As of 17:43 EDT

Weather in Waterloo, NJ

86°Current weather

Waterloo, Saturday, 8 August, 17:43

Partly cloudy. Feels like 92°. High 88°, low 74°.

Pressure29.91 inHg
Wind4 mph SW
Humidity63%
Visibility6.2 mi
Dew point72°

Monthly outlook for Waterloo, NJ: average high 80.5°, average low 71.6°. That is 0.3° below the climate normal for August. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 9 August (90.7°), the coolest 23 August (64°).

80.5°/71.6°
Average high / low
−0.3°
Below normal
5 / 6
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August82.3°81.7°+0.3°
18 August – 27 August77.4°80.1°-1.5°
28 August – 6 Septemberat normal78.9°

August records over 66 years

100.4°9 August 2022All-time high
51.8°30 August 1986All-time low

Climate normals and records are computed from the nearest reference point — North Middletown (9 mi).

Sun, 0991° / 73°0.03Light rain
91 °Light rain

Waterloo, Sunday, 9 August

Light rain. High 91°, low 73°.

Pressure29.97 inHg
Wind5.7 mph W
Humidity60%
Visibility6.2 mi
Dew point70°
Mon, 1086° / 76°0.04Light rain
86 °Light rain

Waterloo, Monday, 10 August

Light rain. High 86°, low 76°.

Pressure29.97 inHg
Wind2.5 mph S
Humidity59%
Visibility6.2 mi
Dew point68°
Tue, 1185° / 76°0.06Light rain
85 °Light rain

Waterloo, Tuesday, 11 August

Light rain. High 85°, low 76°.

Pressure29.88 inHg
Wind6.8 mph N
Humidity56%
Visibility6.2 mi
Dew point65°
Wed, 1283° / 73°0.2Rain
83 °Rain

Waterloo, Wednesday, 12 August

Rain. High 83°, low 73°.

Pressure29.77 inHg
Wind7.2 mph W
Humidity66%
Visibility6.2 mi
Dew point67°
Thu, 1386° / 73°0Partly cloudy
86 °Partly cloudy

Waterloo, Thursday, 13 August

Partly cloudy. High 86°, low 73°.

Pressure29.74 inHg
Wind20.6 mph NW
Humidity54%
Visibility
Dew point66°
Fri, 1478° / 70°0Overcast
78 °Overcast

Waterloo, Friday, 14 August

Overcast. High 78°, low 70°.

Pressure29.91 inHg
Wind17.4 mph N
Humidity38%
Visibility
Dew point47°
Sat, 1577° / 67°0Clear
77 °Clear

Waterloo, Saturday, 15 August

Clear. High 77°, low 67°.

Pressure30.15 inHg
Wind16.2 mph NW
Humidity35%
Visibility
Dew point44°
Sun, 1674° / 71°0Partly cloudy
74 °Partly cloudy

Waterloo, Sunday, 16 August

Partly cloudy. High 74°, low 71°.

Pressure30.27 inHg
Wind14.1 mph SE
Humidity42%
Visibility
Dew point49°
Mon, 1777° / 68°0Partly cloudy
77 °Partly cloudy

Waterloo, Monday, 17 August

Partly cloudy. High 77°, low 68°.

Pressure30.18 inHg
Wind22.2 mph S
Humidity56%
Visibility
Dew point59°
Tue, 1880° / 73°0.08Light rain
80 °Light rain

Waterloo, Tuesday, 18 August

Light rain. High 80°, low 73°.

Pressure30.00 inHg
Wind17.3 mph S
Humidity71%
Visibility
Dew point67°
Wed, 1981° / 72°0.01Light rain
81 °Light rain

Waterloo, Wednesday, 19 August

Light rain. High 81°, low 72°.

Pressure29.85 inHg
Wind11.3 mph W
Humidity65%
Visibility
Dew point64°
Thu, 2077° / 72°0Overcast
77 °Overcast

Waterloo, Thursday, 20 August

Overcast. High 77°, low 72°.

