As of 15:31 EDT

Weather in Plainsboro, NJ

66°Current weather

Plainsboro, Monday, 19 October, 15:31

Clear. Feels like 64°. High 66°, low 37°.

Pressure30.30 inHg
Wind1 mph NE
Humidity43%
Visibility6.2 mi
Dew point42°

Monthly outlook for Plainsboro, NJ: average high 61.2°, average low 43.4°. That is 0° below the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 20 October (68.4°), the coolest 29 October (34.7°).

61.2°/43.4°
Average high / low
−0°
Below normal
4 / 4
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October62.9°62.1°+0.5°
29 October – 7 November58.3°58.9°-0.3°
8 November – 17 Novemberat normal54.1°—

October records over 66 years

92.1°2 October 2019All-time high
26.6°24 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Princeton Meadows (1 mi).

Tue, 2068° / 42°0Clear
68 °Clear

Plainsboro, Tuesday, 20 October

Clear. High 68°, low 42°.

Pressure30.27 inHg
Wind10.8 mph NE
Humidity52%
Visibility6.2 mi
Dew point45°
Wed, 2159° / 42°0Clear
59 °Clear

Plainsboro, Wednesday, 21 October

Clear. High 59°, low 42°.

Pressure30.27 inHg
Wind9 mph NE
Humidity55%
Visibility6.2 mi
Dew point39°
Thu, 2266° / 40°0Clear
66 °Clear

Plainsboro, Thursday, 22 October

Clear. High 66°, low 40°.

Pressure30.03 inHg
Wind8.3 mph N
Humidity52%
Visibility6.2 mi
Dew point42°
Fri, 2354° / 41°0Clear
54 °Clear

Plainsboro, Friday, 23 October

Clear. High 54°, low 41°.

Pressure30.24 inHg
Wind11.4 mph N
Humidity49%
Visibility6.2 mi
Dew point30°
Sat, 2457° / 38°0Clear
57 °Clear

Plainsboro, Saturday, 24 October

Clear. High 57°, low 38°.

Pressure30.47 inHg
Wind7.8 mph N
Humidity52%
Visibility—
Dew point31°
Sun, 2561° / 41°0Clear
61 °Clear

Plainsboro, Sunday, 25 October

Clear. High 61°, low 41°.

Pressure30.53 inHg
Wind6.3 mph SW
Humidity59%
Visibility—
Dew point39°
Mon, 2665° / 46°0Overcast
65 °Overcast

Plainsboro, Monday, 26 October

Overcast. High 65°, low 46°.

Pressure30.36 inHg
Wind8 mph SW
Humidity59%
Visibility—
Dew point43°
Tue, 2768° / 54°0Overcast
68 °Overcast

Plainsboro, Tuesday, 27 October

Overcast. High 68°, low 54°.

Pressure30.27 inHg
Wind8.4 mph S
Humidity54%
Visibility—
Dew point46°
Wed, 2866° / 42°0.28Rain
66 °Rain

Plainsboro, Wednesday, 28 October

Rain. High 66°, low 42°.

Pressure29.85 inHg
Wind15.7 mph SW
Humidity73%
Visibility—
Dew point56°
Thu, 2948° / 35°0Clear
48 °Clear

Plainsboro, Thursday, 29 October

Clear. High 48°, low 35°.

Pressure30.03 inHg
Wind17.8 mph W
Humidity46%
Visibility—
Dew point23°
Fri, 3054° / 37°0Mostly clear
54 °Mostly clear

Plainsboro, Friday, 30 October

Mostly clear. High 54°, low 37°.

Pressure30.21 inHg
Wind12.4 mph W
Humidity38%
Visibility—
Dew point22°
Sat, 3159° / 43°0Overcast
59 °Overcast

Plainsboro, Saturday, 31 October

Overcast. High 59°, low 43°.

Pressure30.27 inHg
Wind7.5 mph SW
Humidity43%
Visibility—
Dew point31°
Sun, 0167° / 51°0.11Light rain
67 °Light rain

Plainsboro, Sunday, 1 November

Light rain. High 67°, low 51°.

Pressure30.24 inHg
Wind9.1 mph SE
Humidity70%
Visibility—
Dew point50°
Mon, 0266° / 56°0.27Light rain
66 °Light rain

Plainsboro, Monday, 2 November

Light rain. High 66°, low 56°.

Pressure29.83 inHg
Wind15.3 mph E
Humidity82%
Visibility—
Dew point56°
Tue, 0357° / 50°1.07Heavy rain
57 °Heavy rain

Plainsboro, Tuesday, 3 November

Heavy rain. High 57°, low 50°.

Pressure29.35 inHg
Wind19.1 mph NE
Humidity91%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0459° / 43°0.07Climate normal
59 °Climate normal

Plainsboro, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.07 in
Chance of precipitation13%
Record high75° (1974)
Record low30° (2006)
Thu, 0558° / 43°0.11Climate normal
58 °Climate normal

Plainsboro, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.11 in
Chance of precipitation30%
Record high77° (2022)
Record low30° (1983)
Fri, 0657° / 42°0.08Climate normal
57 °Climate normal

Plainsboro, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation27%
Record high79° (2024)
Record low28° (1967)
Sat, 0756° / 41°0.1Climate normal
56 °Climate normal

Plainsboro, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.1 in
Chance of precipitation25%
Record high76° (2022)
Record low27° (1962)
Sun, 0856° / 40°0.13Climate normal
56 °Climate normal

Plainsboro, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.13 in
Chance of precipitation25%
Record high74° (2020)
Record low27° (1960)
Mon, 0956° / 40°0.08Climate normal
56 °Climate normal

Plainsboro, Monday, 9 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.08 in
Chance of precipitation28%
Record high74° (1975)
Record low22° (2019)
Tue, 1057° / 41°0.15Climate normal
57 °Climate normal

Plainsboro, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high57°
Average low41°
Average precipitation0.15 in
Chance of precipitation37%
Record high73° (2020)
Record low26° (2017)
Wed, 1155° / 41°0.11Climate normal
55 °Climate normal

Plainsboro, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.11 in
Chance of precipitation32%
Record high72° (2020)
Record low22° (2017)
Thu, 1254° / 39°0.17Climate normal
54 °Climate normal

Plainsboro, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.17 in
Chance of precipitation38%
Record high69° (1964)
Record low26° (2017)
Fri, 1352° / 38°0.19Climate normal
52 °Climate normal

Plainsboro, Friday, 13 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.19 in
Chance of precipitation35%
Record high71° (1964)
Record low22° (2019)
Sat, 1453° / 38°0.09Climate normal
53 °Climate normal

Plainsboro, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation22%
Record high71° (1993)
Record low23° (2019)
Sun, 1554° / 38°0.1Climate normal
54 °Climate normal

Plainsboro, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.1 in
Chance of precipitation32%
Record high75° (1993)
Record low24° (1996)
Mon, 1653° / 38°0.11Climate normal
53 °Climate normal

Plainsboro, Monday, 16 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation35%
Record high73° (2005)
Record low22° (1967)
Tue, 1752° / 37°0.1Climate normal
52 °Climate normal

Plainsboro, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high68° (1987)
Record low25° (1967)

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 Plainsboro, 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 Plainsboro, 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.