Monthly outlook for Rainbow Lakes, NJ: average high 80.9°, average low 63.3°. That is 0° below the climate normal for August. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 11 August (90.7°), the coolest 22 August (54.8°).
80.9°/63.3°
Average high / low
−0°
Below normal
5 / 6
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
83.4°
81.8°
+0.9°
18 August – 27 August
76.8°
79.9°
-1.7°
28 August – 6 September
at normal
78.7°
—
August records over 66 years
99.1°2 August 2006All-time high
47.3°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Caldwell (10 mi).
Sun, 0988° / 71°0
88 °
Rainbow Lakes, Sunday, 9 August
Clear. High 88°, low 71°.
Pressure29.97 inHg
Wind6.6 mph NW
Humidity44%
Visibility6.2 mi
Dew point63°
Mon, 1088° / 71°0
88 °
Rainbow Lakes, Monday, 10 August
Clear. High 88°, low 71°.
Pressure29.97 inHg
Wind7.1 mph W
Humidity41%
Visibility6.2 mi
Dew point61°
Tue, 1191° / 71°0.02
91 °
Rainbow Lakes, Tuesday, 11 August
Light rain. High 91°, low 71°.
Pressure29.88 inHg
Wind8.8 mph NW
Humidity38%
Visibility6.2 mi
Dew point58°
Wed, 1280° / 69°0.14
80 °
Rainbow Lakes, Wednesday, 12 August
Light rain. High 80°, low 69°.
Pressure29.71 inHg
Wind7.6 mph W
Humidity65%
Visibility6.2 mi
Dew point66°
Thu, 1383° / 63°0.07
83 °
Rainbow Lakes, Thursday, 13 August
Light rain. High 83°, low 63°.
Pressure29.77 inHg
Wind11.2 mph NW
Humidity35%
Visibility—
Dew point51°
Fri, 1478° / 58°0
78 °
Rainbow Lakes, Friday, 14 August
Clear. High 78°, low 58°.
Pressure30.00 inHg
Wind9.3 mph W
Humidity33%
Visibility—
Dew point43°
Sat, 1579° / 59°0
79 °
Rainbow Lakes, Saturday, 15 August
Clear. High 79°, low 59°.
Pressure30.09 inHg
Wind11.2 mph NW
Humidity34%
Visibility—
Dew point46°
Sun, 1680° / 56°0
80 °
Rainbow Lakes, Sunday, 16 August
Partly cloudy. High 80°, low 56°.
Pressure30.15 inHg
Wind6.4 mph N
Humidity27%
Visibility—
Dew point40°
Mon, 1781° / 59°0.09
81 °
Rainbow Lakes, Monday, 17 August
Light rain. High 81°, low 59°.
Pressure30.12 inHg
Wind8.3 mph S
Humidity42%
Visibility—
Dew point54°
Tue, 1871° / 64°0.11
71 °
Rainbow Lakes, Tuesday, 18 August
Light rain. High 71°, low 64°.
Pressure30.09 inHg
Wind5.9 mph S
Humidity83%
Visibility—
Dew point62°
Wed, 1976° / 65°0.01
76 °
Rainbow Lakes, Wednesday, 19 August
Light rain. High 76°, low 65°.
Pressure29.94 inHg
Wind8.2 mph S
Humidity72%
Visibility—
Dew point62°
Thu, 2081° / 63°0.84
81 °
Rainbow Lakes, Thursday, 20 August
Rain. High 81°, low 63°.
Pressure29.59 inHg
Wind11.2 mph W
Humidity41%
Visibility—
Dew point53°
Fri, 2177° / 59°0
77 °
Rainbow Lakes, Friday, 21 August
Clear. High 77°, low 59°.
Pressure29.83 inHg
Wind12.6 mph NW
Humidity37%
Visibility—
Dew point47°
Sat, 2279° / 55°0
79 °
Rainbow Lakes, Saturday, 22 August
Clear. High 79°, low 55°.
Pressure30.03 inHg
Wind7.1 mph NW
Humidity26%
Visibility—
Dew point38°
Sun, 2378° / 59°0.01
78 °
Rainbow Lakes, Sunday, 23 August
Light rain. High 78°, low 59°.
Pressure30.00 inHg
Wind9.1 mph S
Humidity62%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 63°0.07
80 °
Rainbow Lakes, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (1998)
Record low52° (1971)
Tue, 2581° / 63°0.07
81 °
Rainbow Lakes, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (1968)
Record low51° (1971)
Wed, 2681° / 64°0.08
81 °
Rainbow Lakes, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation25%
Record high91° (1993)
Record low54° (1960)
Thu, 2781° / 65°0.16
81 °
Rainbow Lakes, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.16 in
Chance of precipitation32%
Record high94° (2020)
Record low56° (1969)
Fri, 2880° / 66°0.22
80 °
Rainbow Lakes, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.22 in
Chance of precipitation40%
Record high94° (2018)
Record low55° (1968)
Sat, 2980° / 65°0.15
80 °
Rainbow Lakes, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.15 in
Chance of precipitation37%
Record high93° (2018)
Record low49° (1982)
Sun, 3080° / 64°0.06
80 °
Rainbow Lakes, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation28%
Record high92° (1973)
Record low47° (1986)
Mon, 3179° / 64°0.06
79 °
Rainbow Lakes, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (2010)
Record low49° (1986)
Tue, 0178° / 63°0.13
78 °
Rainbow Lakes, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.13 in
Chance of precipitation32%
Record high93° (2010)
Record low53° (2017)
Wed, 0278° / 62°0.17
78 °
Rainbow Lakes, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.17 in
Chance of precipitation40%
Record high94° (1980)
Record low51° (2017)
Thu, 0378° / 62°0.13
78 °
Rainbow Lakes, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation37%
Record high91° (2015)
Record low49° (1967)
Fri, 0479° / 63°0.12
79 °
Rainbow Lakes, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.12 in
Chance of precipitation32%
Record high91° (2023)
Record low52° (1997)
Sat, 0578° / 63°0.06
78 °
Rainbow Lakes, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.06 in
Chance of precipitation22%
Record high95° (2023)
Record low52° (1987)
Sun, 0677° / 62°0.2
77 °
Rainbow Lakes, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.2 in
Chance of precipitation30%
Record high95° (2018)
Record low50° (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 Rainbow Lakes, 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 Rainbow Lakes, 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.