As of 06:30 PDT

Weather in Thornton, CA

52°Current weather

Thornton, Monday, 19 October, 06:30

Clear. Feels like 51°. High 75°, low 50°.

Pressure29.94 inHg
Wind7.6 mph SW
Humidity86%
Visibility6.2 mi
Dew point48°

Monthly outlook for Thornton, CA: average high 73.3°, average low 54°. That is 0.7° above the climate normal for October. Precipitation is expected on 1 day (about 1.1 inches), against a normal of 2 days and 1.0 inches. The warmest day looks like 25 October (80.8°), the coolest 24 October (48.7°).

73.3°/54°
Average high / low
+0.7°
Above normal
1 / 2
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October76.2°73.5°+1.5°
29 October – 7 November68.3°68.8°-0.3°
8 November – 17 Novemberat normal63.9°—

October records over 66 years

103.1°2 October 2024All-time high
36.3°31 October 2023All-time low

Climate normals and records are computed from the nearest reference point — Elk Grove (13 mi).

Tue, 2076° / 49°0Mostly clear
76 °Mostly clear

Thornton, Tuesday, 20 October

Mostly clear. High 76°, low 49°.

Pressure29.91 inHg
Wind2.3 mph NW
Humidity38%
Visibility6.2 mi
Dew point40°
Wed, 2172° / 57°0.01Light rain
72 °Light rain

Thornton, Wednesday, 21 October

Light rain. High 72°, low 57°.

Pressure29.88 inHg
Wind2.4 mph SW
Humidity44%
Visibility6.2 mi
Dew point45°
Thu, 2274° / 53°0Overcast
74 °Overcast

Thornton, Thursday, 22 October

Overcast. High 74°, low 53°.

Pressure29.97 inHg
Wind5 mph SW
Humidity53%
Visibility6.2 mi
Dew point52°
Fri, 2375° / 51°0Clear
75 °Clear

Thornton, Friday, 23 October

Clear. High 75°, low 51°.

Pressure30.12 inHg
Wind11.9 mph NW
Humidity63%
Visibility—
Dew point51°
Sat, 2475° / 49°0Mostly clear
75 °Mostly clear

Thornton, Saturday, 24 October

Mostly clear. High 75°, low 49°.

Pressure30.06 inHg
Wind5.9 mph NW
Humidity36%
Visibility—
Dew point34°
Sun, 2581° / 55°0Partly cloudy
81 °Partly cloudy

Thornton, Sunday, 25 October

Partly cloudy. High 81°, low 55°.

Pressure30.12 inHg
Wind6.7 mph NW
Humidity22%
Visibility—
Dew point29°
Mon, 2680° / 57°0Overcast
80 °Overcast

Thornton, Monday, 26 October

Overcast. High 80°, low 57°.

Pressure30.03 inHg
Wind4.8 mph NW
Humidity23%
Visibility—
Dew point29°
Tue, 2777° / 55°0Overcast
77 °Overcast

Thornton, Tuesday, 27 October

Overcast. High 77°, low 55°.

Pressure29.94 inHg
Wind4 mph N
Humidity26%
Visibility—
Dew point31°
Wed, 2878° / 53°0Clear
78 °Clear

Thornton, Wednesday, 28 October

Clear. High 78°, low 53°.

Pressure29.97 inHg
Wind7.2 mph W
Humidity24%
Visibility—
Dew point29°
Thu, 2975° / 57°0Overcast
75 °Overcast

Thornton, Thursday, 29 October

Overcast. High 75°, low 57°.

Pressure29.91 inHg
Wind6.1 mph W
Humidity35%
Visibility—
Dew point37°
Fri, 3069° / 57°0.03Light rain
69 °Light rain

Thornton, Friday, 30 October

Light rain. High 69°, low 57°.

Pressure29.88 inHg
Wind8.1 mph SE
Humidity66%
Visibility—
Dew point52°
Sat, 3172° / 52°0Overcast
72 °Overcast

Thornton, Saturday, 31 October

Overcast. High 72°, low 52°.

