As of 01:13 PDT

Weather in Jefferson, CA

79°Current weather

Jefferson, Saturday, 17 October, 01:13

Clear. Feels like 79°. High 92°, low 79°.

Pressure29.97 inHg
Wind3.4 mph NE
Humidity32%
Visibility6.2 mi
Dew point46°

Monthly outlook for Jefferson, CA: average high 75.9°, average low 65°. That is 0.8° below the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 17 October (92.4°), the coolest 22 October (57.3°).

75.9°/65°
Average high / low
−0.8°
Below normal
3 / 1
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October78°78.3°-0.1°
27 October – 5 November72.5°75.8°-1.8°
6 November – 15 Novemberat normal72.4°—

October records over 66 years

104.4°1 October 2020All-time high
34.9°30 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Florence (3 mi).

Sun, 1890° / 70°0Clear
90 °Clear

Jefferson, Sunday, 18 October

Clear. High 90°, low 70°.

Pressure29.97 inHg
Wind2.4 mph SE
Humidity21%
Visibility6.2 mi
Dew point42°
Mon, 1985° / 65°0Clear
85 °Clear

Jefferson, Monday, 19 October

Clear. High 85°, low 65°.

Pressure29.91 inHg
Wind3.4 mph SE
Humidity30%
Visibility6.2 mi
Dew point49°
Tue, 2078° / 62°0Partly cloudy
78 °Partly cloudy

Jefferson, Tuesday, 20 October

Partly cloudy. High 78°, low 62°.

Pressure29.88 inHg
Wind4.5 mph S
Humidity55%
Visibility6.2 mi
Dew point57°
Wed, 2167° / 59°0.42Rain
67 °Rain

Jefferson, Wednesday, 21 October

Rain. High 67°, low 59°.

Pressure29.91 inHg
Wind3.9 mph NW
Humidity67%
Visibility—
Dew point55°
Thu, 2271° / 57°0.12Light rain
71 °Light rain

Jefferson, Thursday, 22 October

Light rain. High 71°, low 57°.

Pressure29.97 inHg
Wind11.5 mph SW
Humidity64%
Visibility—
Dew point54°
Fri, 2373° / 65°0Clear
73 °Clear

Jefferson, Friday, 23 October

Clear. High 73°, low 65°.

Pressure30.00 inHg
Wind9.9 mph SW
Humidity55%
Visibility—
Dew point52°
Sat, 2470° / 63°0.03Light rain
70 °Light rain

Jefferson, Saturday, 24 October

Light rain. High 70°, low 63°.

Pressure29.94 inHg
Wind12.4 mph SW
Humidity56%
Visibility—
Dew point49°
Sun, 2573° / 64°0Partly cloudy
73 °Partly cloudy

Jefferson, Sunday, 25 October

Partly cloudy. High 73°, low 64°.

Pressure30.06 inHg
Wind7.7 mph SW
Humidity49%
Visibility—
Dew point48°
Mon, 2679° / 68°0Overcast
79 °Overcast

Jefferson, Monday, 26 October

Overcast. High 79°, low 68°.

Pressure29.91 inHg
Wind5.5 mph SW
Humidity22%
Visibility—
Dew point32°
Tue, 2783° / 67°0.01Light rain
83 °Light rain

Jefferson, Tuesday, 27 October

Light rain. High 83°, low 67°.

Pressure29.77 inHg
Wind12.8 mph SW
Humidity19%
Visibility—
Dew point31°
Wed, 2870° / 64°0.06Light rain
70 °Light rain

Jefferson, Wednesday, 28 October

Light rain. High 70°, low 64°.

Pressure29.68 inHg
Wind15.6 mph SW
Humidity51%
Visibility—
Dew point50°
Thu, 2968° / 63°0.01Light rain
68 °Light rain

Jefferson, Thursday, 29 October

Light rain. High 68°, low 63°.

Pressure30.03 inHg
Wind7.5 mph S
Humidity56%
Visibility—
Dew point49°
Fri, 3072° / 63°0Overcast
72 °Overcast

Jefferson, Friday, 30 October

Overcast. High 72°, low 63°.

