As of 09:11 EDT

Weather in Jefferson, NJ

51°Current weather

Jefferson, Thursday, 15 October, 09:11

Mostly clear. Feels like 50°. High 62°, low 50°.

Pressure30.21 inHg
Wind5.7 mph NE
Humidity80%
Visibility6.2 mi
Dew point45°

Monthly outlook for Jefferson, NJ: average high 57.5°, average low 37.9°. That is 0.6° below the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 16 October (74.6°), the coolest 25 October (29°).

57.5°/37.9°
Average high / low
−0.6°
Below normal
1 / 5
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October59.7°59.8°-0°
25 October – 3 November53.7°56.4°-1.5°
4 November – 13 Novemberat normal52°—

October records over 66 years

86.2°8 October 2007All-time high
18.9°31 October 2011All-time low

Climate normals and records are computed from the nearest reference point — Milton (2 mi).

Fri, 1675° / 53°0.33Heavy rain
75 °Heavy rain

Jefferson, Friday, 16 October

Heavy rain. High 75°, low 53°.

Pressure29.77 inHg
Wind11.4 mph SW
Humidity91%
Visibility—
Dew point62°
Sat, 1758° / 37°0Overcast
58 °Overcast

Jefferson, Saturday, 17 October

Overcast. High 58°, low 37°.

Pressure30.18 inHg
Wind15 mph NW
Humidity53%
Visibility6.2 mi
Dew point29°
Sun, 1855° / 35°0Clear
55 °Clear

Jefferson, Sunday, 18 October

Clear. High 55°, low 35°.

Pressure30.56 inHg
Wind2.8 mph SW
Humidity46%
Visibility6.2 mi
Dew point32°
Mon, 1961° / 39°0Clear
61 °Clear

Jefferson, Monday, 19 October

Clear. High 61°, low 39°.

Pressure30.56 inHg
Wind6 mph SW
Humidity55%
Visibility—
Dew point37°
Tue, 2065° / 41°0Clear
65 °Clear

Jefferson, Tuesday, 20 October

Clear. High 65°, low 41°.

Pressure30.36 inHg
Wind3.4 mph N
Humidity53%
Visibility—
Dew point38°
Wed, 2160° / 43°0Mostly clear
60 °Mostly clear

Jefferson, Wednesday, 21 October

Mostly clear. High 60°, low 43°.

Pressure30.36 inHg
Wind7 mph N
Humidity64%
Visibility—
Dew point42°
Thu, 2259° / 38°0Overcast
59 °Overcast

Jefferson, Thursday, 22 October

Overcast. High 59°, low 38°.

Pressure30.39 inHg
Wind5.5 mph NE
Humidity71%
Visibility—
Dew point41°
Fri, 2354° / 36°0Overcast
54 °Overcast

Jefferson, Friday, 23 October

Overcast. High 54°, low 36°.

Pressure30.36 inHg
Wind12.3 mph NE
Humidity57%
Visibility—
Dew point34°
Sat, 2449° / 32°0Clear
49 °Clear

Jefferson, Saturday, 24 October

Clear. High 49°, low 32°.

Pressure30.65 inHg
Wind10.2 mph NE
Humidity53%
Visibility—
Dew point25°
Sun, 2551° / 29°0Overcast
51 °Overcast

Jefferson, Sunday, 25 October

Overcast. High 51°, low 29°.

Pressure30.50 inHg
Wind10.2 mph NE
Humidity42%
Visibility—
Dew point21°
Mon, 2660° / 33°0Clear
60 °Clear

Jefferson, Monday, 26 October

Clear. High 60°, low 33°.

Pressure30.36 inHg
Wind10.3 mph N
Humidity45%
Visibility—
Dew point29°
Tue, 2755° / 35°0Overcast
55 °Overcast

Jefferson, Tuesday, 27 October

Overcast. High 55°, low 35°.

Pressure30.39 inHg
Wind8.9 mph SW
Humidity57%
Visibility—
Dew point33°
Wed, 2856° / 36°0Overcast
56 °Overcast

Jefferson, Wednesday, 28 October

Overcast. High 56°, low 36°.

Pressure30.12 inHg
Wind13 mph NW
Humidity62%
Visibility—
Dew point41°
Thu, 2951° / 33°0Overcast
51 °Overcast

Jefferson, Thursday, 29 October

Overcast. High 51°, low 33°.

Pressure30.12 inHg
Wind10.9 mph SW
Humidity43%
Visibility—
Dew point24°
Fri, 3049° / 35°0.02Light rain
49 °Light rain

Jefferson, Friday, 30 October

Light rain. High 49°, low 35°.

Pressure29.91 inHg
Wind13.3 mph NW
Humidity75%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3156° / 41°0.06Climate normal
56 °Climate normal

Jefferson, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.06 in
Chance of precipitation15%
Record high78° (2024)
Record low19° (2011)
Sun, 0157° / 42°0.09Climate normal
57 °Climate normal

Jefferson, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high75° (1974)
Record low31° (1983)
Mon, 0256° / 42°0.11Climate normal
56 °Climate normal

Jefferson, Monday, 2 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.11 in
Chance of precipitation32%
Record high74° (1982)
Record low28° (1965)
Tue, 0356° / 42°0.09Climate normal
56 °Climate normal

Jefferson, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation25%
Record high74° (2003)
Record low30° (1980)
Wed, 0455° / 41°0.06Climate normal
55 °Climate normal

Jefferson, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.06 in
Chance of precipitation23%
Record high71° (1987)
Record low29° (2006)
Thu, 0554° / 41°0.14Climate normal
54 °Climate normal

Jefferson, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.14 in
Chance of precipitation28%
Record high72° (2022)
Record low30° (1962)
Fri, 0653° / 40°0.09Climate normal
53 °Climate normal

Jefferson, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation32%
Record high76° (2024)
Record low27° (2012)
Sat, 0752° / 39°0.08Climate normal
52 °Climate normal

Jefferson, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.08 in
Chance of precipitation25%
Record high70° (2022)
Record low26° (1962)
Sun, 0852° / 38°0.15Climate normal
52 °Climate normal

Jefferson, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.15 in
Chance of precipitation27%
Record high71° (2020)
Record low25° (2019)
Mon, 0952° / 38°0.09Climate normal
52 °Climate normal

Jefferson, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (1975)
Record low22° (2019)
Tue, 1053° / 38°0.16Climate normal
53 °Climate normal

Jefferson, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.16 in
Chance of precipitation38%
Record high69° (2020)
Record low21° (2017)
Wed, 1151° / 38°0.13Climate normal
51 °Climate normal

Jefferson, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.13 in
Chance of precipitation37%
Record high66° (2006)
Record low20° (2017)
Thu, 1250° / 37°0.16Climate normal
50 °Climate normal

Jefferson, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.16 in
Chance of precipitation38%
Record high67° (1964)
Record low22° (2019)
Fri, 1348° / 35°0.16Climate normal
48 °Climate normal

Jefferson, Friday, 13 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.16 in
Chance of precipitation37%
Record high68° (1964)
Record low19° (2019)

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 Jefferson, 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 Jefferson, 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.