Monthly outlook for Round Top, NJ: average high 61.3°, average low 47.7°. That is 0.9° below the climate normal for October. Precipitation is expected on 3 days (about 1.7 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 14 October (78.7°), the coolest 18 October (34.1°).
61.3°/47.7°
Average high / low
−0.9°
Below normal
3 / 4
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
65.8°
63.8°
+1.1°
22 October – 31 October
53.7°
60.1°
-3.6°
1 November – 10 November
at normal
57.3°
—
October records over 66 years
92.8°2 October 2019All-time high
26.8°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Bound Brook (4 mi).
Tue, 1375° / 52°0
75 °
Round Top, Tuesday, 13 October
Clear. High 75°, low 52°.
Pressure29.94 inHg
Wind4.9 mph S
Humidity73%
Visibility6.2 mi
Dew point62°
Wed, 1479° / 62°0
79 °
Round Top, Wednesday, 14 October
Overcast. High 79°, low 62°.
Pressure29.88 inHg
Wind9.2 mph NW
Humidity61%
Visibility6.2 mi
Dew point63°
Thu, 1565° / 54°0
65 °
Round Top, Thursday, 15 October
Partly cloudy. High 65°, low 54°.
Pressure30.18 inHg
Wind3.3 mph N
Humidity58%
Visibility6.2 mi
Dew point49°
Fri, 1670° / 52°0.72
70 °
Round Top, Friday, 16 October
Rain. High 70°, low 52°.
Pressure29.62 inHg
Wind15.9 mph NW
Humidity98%
Visibility—
Dew point64°
Sat, 1750° / 37°0
50 °
Round Top, Saturday, 17 October
Partly cloudy. High 50°, low 37°.
Pressure30.21 inHg
Wind16.7 mph NW
Humidity51%
Visibility—
Dew point29°
Sun, 1852° / 34°0
52 °
Round Top, Sunday, 18 October
Clear. High 52°, low 34°.
Pressure30.68 inHg
Wind7.3 mph SW
Humidity32%
Visibility—
Dew point17°
Mon, 1961° / 38°0
61 °
Round Top, Monday, 19 October
Clear. High 61°, low 38°.
Pressure30.53 inHg
Wind9.6 mph SW
Humidity40%
Visibility—
Dew point27°
Tue, 2068° / 47°0
68 °
Round Top, Tuesday, 20 October
Mostly clear. High 68°, low 47°.
Pressure30.36 inHg
Wind5.2 mph W
Humidity45%
Visibility—
Dew point38°
Wed, 2167° / 52°0
67 °
Round Top, Wednesday, 21 October
Overcast. High 67°, low 52°.
Pressure30.39 inHg
Wind8.1 mph E
Humidity63%
Visibility—
Dew point48°
Thu, 2263° / 53°0.05
63 °
Round Top, Thursday, 22 October
Light rain. High 63°, low 53°.
Pressure30.33 inHg
Wind10.4 mph SE
Humidity73%
Visibility—
Dew point53°
Fri, 2361° / 51°0.87
61 °
Round Top, Friday, 23 October
Rain. High 61°, low 51°.
Pressure29.80 inHg
Wind16.6 mph SE
Humidity88%
Visibility—
Dew point57°
Sat, 2451° / 45°0
51 °
Round Top, Saturday, 24 October
Partly cloudy. High 51°, low 45°.
Pressure29.50 inHg
Wind16.4 mph NW
Humidity58%
Visibility—
Dew point37°
Sun, 2545° / 42°0.01
45 °
Round Top, Sunday, 25 October
Light rain. High 45°, low 42°.
Pressure29.47 inHg
Wind16.7 mph NW
Humidity72%
Visibility—
Dew point35°
Mon, 2651° / 45°0
51 °
Round Top, Monday, 26 October
Overcast. High 51°, low 45°.
Pressure29.71 inHg
Wind9.6 mph NW
Humidity61%
Visibility—
Dew point37°
Tue, 2751° / 45°0
51 °
Round Top, Tuesday, 27 October
Overcast. High 51°, low 45°.
Pressure29.80 inHg
Wind9 mph NW
Humidity58%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2860° / 45°0.14
60 °
Round Top, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.14 in
Chance of precipitation28%
Record high80° (2023)
Record low30° (1976)
Thu, 2958° / 44°0.22
58 °
Round Top, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.22 in
Chance of precipitation28%
Record high75° (1984)
Record low31° (1965)
Fri, 3058° / 43°0.09
58 °
Round Top, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.09 in
Chance of precipitation23%
Record high79° (2024)
Record low33° (2011)
Sat, 3159° / 44°0.05
59 °
Round Top, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.05 in
Chance of precipitation17%
Record high82° (2024)
Record low27° (2011)
Sun, 0160° / 45°0.09
60 °
Round Top, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.09 in
Chance of precipitation27%
Record high79° (2024)
Record low33° (1983)
Mon, 0260° / 46°0.09
60 °
Round Top, Monday, 2 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.09 in
Chance of precipitation33%
Record high76° (1982)
Record low31° (2002)
Tue, 0360° / 44°0.07
60 °
Round Top, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.07 in
Chance of precipitation23%
Record high77° (2003)
Record low32° (2002)
Wed, 0458° / 43°0.07
58 °
Round Top, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.07 in
Chance of precipitation18%
Record high73° (1987)
Record low31° (2021)
Thu, 0558° / 43°0.12
58 °
Round Top, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.12 in
Chance of precipitation28%
Record high77° (2022)
Record low32° (1983)
Fri, 0656° / 43°0.08
56 °
Round Top, Friday, 6 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.08 in
Chance of precipitation32%
Record high80° (2024)
Record low31° (2012)
Sat, 0756° / 42°0.09
56 °
Round Top, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation22%
Record high75° (2022)
Record low29° (1962)
Sun, 0855° / 41°0.14
55 °
Round Top, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.14 in
Chance of precipitation27%
Record high74° (2020)
Record low28° (1960)
Mon, 0956° / 41°0.08
56 °
Round Top, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.08 in
Chance of precipitation27%
Record high74° (2020)
Record low22° (2019)
Tue, 1056° / 41°0.16
56 °
Round Top, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.16 in
Chance of precipitation37%
Record high74° (2020)
Record low25° (2017)
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 Round Top, 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 Round Top, 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.