Monthly outlook for Mounts Mills, NJ: average high 86.1°, average low 65.6°. That is 2.1° above the climate normal for August. Precipitation is expected on 5 days (about 0.4 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 21 August (97.2°), the coolest 15 August (56.6°).
86.1°/65.6°
Average high / low
+2.1°
Above normal
5 / 6
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85.3°
83.1°
+1.2°
19 August – 28 August
87.6°
81.5°
+3.4°
29 August – 7 September
at normal
80.2°
—
August records over 66 years
100.6°9 August 2001All-time high
46.6°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Twin Rivers (8 mi).
Mon, 1089° / 72°0.02
89 °
Mounts Mills, Monday, 10 August
Light rain. High 89°, low 72°.
Pressure29.97 inHg
Wind9.8 mph W
Humidity35%
Visibility6.2 mi
Dew point61°
Tue, 1191° / 71°0.09
91 °
Mounts Mills, Tuesday, 11 August
Rain. High 91°, low 71°.
Pressure29.83 inHg
Wind10.2 mph NW
Humidity45%
Visibility6.2 mi
Dew point63°
Wed, 1286° / 72°0
86 °
Mounts Mills, Wednesday, 12 August
Overcast. High 86°, low 72°.
Pressure29.71 inHg
Wind10.4 mph W
Humidity46%
Visibility6.2 mi
Dew point64°
Thu, 1384° / 69°0.11
84 °
Mounts Mills, Thursday, 13 August
Light rain. High 84°, low 69°.
Pressure29.74 inHg
Wind15.9 mph NW
Humidity43%
Visibility—
Dew point57°
Fri, 1479° / 59°0
79 °
Mounts Mills, Friday, 14 August
Mostly clear. High 79°, low 59°.
Pressure29.97 inHg
Wind15 mph NW
Humidity32%
Visibility—
Dew point44°
Sat, 1580° / 57°0
80 °
Mounts Mills, Saturday, 15 August
Clear. High 80°, low 57°.
Pressure30.06 inHg
Wind14.3 mph NW
Humidity28%
Visibility—
Dew point41°
Sun, 1683° / 59°0
83 °
Mounts Mills, Sunday, 16 August
Overcast. High 83°, low 59°.
Pressure30.09 inHg
Wind7.9 mph NW
Humidity22%
Visibility—
Dew point38°
Mon, 1783° / 62°0
83 °
Mounts Mills, Monday, 17 August
Overcast. High 83°, low 62°.
Pressure29.97 inHg
Wind10.9 mph SW
Humidity31%
Visibility—
Dew point47°
Tue, 1889° / 63°0
89 °
Mounts Mills, Tuesday, 18 August
Overcast. High 89°, low 63°.
Pressure30.00 inHg
Wind10 mph SE
Humidity33%
Visibility—
Dew point53°
Wed, 1986° / 69°0
86 °
Mounts Mills, Wednesday, 19 August
Overcast. High 86°, low 69°.
Pressure30.06 inHg
Wind12.3 mph E
Humidity37%
Visibility—
Dew point55°
Thu, 2090° / 68°0
90 °
Mounts Mills, Thursday, 20 August
Mostly clear. High 90°, low 68°.
Pressure30.00 inHg
Wind12 mph E
Humidity37%
Visibility—
Dew point58°
Fri, 2197° / 69°0.06
97 °
Mounts Mills, Friday, 21 August
Light rain. High 97°, low 69°.
Pressure29.85 inHg
Wind13.6 mph SW
Humidity33%
Visibility—
Dew point60°
Sat, 2281° / 58°0.04
81 °
Mounts Mills, Saturday, 22 August
Light rain. High 81°, low 58°.
Pressure30.03 inHg
Wind9 mph W
Humidity27%
Visibility—
Dew point41°
Sun, 2383° / 62°0
83 °
Mounts Mills, Sunday, 23 August
Light rain. High 83°, low 62°.
Pressure30.00 inHg
Wind11.9 mph S
Humidity53%
Visibility—
Dew point62°
Mon, 2489° / 70°0.01
89 °
Mounts Mills, Monday, 24 August
Light rain. High 89°, low 70°.
Pressure29.88 inHg
Wind13.7 mph W
Humidity36%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 64°0.07
82 °
Mounts Mills, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.07 in
Chance of precipitation22%
Record high96° (1968)
Record low52° (1971)
Wed, 2682° / 65°0.07
82 °
Mounts Mills, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (1993)
Record low54° (1960)
Thu, 2783° / 66°0.15
83 °
Mounts Mills, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.15 in
Chance of precipitation37%
Record high92° (2021)
Record low56° (1963)
Fri, 2882° / 67°0.2
82 °
Mounts Mills, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.2 in
Chance of precipitation43%
Record high96° (1973)
Record low53° (2025)
Sat, 2981° / 66°0.11
81 °
Mounts Mills, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.11 in
Chance of precipitation28%
Record high93° (2010)
Record low48° (1986)
Sun, 3082° / 65°0.08
82 °
Mounts Mills, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.08 in
Chance of precipitation28%
Record high95° (1973)
Record low47° (1986)
Mon, 3181° / 65°0.09
81 °
Mounts Mills, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.09 in
Chance of precipitation20%
Record high95° (1973)
Record low49° (1976)
Tue, 0180° / 64°0.12
80 °
Mounts Mills, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.12 in
Chance of precipitation33%
Record high94° (2010)
Record low55° (2017)
Wed, 0280° / 63°0.13
80 °
Mounts Mills, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.13 in
Chance of precipitation35%
Record high96° (1980)
Record low52° (1970)
Thu, 0380° / 64°0.1
80 °
Mounts Mills, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.1 in
Chance of precipitation32%
Record high92° (1993)
Record low48° (1967)
Fri, 0480° / 64°0.08
80 °
Mounts Mills, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation32%
Record high92° (2008)
Record low51° (2024)
Sat, 0580° / 64°0.07
80 °
Mounts Mills, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (2023)
Record low52° (1997)
Sun, 0679° / 63°0.18
79 °
Mounts Mills, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.18 in
Chance of precipitation37%
Record high94° (2023)
Record low51° (1984)
Mon, 0780° / 62°0.09
80 °
Mounts Mills, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.09 in
Chance of precipitation27%
Record high92° (2023)
Record low48° (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 Mounts Mills, 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 Mounts Mills, 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.