Monthly outlook for Port Republic, NJ: average high 84.9°, average low 66.4°. That is 2.2° above the climate normal for August. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 10 August (94.2°), the coolest 22 August (56.4°).
84.9°/66.4°
Average high / low
+2.2°
Above normal
4 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
86°
81.6°
+2.4°
19 August – 28 August
83°
80.3°
+1.5°
29 August – 7 September
at normal
79°
—
August records over 66 years
97.2°3 August 2006All-time high
51.8°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — North Beach Haven (15 mi).
Mon, 1094° / 74°0
94 °
Port Republic, Monday, 10 August
Light rain. High 94°, low 74°.
Pressure29.97 inHg
Wind5.5 mph SW
Humidity43%
Visibility6.2 mi
Dew point67°
Tue, 1193° / 72°0.11
93 °
Port Republic, Tuesday, 11 August
Light rain. High 93°, low 72°.
Pressure29.88 inHg
Wind4.6 mph N
Humidity42%
Visibility6.2 mi
Dew point64°
Wed, 1287° / 71°0
87 °
Port Republic, Wednesday, 12 August
Overcast. High 87°, low 71°.
Pressure29.74 inHg
Wind12.9 mph W
Humidity49%
Visibility6.2 mi
Dew point67°
Thu, 1390° / 70°0.06
90 °
Port Republic, Thursday, 13 August
Light rain. High 90°, low 70°.
Pressure29.77 inHg
Wind13.7 mph W
Humidity35%
Visibility—
Dew point56°
Fri, 1482° / 62°0
82 °
Port Republic, Friday, 14 August
Partly cloudy. High 82°, low 62°.
Pressure30.00 inHg
Wind11.4 mph W
Humidity27%
Visibility—
Dew point42°
Sat, 1583° / 62°0
83 °
Port Republic, Saturday, 15 August
Clear. High 83°, low 62°.
Pressure30.12 inHg
Wind9.7 mph NW
Humidity30%
Visibility—
Dew point46°
Sun, 1684° / 59°0
84 °
Port Republic, Sunday, 16 August
Overcast. High 84°, low 59°.
Pressure30.15 inHg
Wind11.5 mph SE
Humidity25%
Visibility—
Dew point42°
Mon, 1780° / 63°0
80 °
Port Republic, Monday, 17 August
Light rain. High 80°, low 63°.
Pressure30.12 inHg
Wind12.5 mph S
Humidity49%
Visibility—
Dew point58°
Tue, 1877° / 66°0.15
77 °
Port Republic, Tuesday, 18 August
Light rain. High 77°, low 66°.
Pressure30.09 inHg
Wind5.8 mph SE
Humidity66%
Visibility—
Dew point61°
Wed, 1981° / 67°0
81 °
Port Republic, Wednesday, 19 August
Overcast. High 81°, low 67°.
Pressure29.91 inHg
Wind9.9 mph S
Humidity58%
Visibility—
Dew point64°
Thu, 2083° / 69°0.78
83 °
Port Republic, Thursday, 20 August
Rain. High 83°, low 69°.
Pressure29.65 inHg
Wind14.1 mph W
Humidity41%
Visibility—
Dew point55°
Fri, 2180° / 63°0
80 °
Port Republic, Friday, 21 August
Clear. High 80°, low 63°.
Pressure29.83 inHg
Wind12.8 mph NW
Humidity36%
Visibility—
Dew point48°
Sat, 2281° / 56°0
81 °
Port Republic, Saturday, 22 August
Clear. High 81°, low 56°.
Pressure30.06 inHg
Wind5.8 mph NW
Humidity26%
Visibility—
Dew point41°
Sun, 2382° / 62°0
82 °
Port Republic, Sunday, 23 August
Overcast. High 82°, low 62°.
Pressure30.03 inHg
Wind15.1 mph S
Humidity58%
Visibility—
Dew point64°
Mon, 2491° / 72°0
91 °
Port Republic, Monday, 24 August
Clear. High 91°, low 72°.
Pressure29.88 inHg
Wind13.6 mph W
Humidity37%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 67°0.07
81 °
Port Republic, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0.07 in
Chance of precipitation20%
Record high93° (1968)
Record low58° (1971)
Wed, 2681° / 68°0.07
81 °
Port Republic, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.07 in
Chance of precipitation32%
Record high90° (2016)
Record low59° (1977)
Thu, 2781° / 69°0.12
81 °
Port Republic, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low69°
Average precipitation0.12 in
Chance of precipitation32%
Record high91° (2020)
Record low59° (2025)
Fri, 2881° / 70°0.19
81 °
Port Republic, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low70°
Average precipitation0.19 in
Chance of precipitation47%
Record high94° (2024)
Record low56° (2025)
Sat, 2980° / 69°0.14
80 °
Port Republic, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.14 in
Chance of precipitation35%
Record high90° (1973)
Record low52° (1982)
Sun, 3080° / 68°0.06
80 °
Port Republic, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.06 in
Chance of precipitation27%
Record high93° (1973)
Record low52° (1986)
Mon, 3180° / 68°0.06
80 °
Port Republic, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.06 in
Chance of precipitation20%
Record high91° (1973)
Record low54° (1976)
Tue, 0179° / 67°0.11
79 °
Port Republic, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low67°
Average precipitation0.11 in
Chance of precipitation35%
Record high91° (1973)
Record low57° (2017)
Wed, 0278° / 67°0.11
78 °
Port Republic, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low67°
Average precipitation0.11 in
Chance of precipitation27%
Record high91° (1980)
Record low55° (2023)
Thu, 0379° / 67°0.09
79 °
Port Republic, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low67°
Average precipitation0.09 in
Chance of precipitation35%
Record high93° (2023)
Record low52° (1967)
Fri, 0479° / 67°0.11
79 °
Port Republic, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low67°
Average precipitation0.11 in
Chance of precipitation30%
Record high92° (2023)
Record low55° (1997)
Sat, 0578° / 67°0.07
78 °
Port Republic, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low67°
Average precipitation0.07 in
Chance of precipitation18%
Record high91° (2023)
Record low55° (1997)
Sun, 0678° / 67°0.2
78 °
Port Republic, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low67°
Average precipitation0.2 in
Chance of precipitation38%
Record high91° (1985)
Record low56° (1984)
Mon, 0778° / 66°0.07
78 °
Port Republic, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low66°
Average precipitation0.07 in
Chance of precipitation30%
Record high92° (2023)
Record low54° (1963)
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 Port Republic, 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 Port Republic, 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.