Monthly outlook for Jamesburg Park, NJ: average high 88.2°, average low 67.6°. That is 3.2° above the climate normal for August. Precipitation is expected on 6 days (about 0.6 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 23 August (98.4°), the coolest 15 August (56.8°).
88.2°/67.6°
Average high / low
+3.2°
Above normal
6 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.9°
83.2°
+0.9°
19 August – 28 August
93.8°
81.7°
+6.7°
29 August – 7 September
at normal
80.3°
—
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° / 72°0.04
89 °
Jamesburg Park, Monday, 10 August
Light rain. High 89°, low 72°.
Pressure29.97 inHg
Wind8.5 mph W
Humidity36%
Visibility6.2 mi
Dew point61°
Tue, 1190° / 71°0.1
90 °
Jamesburg Park, Tuesday, 11 August
Rain. High 90°, low 71°.
Pressure29.83 inHg
Wind9.5 mph NW
Humidity46%
Visibility6.2 mi
Dew point63°
Wed, 1286° / 72°0
86 °
Jamesburg Park, Wednesday, 12 August
Overcast. High 86°, low 72°.
Pressure29.71 inHg
Wind9.4 mph W
Humidity48%
Visibility6.2 mi
Dew point64°
Thu, 1384° / 68°0.08
84 °
Jamesburg Park, Thursday, 13 August
Light rain. High 84°, low 68°.
Pressure29.74 inHg
Wind14.8 mph NW
Humidity44%
Visibility—
Dew point56°
Fri, 1479° / 59°0
79 °
Jamesburg Park, Friday, 14 August
Mostly clear. High 79°, low 59°.
Pressure29.97 inHg
Wind15.1 mph NW
Humidity31%
Visibility—
Dew point43°
Sat, 1580° / 57°0
80 °
Jamesburg Park, Saturday, 15 August
Clear. High 80°, low 57°.
Pressure30.06 inHg
Wind13.8 mph NW
Humidity28%
Visibility—
Dew point41°
Sun, 1682° / 59°0
82 °
Jamesburg Park, Sunday, 16 August
Overcast. High 82°, low 59°.
Pressure30.09 inHg
Wind8 mph NW
Humidity23%
Visibility—
Dew point38°
Mon, 1784° / 63°0
84 °
Jamesburg Park, Monday, 17 August
Overcast. High 84°, low 63°.
Pressure29.97 inHg
Wind8.8 mph SW
Humidity32%
Visibility—
Dew point47°
Tue, 1888° / 63°0
88 °
Jamesburg Park, Tuesday, 18 August
Overcast. High 88°, low 63°.
Pressure30.00 inHg
Wind11.1 mph SE
Humidity34%
Visibility—
Dew point54°
Wed, 1987° / 69°0
87 °
Jamesburg Park, Wednesday, 19 August
Overcast. High 87°, low 69°.
Pressure30.06 inHg
Wind10.6 mph E
Humidity35%
Visibility—
Dew point54°
Thu, 2091° / 68°0
91 °
Jamesburg Park, Thursday, 20 August
Mostly clear. High 91°, low 68°.
Pressure30.00 inHg
Wind11.5 mph E
Humidity34%
Visibility—
Dew point56°
Fri, 2197° / 69°0.07
97 °
Jamesburg Park, Friday, 21 August
Light rain. High 97°, low 69°.
Pressure29.83 inHg
Wind12.6 mph SW
Humidity34%
Visibility—
Dew point61°
Sat, 2296° / 72°0.03
96 °
Jamesburg Park, Saturday, 22 August
Light rain. High 96°, low 72°.
Pressure29.85 inHg
Wind11 mph NW
Humidity39%
Visibility—
Dew point64°
Sun, 2398° / 74°0
98 °
Jamesburg Park, Sunday, 23 August
Clear. High 98°, low 74°.
Pressure29.91 inHg
Wind8.1 mph SE
Humidity25%
Visibility—
Dew point54°
Mon, 2494° / 75°0.16
94 °
Jamesburg Park, Monday, 24 August
Light rain. High 94°, low 75°.
Pressure29.94 inHg
Wind10.9 mph E
Humidity47%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 65°0.07
82 °
Jamesburg Park, 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°0.07
82 °
Jamesburg Park, 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°0.16
83 °
Jamesburg Park, 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°0.22
82 °
Jamesburg Park, 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°0.13
81 °
Jamesburg Park, 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°0.07
82 °
Jamesburg Park, 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°0.07
82 °
Jamesburg Park, 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°0.12
80 °
Jamesburg Park, 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°0.15
80 °
Jamesburg Park, 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°0.13
80 °
Jamesburg Park, 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°0.09
80 °
Jamesburg Park, 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°0.06
80 °
Jamesburg Park, 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°0.19
79 °
Jamesburg Park, 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°0.11
80 °
Jamesburg Park, 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 Park, 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 Park, 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.