As of 22:06 EDT

Weather in Jefferson, NJ

40°Current weather

Jefferson, Sunday, 18 October, 22:06

Clear. Feels like 40°. High 56°, low 32°.

Pressure30.53 inHg
Wind0 mph N
Humidity83%
Visibility6.2 mi
Dew point35°

Monthly outlook for Jefferson, NJ: average high 57.2°, average low 41.2°. That is 0.2° below the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 1 November (65.9°), the coolest 18 October (31.8°).

57.2°/41.2°
Average high / low
−0.2°
Below normal
3 / 5
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October58.2°58.6°-0.2°
28 October – 6 November55.5°55.3°+0.1°
7 November – 16 Novemberat normal50.5°—

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).

Mon, 1962° / 36°0Clear
62 °Clear

Jefferson, Monday, 19 October

Clear. High 62°, low 36°.

Pressure30.42 inHg
Wind5.1 mph N
Humidity44%
Visibility6.2 mi
Dew point37°
Tue, 2064° / 43°0Clear
64 °Clear

Jefferson, Tuesday, 20 October

Clear. High 64°, low 43°.

Pressure30.27 inHg
Wind11.2 mph NE
Humidity55%
Visibility6.2 mi
Dew point43°
Wed, 2156° / 38°0Clear
56 °Clear

Jefferson, Wednesday, 21 October

Clear. High 56°, low 38°.

Pressure30.27 inHg
Wind9.1 mph NE
Humidity55%
Visibility6.2 mi
Dew point37°
Thu, 2261° / 38°0Clear
61 °Clear

Jefferson, Thursday, 22 October

Clear. High 61°, low 38°.

Pressure30.06 inHg
Wind9.9 mph N
Humidity50%
Visibility6.2 mi
Dew point38°
Fri, 2353° / 36°0Clear
53 °Clear

Jefferson, Friday, 23 October

Clear. High 53°, low 36°.

Pressure30.42 inHg
Wind9.4 mph N
Humidity57%
Visibility—
Dew point30°
Sat, 2454° / 33°0Overcast
54 °Overcast

Jefferson, Saturday, 24 October

Overcast. High 54°, low 33°.

Pressure30.65 inHg
Wind5 mph NE
Humidity52%
Visibility—
Dew point30°
Sun, 2556° / 36°0Mostly clear
56 °Mostly clear

Jefferson, Sunday, 25 October

Mostly clear. High 56°, low 36°.

Pressure30.45 inHg
Wind8.6 mph SW
Humidity62%
Visibility—
Dew point36°
Mon, 2659° / 44°0Clear
59 °Clear

Jefferson, Monday, 26 October

Clear. High 59°, low 44°.

Pressure30.30 inHg
Wind10.5 mph NW
Humidity49%
Visibility—
Dew point35°
Tue, 2760° / 43°0Overcast
60 °Overcast

Jefferson, Tuesday, 27 October

Overcast. High 60°, low 43°.

Pressure30.24 inHg
Wind9.5 mph SW
Humidity50%
Visibility—
Dew point36°
Wed, 2854° / 48°0.02Light rain
54 °Light rain

Jefferson, Wednesday, 28 October

Light rain. High 54°, low 48°.

Pressure30.24 inHg
Wind7.2 mph N
Humidity84%
Visibility—
Dew point49°
Thu, 2948° / 45°0.04Light rain
48 °Light rain

Jefferson, Thursday, 29 October

Light rain. High 48°, low 45°.

Pressure30.36 inHg
Wind4.9 mph E
Humidity94%
Visibility—
Dew point45°
Fri, 3056° / 45°0.01Light rain
56 °Light rain

Jefferson, Friday, 30 October

Light rain. High 56°, low 45°.

Pressure30.45 inHg
Wind8.4 mph SE
Humidity74%
Visibility—
Dew point42°
Sat, 3157° / 45°0.2Light rain
57 °Light rain

Jefferson, Saturday, 31 October

Light rain. High 57°, low 45°.

Pressure30.24 inHg
Wind8.7 mph S
Humidity95%
Visibility—
Dew point49°
Sun, 0166° / 56°1Rain
66 °Rain

Jefferson, Sunday, 1 November

Rain. High 66°, low 56°.

Pressure29.85 inHg
Wind16.9 mph S
Humidity99%
Visibility—
Dew point57°
Mon, 0252° / 43°0Overcast
52 °Overcast

Jefferson, Monday, 2 November

Overcast. High 52°, low 43°.

Pressure29.83 inHg
Wind14.7 mph W
Humidity61%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)

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.