Pressure29.97 inHg
Wind13.4 mph N
Humidity55%
Visibility
Dew point57°
Fri, 2175° / 72°0.3Rain
75 °Rain

Waterloo, Friday, 21 August

Rain. High 75°, low 72°.

Pressure29.97 inHg
Wind17.9 mph S
Humidity62%
Visibility
Dew point60°
Sat, 2279° / 70°0.3Rain
79 °Rain

Waterloo, Saturday, 22 August

Rain. High 79°, low 70°.

Pressure29.77 inHg
Wind10.8 mph NW
Humidity90%
Visibility
Dew point68°
Sun, 2372° / 64°0Overcast
72 °Overcast

Waterloo, Sunday, 23 August

Overcast. High 72°, low 64°.

Pressure29.97 inHg
Wind24.1 mph NW
Humidity47%
Visibility
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 66°0.07Climate normal
80 °Climate normal

Waterloo, Monday, 24 August

Climate normal for this date — 60-year average.

Average high80°
Average low66°
Average precipitation0.07 in
Chance of precipitation25%
Record high90° (1998)
Record low56° (1971)
Tue, 2581° / 67°0.07Climate normal
81 °Climate normal

Waterloo, 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 low57° (1971)
Wed, 2681° / 67°0.09Climate normal
81 °Climate normal

Waterloo, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°
Average low67°
Average precipitation0.09 in
Chance of precipitation25%
Record high90° (2021)
Record low58° (1960)
Thu, 2781° / 68°0.14Climate normal
81 °Climate normal

Waterloo, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°
Average low68°
Average precipitation0.14 in
Chance of precipitation32%
Record high92° (2020)
Record low59° (1969)
Fri, 2881° / 69°0.2Climate normal
81 °Climate normal

Waterloo, Friday, 28 August

Climate normal for this date — 60-year average.

Average high81°
Average low69°
Average precipitation0.2 in
Chance of precipitation43%
Record high96° (2024)
Record low58° (2025)
Sat, 2980° / 68°0.16Climate normal
80 °Climate normal

Waterloo, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°
Average low68°
Average precipitation0.16 in
Chance of precipitation33%
Record high94° (2018)
Record low52° (1982)
Sun, 3080° / 67°0.06Climate normal
80 °Climate normal

Waterloo, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°
Average low67°
Average precipitation0.06 in
Chance of precipitation27%
Record high92° (1973)
Record low52° (1986)
Mon, 3180° / 67°0.07Climate normal
80 °Climate normal

Waterloo, Monday, 31 August

Climate normal for this date — 60-year average.

Average high80°
Average low67°
Average precipitation0.07 in
Chance of precipitation18%
Record high92° (2010)
Record low54° (1976)
Tue, 0178° / 66°0.1Climate normal
78 °Climate normal

Waterloo, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°
Average low66°
Average precipitation0.1 in
Chance of precipitation28%
Record high91° (2010)
Record low56° (2017)
Wed, 0278° / 66°0.15Climate normal
78 °Climate normal

Waterloo, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high78°
Average low66°
Average precipitation0.15 in
Chance of precipitation32%
Record high92° (1980)
Record low56° (1967)
Thu, 0378° / 66°0.11Climate normal
78 °Climate normal

Waterloo, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high78°
Average low66°
Average precipitation0.11 in
Chance of precipitation32%
Record high91° (2023)
Record low53° (1967)
Fri, 0479° / 66°0.09Climate normal
79 °Climate normal

Waterloo, Friday, 4 September

Climate normal for this date — 60-year average.

Average high79°
Average low66°
Average precipitation0.09 in
Chance of precipitation32%
Record high94° (2023)
Record low55° (1997)
Sat, 0578° / 66°0.06Climate normal
78 °Climate normal

Waterloo, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high78°
Average low66°
Average precipitation0.06 in
Chance of precipitation22%
Record high92° (2023)
Record low56° (1997)
Sun, 0678° / 65°0.19Climate normal
78 °Climate normal

Waterloo, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high78°
Average low65°
Average precipitation0.19 in
Chance of precipitation33%
Record high96° (2023)
Record low55° (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 Waterloo, 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 Waterloo, 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.