As of 01:41 EDT

Weather in Jefferson, NJ

41°Current weather

Jefferson, Tuesday, 20 October, 01:41

Clear. Feels like 36°. High 65°, low 40°.

Pressure30.24 inHg
Wind8.9 mph N
Humidity84%
Visibility6.2 mi
Dew point37°

Monthly outlook for Jefferson, NJ: average high 56.6°, average low 38.1°. That is 0.3° below the climate normal for October. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 20 October (65.1°), the coolest 29 October (27.6°).

56.6°/38.1°
Average high / low
−0.3°
Below normal
1 / 4
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October58.1°57.9°+0.1°
30 October – 8 November54.3°54.6°-0.2°
9 November – 18 Novemberat normal49.7°—

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).

Wed, 2160° / 35°0Clear
60 °Clear

Jefferson, Wednesday, 21 October

Clear. High 60°, low 35°.

Pressure30.24 inHg
Wind10.6 mph N
Humidity54%
Visibility6.2 mi
Dew point37°
Thu, 2261° / 38°0Clear
61 °Clear

Jefferson, Thursday, 22 October

Clear. High 61°, low 38°.

Pressure29.97 inHg
Wind11.4 mph NW
Humidity53%
Visibility6.2 mi
Dew point40°
Fri, 2350° / 38°0Clear
50 °Clear

Jefferson, Friday, 23 October

Clear. High 50°, low 38°.

Pressure30.27 inHg
Wind11.2 mph N
Humidity54%
Visibility6.2 mi
Dew point28°
Sat, 2457° / 32°0Partly cloudy
57 °Partly cloudy

Jefferson, Saturday, 24 October

Partly cloudy. High 57°, low 32°.

Pressure30.50 inHg
Wind5.2 mph NW
Humidity56%
Visibility—
Dew point29°
Sun, 2560° / 34°0Clear
60 °Clear

Jefferson, Sunday, 25 October

Clear. High 60°, low 34°.

Pressure30.59 inHg
Wind4.7 mph SW
Humidity52%
Visibility—
Dew point32°
Mon, 2664° / 42°0Overcast
64 °Overcast

Jefferson, Monday, 26 October

Overcast. High 64°, low 42°.

Pressure30.27 inHg
Wind7.8 mph W
Humidity57%
Visibility—
Dew point40°
Tue, 2765° / 52°0Light rain
65 °Light rain

Jefferson, Tuesday, 27 October

Light rain. High 65°, low 52°.

Pressure30.15 inHg
Wind9.4 mph SW
Humidity83%
Visibility—
Dew point50°
Wed, 2854° / 35°0Overcast
54 °Overcast

Jefferson, Wednesday, 28 October

Overcast. High 54°, low 35°.

Pressure29.94 inHg
Wind11.1 mph NW
Humidity57%
Visibility—
Dew point33°
Thu, 2946° / 28°0Clear
46 °Clear

Jefferson, Thursday, 29 October

Clear. High 46°, low 28°.

Pressure30.03 inHg
Wind12.8 mph W
Humidity49%
Visibility—
Dew point21°
Fri, 3049° / 29°0Clear
49 °Clear

Jefferson, Friday, 30 October

Clear. High 49°, low 29°.

Pressure30.21 inHg
Wind8 mph W
Humidity55%
Visibility—
Dew point26°
Sat, 3154° / 32°0Clear
54 °Clear

Jefferson, Saturday, 31 October

Clear. High 54°, low 32°.

Pressure30.33 inHg
Wind7.3 mph W
Humidity43%
Visibility—
Dew point24°
Sun, 0157° / 37°0Clear
57 °Clear

Jefferson, Sunday, 1 November

Clear. High 57°, low 37°.

Pressure30.47 inHg
Wind7.5 mph SW
Humidity65%
Visibility—
Dew point38°
Mon, 0259° / 42°0Overcast
59 °Overcast

Jefferson, Monday, 2 November

Overcast. High 59°, low 42°.

Pressure30.27 inHg
Wind7.7 mph SW
Humidity58%
Visibility—
Dew point37°
Tue, 0354° / 49°0.59Rain
54 °Rain

Jefferson, Tuesday, 3 November

Rain. High 54°, low 49°.

Pressure29.97 inHg
Wind10.6 mph SE
Humidity97%
Visibility—
Dew point51°
Wed, 0453° / 48°0.03Light rain
53 °Light rain

Jefferson, Wednesday, 4 November

Light rain. High 53°, low 48°.

Pressure29.65 inHg
Wind13 mph NW
Humidity74%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1449° / 35°0.09Climate normal
49 °Climate normal

Jefferson, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation23%
Record high67° (1993)
Record low20° (1986)
Sun, 1550° / 36°0.11Climate normal
50 °Climate normal

Jefferson, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation40%
Record high72° (1993)
Record low21° (1967)
Mon, 1649° / 36°0.12Climate normal
49 °Climate normal

Jefferson, Monday, 16 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation27%
Record high69° (2005)
Record low18° (1967)
Tue, 1748° / 35°0.11Climate normal
48 °Climate normal

Jefferson, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.11 in
Chance of precipitation35%
Record high63° (1987)
Record low21° (2019)
Wed, 1848° / 34°0.09Climate normal
48 °Climate normal

Jefferson, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation30%
Record high65° (1963)
Record low24° (2014)

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.