Monthly outlook for Union City, NJ: average high 84.1°, average low 70.7°. That is 1.6° above the climate normal for August. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 11 August (95.1°), the coolest 22 August (65.2°).
84.1°/70.7°
Average high / low
+1.6°
Above normal
5 / 6
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85.3°
82.2°
+1.7°
19 August – 28 August
82.3°
80.5°
+1°
29 August – 7 September
at normal
79.1°
—
August records over 66 years
99.9°9 August 2001All-time high
50.2°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Weehawken (1 mi).
Mon, 1087° / 72°0
87 °
Union City, Monday, 10 August
Light rain. High 87°, low 72°.
Pressure29.97 inHg
Wind7.6 mph S
Humidity42%
Visibility6.2 mi
Dew point62°
Tue, 1195° / 78°0.02
95 °
Union City, Tuesday, 11 August
Light rain. High 95°, low 78°.
Pressure29.85 inHg
Wind10.2 mph NW
Humidity34%
Visibility6.2 mi
Dew point57°
Wed, 1285° / 77°0.03
85 °
Union City, Wednesday, 12 August
Light rain. High 85°, low 77°.
Pressure29.71 inHg
Wind8.2 mph NW
Humidity57%
Visibility6.2 mi
Dew point66°
Thu, 1387° / 72°0.09
87 °
Union City, Thursday, 13 August
Light rain. High 87°, low 72°.
Pressure29.74 inHg
Wind17.5 mph N
Humidity31%
Visibility—
Dew point51°
Fri, 1482° / 66°0
82 °
Union City, Friday, 14 August
Clear. High 82°, low 66°.
Pressure29.97 inHg
Wind12.1 mph W
Humidity27%
Visibility—
Dew point41°
Sat, 1584° / 68°0
84 °
Union City, Saturday, 15 August
Clear. High 84°, low 68°.
Pressure30.09 inHg
Wind13.9 mph NW
Humidity28%
Visibility—
Dew point44°
Sun, 1684° / 68°0
84 °
Union City, Sunday, 16 August
Overcast. High 84°, low 68°.
Pressure30.15 inHg
Wind8.9 mph S
Humidity21%
Visibility—
Dew point37°
Mon, 1782° / 70°0.06
82 °
Union City, Monday, 17 August
Light rain. High 82°, low 70°.
Pressure30.12 inHg
Wind13.6 mph SE
Humidity43%
Visibility—
Dew point56°
Tue, 1877° / 69°0.17
77 °
Union City, Tuesday, 18 August
Light rain. High 77°, low 69°.
Pressure30.09 inHg
Wind8.5 mph S
Humidity60%
Visibility—
Dew point60°
Wed, 1976° / 72°0
76 °
Union City, Wednesday, 19 August
Light rain. High 76°, low 72°.
Pressure30.00 inHg
Wind11.7 mph S
Humidity66%
Visibility—
Dew point63°
Thu, 2084° / 70°1.06
84 °
Union City, Thursday, 20 August
Heavy rain. High 84°, low 70°.
Pressure29.65 inHg
Wind14.4 mph W
Humidity69%
Visibility—
Dew point64°
Fri, 2181° / 68°0
81 °
Union City, Friday, 21 August
Partly cloudy. High 81°, low 68°.
Pressure29.80 inHg
Wind14.6 mph NW
Humidity43%
Visibility—
Dew point49°
Sat, 2283° / 65°0
83 °
Union City, Saturday, 22 August
Clear. High 83°, low 65°.
Pressure30.06 inHg
Wind8.3 mph NW
Humidity25%
Visibility—
Dew point36°
Sun, 2381° / 69°0
81 °
Union City, Sunday, 23 August
Light rain. High 81°, low 69°.
Pressure30.06 inHg
Wind12.8 mph S
Humidity59%
Visibility—
Dew point59°
Mon, 2489° / 72°0.08
89 °
Union City, Monday, 24 August
Light rain. High 89°, low 72°.
Pressure29.88 inHg
Wind11.5 mph NW
Humidity47%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 65°0.07
81 °
Union City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (1968)
Record low54° (1971)
Wed, 2681° / 65°0.08
81 °
Union City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.08 in
Chance of precipitation22%
Record high91° (1993)
Record low55° (1963)
Thu, 2782° / 66°0.15
82 °
Union City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation32%
Record high92° (1980)
Record low57° (1969)
Fri, 2881° / 67°0.2
81 °
Union City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0.2 in
Chance of precipitation42%
Record high94° (1973)
Record low57° (1968)
Sat, 2980° / 66°0.14
80 °
Union City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.14 in
Chance of precipitation37%
Record high93° (2018)
Record low50° (1982)
Sun, 3080° / 65°0.06
80 °
Union City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.06 in
Chance of precipitation28%
Record high93° (1973)
Record low52° (1965)
Mon, 3180° / 65°0.05
80 °
Union City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.05 in
Chance of precipitation17%
Record high94° (2010)
Record low50° (1965)
Tue, 0179° / 64°0.12
79 °
Union City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.12 in
Chance of precipitation32%
Record high94° (2010)
Record low55° (2017)
Wed, 0278° / 64°0.17
78 °
Union City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.17 in
Chance of precipitation33%
Record high94° (1980)
Record low54° (1967)
Thu, 0379° / 64°0.12
79 °
Union City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.12 in
Chance of precipitation30%
Record high91° (1993)
Record low50° (1967)
Fri, 0479° / 64°0.11
79 °
Union City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.11 in
Chance of precipitation32%
Record high93° (2023)
Record low53° (1975)
Sat, 0579° / 64°0.06
79 °
Union City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.06 in
Chance of precipitation22%
Record high96° (2023)
Record low53° (1997)
Sun, 0678° / 64°0.19
78 °
Union City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.19 in
Chance of precipitation30%
Record high97° (2023)
Record low52° (1984)
Mon, 0778° / 63°0.11
78 °
Union City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.11 in
Chance of precipitation33%
Record high96° (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 Union City, 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 Union City, 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.