As of 06:31 EDT

Weather in Jamesburg, NJ

71°Current weather

Jamesburg, Sunday, 9 August, 06:31

Partly cloudy. Feels like 72°. High 88°, low 71°.

Pressure29.97 inHg
Wind4.5 mph W
Humidity94%
Visibility6.2 mi
Dew point69°

Monthly outlook for Jamesburg, NJ: average high 88.3°, average low 67.2°. That is 3.2° above the climate normal for August. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 23 August (98.6°), the coolest 15 August (56.1°).

88.3°/67.2°
Average high / low
+3.2°
Above normal
5 / 6
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August84.9°83.2°+0.9°
19 August – 28 August94°81.7°+6.8°
29 August – 7 Septemberat normal80.3°

August records over 66 years

101.1°9 August 2001All-time high
47.3°30 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Dayton (4 mi).

Mon, 1089° / 71°0.03Light rain
89 °Light rain

Jamesburg, Monday, 10 August

Light rain. High 89°, low 71°.

Pressure29.97 inHg
Wind8.7 mph W
Humidity35%
Visibility6.2 mi
Dew point61°
Tue, 1190° / 71°0.1Rain
90 °Rain

Jamesburg, Tuesday, 11 August

Rain. High 90°, low 71°.

Pressure29.83 inHg
Wind9.9 mph NW
Humidity46%
Visibility6.2 mi
Dew point63°
Wed, 1285° / 72°0Overcast
85 °Overcast

Jamesburg, Wednesday, 12 August

Overcast. High 85°, low 72°.

Pressure29.71 inHg
Wind10 mph W
Humidity48%
Visibility6.2 mi
Dew point65°
Thu, 1384° / 68°0.09Light rain
84 °Light rain

Jamesburg, Thursday, 13 August

Light rain. High 84°, low 68°.

Pressure29.74 inHg
Wind15.2 mph NW
Humidity43%
Visibility
Dew point56°
Fri, 1479° / 58°0Mostly clear
79 °Mostly clear

Jamesburg, Friday, 14 August

Mostly clear. High 79°, low 58°.

Pressure29.97 inHg
Wind15.5 mph NW
Humidity32%
Visibility
Dew point44°
Sat, 1580° / 56°0Clear
80 °Clear

Jamesburg, Saturday, 15 August

Clear. High 80°, low 56°.

Pressure30.06 inHg
Wind14 mph NW
Humidity28%
Visibility
Dew point41°
Sun, 1682° / 58°0Overcast
82 °Overcast

Jamesburg, Sunday, 16 August

Overcast. High 82°, low 58°.

Pressure30.09 inHg
Wind8.3 mph NW
Humidity23%
Visibility
Dew point38°
Mon, 1784° / 62°0Overcast
84 °Overcast

Jamesburg, Monday, 17 August

Overcast. High 84°, low 62°.

Pressure29.97 inHg
Wind9.6 mph SW
Humidity32%
Visibility
Dew point46°
Tue, 1888° / 63°0Overcast
88 °Overcast

Jamesburg, Tuesday, 18 August

Overcast. High 88°, low 63°.

Pressure30.00 inHg
Wind11 mph SE
Humidity33%
Visibility
Dew point53°
Wed, 1987° / 69°0Overcast
87 °Overcast

Jamesburg, Wednesday, 19 August

Overcast. High 87°, low 69°.

Pressure30.06 inHg
Wind11 mph E
Humidity35%
Visibility
Dew point54°
Thu, 2091° / 67°0Mostly clear
91 °Mostly clear

Jamesburg, Thursday, 20 August

Mostly clear. High 91°, low 67°.

Pressure30.00 inHg
Wind11.9 mph E
Humidity34%
Visibility
Dew point56°
Fri, 2197° / 69°0.07Light rain
97 °Light rain

Jamesburg, Friday, 21 August

Light rain. High 97°, low 69°.

Pressure29.85 inHg
Wind13.3 mph SW
Humidity34%
Visibility
Dew point61°
Sat, 2296° / 72°0.03Light rain
96 °Light rain

Jamesburg, Saturday, 22 August

Light rain. High 96°, low 72°.

Pressure29.85 inHg
Wind11.3 mph NW
Humidity38%
Visibility
Dew point63°
Sun, 2399° / 73°0Clear
99 °Clear

Jamesburg, Sunday, 23 August

Clear. High 99°, low 73°.

Pressure29.91 inHg
Wind8.5 mph SE
Humidity25%
Visibility
Dew point54°
Mon, 2495° / 75°0.16Light rain
95 °Light rain

Jamesburg, Monday, 24 August

Light rain. High 95°, low 75°.

Pressure29.94 inHg
Wind11.1 mph E
Humidity45%
Visibility
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 65°0.07Climate normal
82 °Climate normal

Jamesburg, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high97° (1968)
Record low53° (1971)
Wed, 2682° / 65°0.07Climate normal
82 °Climate normal

Jamesburg, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation25%
Record high93° (1993)
Record low56° (1960)
Thu, 2783° / 66°0.16Climate normal
83 °Climate normal

Jamesburg, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.16 in
Chance of precipitation35%
Record high93° (2020)
Record low57° (2017)
Fri, 2882° / 67°0.22Climate normal
82 °Climate normal

Jamesburg, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°
Average low67°
Average precipitation0.22 in
Chance of precipitation42%
Record high96° (1973)
Record low55° (2025)
Sat, 2981° / 66°0.13Climate normal
81 °Climate normal

Jamesburg, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°
Average low66°
Average precipitation0.13 in
Chance of precipitation30%
Record high94° (2010)
Record low49° (1986)
Sun, 3082° / 65°0.07Climate normal
82 °Climate normal

Jamesburg, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation27%
Record high96° (1973)
Record low47° (1986)
Mon, 3182° / 65°0.07Climate normal
82 °Climate normal

Jamesburg, Monday, 31 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation20%
Record high95° (1973)
Record low51° (1976)
Tue, 0180° / 64°0.12Climate normal
80 °Climate normal

Jamesburg, 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 low54° (2017)
Wed, 0280° / 64°0.15Climate normal
80 °Climate normal

Jamesburg, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.15 in
Chance of precipitation33%
Record high96° (1980)
Record low53° (2017)
Thu, 0380° / 64°0.13Climate normal
80 °Climate normal

Jamesburg, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation35%
Record high92° (1993)
Record low49° (1967)
Fri, 0480° / 64°0.09Climate normal
80 °Climate normal

Jamesburg, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation25%
Record high94° (2023)
Record low53° (1997)
Sat, 0580° / 64°0.06Climate normal
80 °Climate normal

Jamesburg, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation22%
Record high96° (2023)
Record low53° (1997)
Sun, 0679° / 63°0.19Climate normal
79 °Climate normal

Jamesburg, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.19 in
Chance of precipitation33%
Record high96° (2023)
Record low51° (1984)
Mon, 0780° / 63°0.11Climate normal
80 °Climate normal

Jamesburg, Monday, 7 September

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation30%
Record high93° (2023)
Record low49° (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 Jamesburg, 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 Jamesburg, 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.