Monthly outlook for Menlo Park, NJ: average high 83.9°, average low 68.6°. That is 1° above the climate normal for August. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 6 days and 2.4 inches. The warmest day looks like 10 August (93.7°), the coolest 22 August (62°).
83.9°/68.6°
Average high / low
+1°
Above normal
4 / 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
86.7°
82.9°
+2.1°
18 August – 27 August
79.2°
81.1°
-1°
28 August – 6 September
at normal
79.9°
—
August records over 66 years
100.9°9 August 2001All-time high
49.8°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Menlo Park Terrace (1 mi).
Sun, 0991° / 73°0.06
91 °
Menlo Park, Sunday, 9 August
Light rain. High 91°, low 73°.
Pressure29.97 inHg
Wind8.1 mph W
Humidity41%
Visibility6.2 mi
Dew point64°
Mon, 1094° / 73°0
94 °
Menlo Park, Monday, 10 August
Clear. High 94°, low 73°.
Pressure29.97 inHg
Wind7.9 mph W
Humidity36%
Visibility6.2 mi
Dew point60°
Tue, 1193° / 77°0
93 °
Menlo Park, Tuesday, 11 August
Overcast. High 93°, low 77°.
Pressure29.88 inHg
Wind7.1 mph W
Humidity39%
Visibility6.2 mi
Dew point61°
Wed, 1285° / 75°0.02
85 °
Menlo Park, Wednesday, 12 August
Light rain. High 85°, low 75°.
Pressure29.71 inHg
Wind9.3 mph W
Humidity56%
Visibility6.2 mi
Dew point66°
Thu, 1386° / 71°0.03
86 °
Menlo Park, Thursday, 13 August
Light rain. High 86°, low 71°.
Pressure29.77 inHg
Wind13.2 mph W
Humidity34%
Visibility—
Dew point53°
Fri, 1481° / 65°0
81 °
Menlo Park, Friday, 14 August
Clear. High 81°, low 65°.
Pressure30.00 inHg
Wind9.1 mph W
Humidity27%
Visibility—
Dew point41°
Sat, 1583° / 66°0
83 °
Menlo Park, Saturday, 15 August
Clear. High 83°, low 66°.
Pressure30.09 inHg
Wind11.1 mph NW
Humidity29%
Visibility—
Dew point45°
Sun, 1683° / 65°0
83 °
Menlo Park, Sunday, 16 August
Partly cloudy. High 83°, low 65°.
Pressure30.15 inHg
Wind6.9 mph N
Humidity24%
Visibility—
Dew point40°
Mon, 1784° / 66°0.08
84 °
Menlo Park, Monday, 17 August
Light rain. High 84°, low 66°.
Pressure30.09 inHg
Wind7.1 mph SE
Humidity38%
Visibility—
Dew point54°
Tue, 1873° / 66°0.17
73 °
Menlo Park, Tuesday, 18 August
Rain. High 73°, low 66°.
Pressure30.09 inHg
Wind5.8 mph S
Humidity72%
Visibility—
Dew point61°
Wed, 1979° / 69°0
79 °
Menlo Park, Wednesday, 19 August
Overcast. High 79°, low 69°.
Pressure29.94 inHg
Wind8.8 mph S
Humidity74%
Visibility—
Dew point62°
Thu, 2081° / 68°1.13
81 °
Menlo Park, Thursday, 20 August
Heavy rain. High 81°, low 68°.
Pressure29.62 inHg
Wind13.3 mph W
Humidity41%
Visibility—
Dew point54°
Fri, 2180° / 66°0
80 °
Menlo Park, Friday, 21 August
Clear. High 80°, low 66°.
Pressure29.83 inHg
Wind11.6 mph NW
Humidity32%
Visibility—
Dew point45°
Sat, 2281° / 62°0
81 °
Menlo Park, Saturday, 22 August
Clear. High 81°, low 62°.
Pressure30.03 inHg
Wind7.1 mph W
Humidity24%
Visibility—
Dew point38°
Sun, 2382° / 64°0.01
82 °
Menlo Park, Sunday, 23 August
Light rain. High 82°, low 64°.
Pressure30.00 inHg
Wind8.7 mph S
Humidity54%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 65°0.06
81 °
Menlo Park, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.06 in
Chance of precipitation23%
Record high93° (1998)
Record low54° (1971)
Tue, 2582° / 65°0.07
82 °
Menlo Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation17%
Record high96° (1968)
Record low55° (1971)
Wed, 2682° / 65°0.09
82 °
Menlo Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation23%
Record high92° (1993)
Record low56° (1963)
Thu, 2782° / 66°0.15
82 °
Menlo Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation35%
Record high93° (2020)
Record low57° (1969)
Fri, 2882° / 67°0.2
82 °
Menlo Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.2 in
Chance of precipitation43%
Record high95° (1973)
Record low57° (1986)
Sat, 2981° / 66°0.14
81 °
Menlo Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.14 in
Chance of precipitation32%
Record high93° (2018)
Record low50° (1982)
Sun, 3081° / 65°0.06
81 °
Menlo Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.06 in
Chance of precipitation25%
Record high95° (1973)
Record low50° (1986)
Mon, 3181° / 65°0.07
81 °
Menlo Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation17%
Record high94° (2010)
Record low51° (1976)
Tue, 0179° / 65°0.13
79 °
Menlo Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low65°
Average precipitation0.13 in
Chance of precipitation30%
Record high95° (2010)
Record low54° (2017)
Wed, 0279° / 64°0.17
79 °
Menlo Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.17 in
Chance of precipitation32%
Record high96° (1980)
Record low52° (2017)
Thu, 0380° / 64°0.13
80 °
Menlo Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation32%
Record high92° (1993)
Record low51° (1967)
Fri, 0480° / 64°0.09
80 °
Menlo Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation30%
Record high93° (2023)
Record low53° (2024)
Sat, 0579° / 64°0.06
79 °
Menlo Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.06 in
Chance of precipitation20%
Record high96° (2023)
Record low54° (1997)
Sun, 0678° / 64°0.18
78 °
Menlo Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low64°
Average precipitation0.18 in
Chance of precipitation32%
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 Menlo 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 Menlo 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.