As of 16:46 EDT

Weather in Mercerville, NJ

83°Current weather

Mercerville, Saturday, 8 August, 16:46

Overcast. Feels like 87°. High 87°, low 72°.

Pressure29.94 inHg
Wind12.7 mph W
Humidity63%
Visibility6.2 mi
Dew point69°

Monthly outlook for Mercerville, NJ: average high 83.5°, average low 66.4°. That is 0.6° above the climate normal for August. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 6 days and 2.4 inches. The warmest day looks like 11 August (92.5°), the coolest 16 August (56.8°).

83.5°/66.4°
Average high / low
+0.6°
Above normal
5 / 6
Wet days / normal
1.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August85.8°83.3°+1.4°
18 August – 27 August79.8°81.4°-0.9°
28 August – 6 Septemberat normal80.4°

August records over 66 years

100.6°9 August 2001All-time high
46.6°30 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Twin Rivers (11 mi).

Sun, 0991° / 73°0.02Light rain
91 °Light rain

Mercerville, Sunday, 9 August

Light rain. High 91°, low 73°.

Pressure29.97 inHg
Wind7.8 mph W
Humidity41%
Visibility6.2 mi
Dew point64°
Mon, 1089° / 73°0.03Light rain
89 °Light rain

Mercerville, Monday, 10 August

Light rain. High 89°, low 73°.

Pressure30.00 inHg
Wind6.4 mph W
Humidity53%
Visibility6.2 mi
Dew point65°
Tue, 1192° / 72°0.1Rain
92 °Rain

Mercerville, Tuesday, 11 August

Rain. High 92°, low 72°.

Pressure29.88 inHg
Wind6 mph NW
Humidity49%
Visibility6.2 mi
Dew point66°
Wed, 1286° / 72°0.53Rain
86 °Rain

Mercerville, Wednesday, 12 August

Rain. High 86°, low 72°.

Pressure29.77 inHg
Wind8.3 mph W
Humidity58%
Visibility6.2 mi
Dew point66°
Thu, 1389° / 68°0.01Light rain
89 °Light rain

Mercerville, Thursday, 13 August

Light rain. High 89°, low 68°.

Pressure29.74 inHg
Wind13 mph NW
Humidity41%
Visibility
Dew point60°
Fri, 1479° / 64°0Partly cloudy
79 °Partly cloudy

Mercerville, Friday, 14 August

Partly cloudy. High 79°, low 64°.

Pressure29.94 inHg
Wind8.9 mph NW
Humidity32%
Visibility
Dew point45°
Sat, 1579° / 57°0Clear
79 °Clear

Mercerville, Saturday, 15 August

Clear. High 79°, low 57°.

Pressure30.15 inHg
Wind12.5 mph N
Humidity31%
Visibility
Dew point42°
Sun, 1681° / 57°0Clear
81 °Clear

Mercerville, Sunday, 16 August

Clear. High 81°, low 57°.

Pressure30.27 inHg
Wind8.8 mph S
Humidity29%
Visibility
Dew point44°
Mon, 1785° / 63°0Partly cloudy
85 °Partly cloudy

Mercerville, Monday, 17 August

Partly cloudy. High 85°, low 63°.

Pressure30.15 inHg
Wind10.2 mph SW
Humidity34%
Visibility
Dew point52°
Tue, 1879° / 70°0.07Light rain
79 °Light rain

Mercerville, Tuesday, 18 August

Light rain. High 79°, low 70°.

Pressure29.94 inHg
Wind11 mph SW
Humidity67%
Visibility
Dew point65°
Wed, 1987° / 68°0.02Light rain
87 °Light rain

Mercerville, Wednesday, 19 August

Light rain. High 87°, low 68°.

Pressure29.85 inHg
Wind13.8 mph NW
Humidity38%
Visibility
Dew point56°
Thu, 2077° / 64°0Overcast
77 °Overcast

Mercerville, Thursday, 20 August

Overcast. High 77°, low 64°.

Pressure29.97 inHg
Wind7.8 mph SW
Humidity47%
Visibility
Dew point54°
Fri, 2178° / 64°0.57Rain
78 °Rain

Mercerville, Friday, 21 August

Rain. High 78°, low 64°.

Pressure29.88 inHg
Wind10.8 mph S
Humidity66%
Visibility
Dew point65°
Sat, 2284° / 68°0.03Light rain
84 °Light rain

Mercerville, Saturday, 22 August

Light rain. High 84°, low 68°.

Pressure29.74 inHg
Wind7 mph NW
Humidity56%
Visibility
Dew point63°
Sun, 2374° / 59°0Mostly clear
74 °Mostly clear

Mercerville, Sunday, 23 August

Mostly clear. High 74°, low 59°.

Pressure30.00 inHg
Wind15.8 mph NW
Humidity34%
Visibility
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.07Climate normal
81 °Climate normal

Mercerville, Monday, 24 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.07 in
Chance of precipitation22%
Record high93° (1998)
Record low52° (1971)
Tue, 2582° / 64°0.07Climate normal
82 °Climate normal

Mercerville, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.07 in
Chance of precipitation22%
Record high96° (1968)
Record low52° (1971)
Wed, 2682° / 65°0.07Climate normal
82 °Climate normal

Mercerville, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (1993)
Record low54° (1960)
Thu, 2783° / 66°0.15Climate normal
83 °Climate normal

Mercerville, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.15 in
Chance of precipitation37%
Record high92° (2021)
Record low56° (1963)
Fri, 2882° / 67°0.2Climate normal
82 °Climate normal

Mercerville, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°
Average low67°
Average precipitation0.2 in
Chance of precipitation43%
Record high96° (1973)
Record low53° (2025)
Sat, 2981° / 66°0.11Climate normal
81 °Climate normal

Mercerville, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°
Average low66°
Average precipitation0.11 in
Chance of precipitation28%
Record high93° (2010)
Record low48° (1986)
Sun, 3082° / 65°0.08Climate normal
82 °Climate normal

Mercerville, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.08 in
Chance of precipitation28%
Record high95° (1973)
Record low47° (1986)
Mon, 3181° / 65°0.09Climate normal
81 °Climate normal

Mercerville, Monday, 31 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.09 in
Chance of precipitation20%
Record high95° (1973)
Record low49° (1976)
Tue, 0180° / 64°0.12Climate normal
80 °Climate normal

Mercerville, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.12 in
Chance of precipitation33%
Record high94° (2010)
Record low55° (2017)
Wed, 0280° / 63°0.13Climate normal
80 °Climate normal

Mercerville, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.13 in
Chance of precipitation35%
Record high96° (1980)
Record low52° (1970)
Thu, 0380° / 64°0.1Climate normal
80 °Climate normal

Mercerville, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.1 in
Chance of precipitation32%
Record high92° (1993)
Record low48° (1967)
Fri, 0480° / 64°0.08Climate normal
80 °Climate normal

Mercerville, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation32%
Record high92° (2008)
Record low51° (2024)
Sat, 0580° / 64°0.07Climate normal
80 °Climate normal

Mercerville, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (2023)
Record low52° (1997)
Sun, 0679° / 63°0.18Climate normal
79 °Climate normal

Mercerville, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.18 in
Chance of precipitation37%
Record high94° (2023)
Record low51° (1984)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Mercerville, NJ are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Mercerville, NJ since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.