Pressure29.91 inHg
Wind6.8 mph NW
Humidity56%
Visibility—
Dew point46°
Sun, 0165° / 57°0.99Rain
65 °Rain

Thornton, Sunday, 1 November

Rain. High 65°, low 57°.

Pressure29.71 inHg
Wind28.9 mph SE
Humidity80%
Visibility—
Dew point56°
Mon, 0266° / 55°0Overcast
66 °Overcast

Thornton, Monday, 2 November

Overcast. High 66°, low 55°.

Pressure30.24 inHg
Wind6.3 mph N
Humidity71%
Visibility—
Dew point53°
Tue, 0364° / 57°0.04Light rain
64 °Light rain

Thornton, Tuesday, 3 November

Light rain. High 64°, low 57°.

Pressure30.15 inHg
Wind8.4 mph N
Humidity85%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0469° / 48°0.04Climate normal
69 °Climate normal

Thornton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high69°
Average low48°
Average precipitation0.04 in
Chance of precipitation17%
Record high80° (1976)
Record low38° (1973)
Thu, 0568° / 48°0.07Climate normal
68 °Climate normal

Thornton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high68°
Average low48°
Average precipitation0.07 in
Chance of precipitation13%
Record high80° (2020)
Record low39° (2011)
Fri, 0667° / 49°0.07Climate normal
67 °Climate normal

Thornton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high67°
Average low49°
Average precipitation0.07 in
Chance of precipitation15%
Record high79° (1976)
Record low41° (1996)
Sat, 0767° / 48°0.07Climate normal
67 °Climate normal

Thornton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high67°
Average low48°
Average precipitation0.07 in
Chance of precipitation25%
Record high78° (1991)
Record low39° (2011)
Sun, 0866° / 47°0.08Climate normal
66 °Climate normal

Thornton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high66°
Average low47°
Average precipitation0.08 in
Chance of precipitation17%
Record high77° (1990)
Record low39° (2021)
Mon, 0965° / 46°0.1Climate normal
65 °Climate normal

Thornton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high65°
Average low46°
Average precipitation0.1 in
Chance of precipitation23%
Record high77° (1976)
Record low37° (1982)
Tue, 1064° / 46°0.12Climate normal
64 °Climate normal

Thornton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.12 in
Chance of precipitation33%
Record high78° (1990)
Record low33° (2020)
Wed, 1164° / 46°0.12Climate normal
64 °Climate normal

Thornton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.12 in
Chance of precipitation30%
Record high78° (1990)
Record low33° (2018)
Thu, 1264° / 45°0.1Climate normal
64 °Climate normal

Thornton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high64°
Average low45°
Average precipitation0.1 in
Chance of precipitation23%
Record high77° (1990)
Record low33° (2018)
Fri, 1364° / 46°0.14Climate normal
64 °Climate normal

Thornton, Friday, 13 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.14 in
Chance of precipitation30%
Record high79° (2013)
Record low33° (1985)
Sat, 1464° / 46°0.08Climate normal
64 °Climate normal

Thornton, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.08 in
Chance of precipitation20%
Record high77° (2008)
Record low32° (1985)
Sun, 1564° / 45°0.07Climate normal
64 °Climate normal

Thornton, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high64°
Average low45°
Average precipitation0.07 in
Chance of precipitation22%
Record high75° (2010)
Record low33° (2018)
Mon, 1663° / 46°0.11Climate normal
63 °Climate normal

Thornton, Monday, 16 November

Climate normal for this date — 60-year average.

Average high63°
Average low46°
Average precipitation0.11 in
Chance of precipitation33%
Record high74° (1977)
Record low33° (2018)
Tue, 1763° / 46°0.15Climate normal
63 °Climate normal

Thornton, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high63°
Average low46°
Average precipitation0.15 in
Chance of precipitation28%
Record high75° (2008)
Record low32° (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 Thornton, 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 Thornton, 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.