Pressure30.03 inHg
Wind8.1 mph SW
Humidity48%
Visibility—
Dew point47°
Sat, 3174° / 66°0Overcast
74 °Overcast

Jefferson, Saturday, 31 October

Overcast. High 74°, low 66°.

Pressure30.03 inHg
Wind8.1 mph SW
Humidity45%
Visibility—
Dew point48°
Sun, 0168° / 64°0Overcast
68 °Overcast

Jefferson, Sunday, 1 November

Overcast. High 68°, low 64°.

Pressure29.97 inHg
Wind6.3 mph SW
Humidity69%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0276° / 52°0.01Climate normal
76 °Climate normal

Jefferson, Monday, 2 November

Climate normal for this date — 60-year average.

Average high76°
Average low52°
Average precipitation0.01 in
Chance of precipitation7%
Record high95° (1997)
Record low43° (1971)
Tue, 0377° / 52°0Climate normal
77 °Climate normal

Jefferson, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high77°
Average low52°
Average precipitation0 in
Chance of precipitation2%
Record high94° (2010)
Record low42° (1990)
Wed, 0476° / 52°0.02Climate normal
76 °Climate normal

Jefferson, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high76°
Average low52°
Average precipitation0.02 in
Chance of precipitation8%
Record high95° (1976)
Record low38° (1994)
Thu, 0574° / 52°0.01Climate normal
74 °Climate normal

Jefferson, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high74°
Average low52°
Average precipitation0.01 in
Chance of precipitation2%
Record high95° (2020)
Record low41° (2011)
Fri, 0673° / 52°0.02Climate normal
73 °Climate normal

Jefferson, Friday, 6 November

Climate normal for this date — 60-year average.

Average high73°
Average low52°
Average precipitation0.02 in
Chance of precipitation7%
Record high92° (2006)
Record low43° (2011)
Sat, 0772° / 52°0.06Climate normal
72 °Climate normal

Jefferson, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high72°
Average low52°
Average precipitation0.06 in
Chance of precipitation10%
Record high91° (2006)
Record low39° (2011)
Sun, 0873° / 52°0.07Climate normal
73 °Climate normal

Jefferson, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high73°
Average low52°
Average precipitation0.07 in
Chance of precipitation17%
Record high90° (2016)
Record low40° (2011)
Mon, 0973° / 51°0.03Climate normal
73 °Climate normal

Jefferson, Monday, 9 November

Climate normal for this date — 60-year average.

Average high73°
Average low51°
Average precipitation0.03 in
Chance of precipitation8%
Record high92° (2016)
Record low40° (2011)
Tue, 1072° / 51°0.03Climate normal
72 °Climate normal

Jefferson, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high72°
Average low51°
Average precipitation0.03 in
Chance of precipitation12%
Record high91° (1990)
Record low41° (1998)
Wed, 1172° / 50°0.04Climate normal
72 °Climate normal

Jefferson, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high72°
Average low50°
Average precipitation0.04 in
Chance of precipitation8%
Record high90° (2021)
Record low38° (2012)
Thu, 1273° / 50°0.03Climate normal
73 °Climate normal

Jefferson, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high73°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high93° (2021)
Record low37° (1978)
Fri, 1373° / 49°0.03Climate normal
73 °Climate normal

Jefferson, Friday, 13 November

Climate normal for this date — 60-year average.

Average high73°
Average low49°
Average precipitation0.03 in
Chance of precipitation8%
Record high92° (2021)
Record low37° (2000)
Sat, 1472° / 50°0.05Climate normal
72 °Climate normal

Jefferson, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high72°
Average low50°
Average precipitation0.05 in
Chance of precipitation7%
Record high91° (2021)
Record low36° (1964)
Sun, 1572° / 49°0.06Climate normal
72 °Climate normal

Jefferson, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high72°
Average low49°
Average precipitation0.06 in
Chance of precipitation8%
Record high89° (2008)
Record low35° (1964)

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, CA 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, CA 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.