 inHg

1:00 AM

Light rain

70° 💧 0.03 in 💨 7 mph H 99%29.97 inHg

2:00 AM

Light rain

70° 💧 0.01 in 💨 3 mph H 98%29.94 inHg

3:00 AM

Light rain

70° 💧 0.01 in 💨 2 mph H 97%29.91 inHg

4:00 AM

Mostly clear night

70° 💧 None 💨 2 mph H 97%29.91 inHg

5:00 AM

Mostly clear night

69° 💧 None 💨 4 mph H 98%29.94 inHg

6:00 AM

Mostly clear night

69° 💧 None 💨 3 mph H 97%29.91 inHg

In Mercerville and, more broadly, across the state of New Jersey: This morning, expect mostly cloudy skies with mild to warm temperatures ranging from the low 60s to the high 70s. Winds will be moderate, coming from the west at around 11 mph, with gusts reaching up to 17 mph. As the day progresses, the clouds will persist, and there is a strong chance of rain with an accumulation of about 0.16 inches. Temperatures are forecasted to reach the low 80s in the afternoon. The wind pattern will remain similar, maintaining a westerly direction at moderate speeds with occasional gusts. Overall, it will be a day marked by cloudy conditions and the possibility of scattered showers, so it’s advisable to carry an umbrella if planning outdoor activities.

15-Day Weather Outlook for Mercerville

TomorrowTomorrow

Moderate rain 86°/65° 💧 0.22 in 💨 6 mph

Tuesday, Sep 1Tue Sep 1

Moderate rain 91°/70° 💧 0.25 in 💨 10 mph

Wednesday, Sep 2Wed Sep 2

Moderate rain 79°/71° 💧 0.84 in 💨 10 mph

Thursday, Sep 3Thu Sep 3

Heavy rain 82°/69° 💧 0.84 in 💨 12 mph

Friday, Sep 4Fri Sep 4

Overcast 84°/69° 💧 None 💨 8 mph

Saturday, Sep 5Sat Sep 5

Partly cloudy 82°/66° 💧 None 💨 6 mph

Sunday, Sep 6Sun Sep 6

Light rain 81°/64° 💧 0.18 in 💨 7 mph

Monday, Sep 7Mon Sep 7

Light rain 82°/62° 💧 0.06 in 💨 12 mph

Tuesday, Sep 8Tue Sep 8

Partly cloudy 77°/55° 💧 None 💨 8 mph

Wednesday, Sep 9Wed Sep 9

Mostly cloudy 87°/63° 💧 None 💨 7 mph

Thursday, Sep 10Thu Sep 10

Light rain 81°/67° 💧 0.06 in 💨 9 mph

Friday, Sep 11Fri Sep 11

Sunny 72°/58° 💧 None 💨 14 mph

Saturday, Sep 12Sat Sep 12

Sunny 66°/51° 💧 None 💨 14 mph

Sunday, Sep 13Sun Sep 13

Light rain 68°/48° 💧 0.00 in 💨 7 mph

Monday, Sep 14Mon Sep 14

Moderate rain 67°/63° 💧 0.53 in 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Mercerville

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Mercerville

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 7:00 AM

PM2.5 Fine particles Good 6,8µg/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 12,1µg/m³

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

O₃ Ozone Good 38,8µg/m³

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

NO₂ Nitrogen dioxide Good 3,4µg/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 Mercerville

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 6,8High 😊Good

Tomorrow UV 6,2High 😐Moderate

Tuesday UV 7,1High 😐Moderate

Wednesday UV 2,4Low 😐Moderate

Thursday UV 8,0Very high 🙂Fair

Friday UV 7,0High —Unavailable

Saturday UV 8,0Very high —Unavailable

Hourly UV index today

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

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.

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 Mercerville

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 4.11 Population: 13,535

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Forecast data for Mercerville were last refreshed today at 6:25 AM. The current forecast period extends through 01/09/2026 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.