Monthly outlook for Florham Park, NJ: average high 83.4°, average low 66.4°. That is 0.8° above the climate normal for August. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 11 August (93.3°), the coolest 22 August (59°).
83.4°/66.4°
Average high / low
+0.8°
Above normal
5 / 6
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
85.9°
82.8°
+1.8°
18 August – 27 August
79.2°
80.9°
-0.9°
28 August – 6 September
at normal
79.8°
—
August records over 66 years
100.4°2 August 2006All-time high
49.3°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Vauxhall (7 mi).
Sun, 0991° / 73°0.02
91 °
Florham Park, Sunday, 9 August
Light rain. High 91°, low 73°.
Pressure29.97 inHg
Wind7.6 mph NW
Humidity40%
Visibility6.2 mi
Dew point63°
Mon, 1091° / 73°0
91 °
Florham Park, Monday, 10 August
Clear. High 91°, low 73°.
Pressure29.97 inHg
Wind7.6 mph W
Humidity36%
Visibility6.2 mi
Dew point60°
Tue, 1193° / 74°0
93 °
Florham Park, Tuesday, 11 August
Overcast. High 93°, low 74°.
Pressure29.88 inHg
Wind8.3 mph NW
Humidity36%
Visibility6.2 mi
Dew point58°
Wed, 1283° / 72°0.08
83 °
Florham Park, Wednesday, 12 August
Light rain. High 83°, low 72°.
Pressure29.71 inHg
Wind8 mph W
Humidity60%
Visibility6.2 mi
Dew point66°
Thu, 1386° / 67°0.06
86 °
Florham Park, Thursday, 13 August
Light rain. High 86°, low 67°.
Pressure29.77 inHg
Wind12.3 mph NW
Humidity32%
Visibility—
Dew point51°
Fri, 1480° / 62°0
80 °
Florham Park, Friday, 14 August
Clear. High 80°, low 62°.
Pressure30.00 inHg
Wind9.2 mph W
Humidity29%
Visibility—
Dew point42°
Sat, 1582° / 63°0
82 °
Florham Park, Saturday, 15 August
Clear. High 82°, low 63°.
Pressure30.09 inHg
Wind11.2 mph NW
Humidity30%
Visibility—
Dew point45°
Sun, 1683° / 61°0
83 °
Florham Park, Sunday, 16 August
Partly cloudy. High 83°, low 61°.
Pressure30.15 inHg
Wind6.3 mph N
Humidity24%
Visibility—
Dew point40°
Mon, 1784° / 63°0.07
84 °
Florham Park, Monday, 17 August
Light rain. High 84°, low 63°.
Pressure30.09 inHg
Wind8.1 mph S
Humidity38%
Visibility—
Dew point53°
Tue, 1874° / 66°0.17
74 °
Florham Park, Tuesday, 18 August
Rain. High 74°, low 66°.
Pressure30.09 inHg
Wind5.1 mph S
Humidity70%
Visibility—
Dew point60°
Wed, 1979° / 68°0
79 °
Florham Park, Wednesday, 19 August
Light rain. High 79°, low 68°.
Pressure29.94 inHg
Wind7.8 mph S
Humidity76%
Visibility—
Dew point62°
Thu, 2082° / 66°1.06
82 °
Florham Park, Thursday, 20 August
Heavy rain. High 82°, low 66°.
Pressure29.62 inHg
Wind11.7 mph W
Humidity40%
Visibility—
Dew point54°
Fri, 2179° / 64°0
79 °
Florham Park, Friday, 21 August
Clear. High 79°, low 64°.
Pressure29.83 inHg
Wind11.8 mph NW
Humidity33%
Visibility—
Dew point46°
Sat, 2281° / 59°0
81 °
Florham Park, Saturday, 22 August
Clear. High 81°, low 59°.
Pressure30.03 inHg
Wind6.7 mph NW
Humidity23%
Visibility—
Dew point37°
Sun, 2381° / 62°0.01
81 °
Florham Park, Sunday, 23 August
Light rain. High 81°, low 62°.
Pressure30.00 inHg
Wind8.7 mph S
Humidity56%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.07
81 °
Florham Park, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.07 in
Chance of precipitation23%
Record high93° (1998)
Record low53° (1971)
Tue, 2582° / 65°0.07
82 °
Florham Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high96° (1968)
Record low54° (1971)
Wed, 2682° / 65°0.09
82 °
Florham Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation25%
Record high92° (1993)
Record low55° (1963)
Thu, 2782° / 66°0.16
82 °
Florham Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.16 in
Chance of precipitation33%
Record high93° (2020)
Record low57° (1969)
Fri, 2881° / 67°0.22
81 °
Florham Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0.22 in
Chance of precipitation38%
Record high95° (1973)
Record low56° (2025)
Sat, 2981° / 66°0.15
81 °
Florham Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.15 in
Chance of precipitation35%
Record high93° (2018)
Record low50° (1982)
Sun, 3081° / 65°0.07
81 °
Florham Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high94° (1973)
Record low49° (1986)
Mon, 3180° / 65°0.06
80 °
Florham Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.06 in
Chance of precipitation17%
Record high94° (2010)
Record low51° (1965)
Tue, 0179° / 64°0.13
79 °
Florham Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.13 in
Chance of precipitation32%
Record high94° (2010)
Record low53° (2017)
Wed, 0279° / 63°0.17
79 °
Florham Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.17 in
Chance of precipitation38%
Record high96° (1980)
Record low51° (2017)
Thu, 0380° / 64°0.13
80 °
Florham Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation37%
Record high92° (1993)
Record low50° (1967)
Fri, 0480° / 64°0.11
80 °
Florham Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation30%
Record high92° (2023)
Record low53° (1997)
Sat, 0579° / 64°0.06
79 °
Florham Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.06 in
Chance of precipitation25%
Record high96° (2023)
Record low54° (1997)
Sun, 0678° / 63°0.2
78 °
Florham Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.2 in
Chance of precipitation28%
Record high95° (2023)
Record low52° (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 Florham 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 Florham 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.