As of 17:00 PDT

Weather in Thornton, CA

61°Current weather

Thornton, Wednesday, 21 October, 17:00

Light rain. Feels like 61°. High 68°, low 58°.

Pressure29.85 inHg
Wind5.2 mph W
Humidity80%
Visibility6.2 mi
Dew point55°

Monthly outlook for Thornton, CA: average high 73°, average low 54.1°. That is 1° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 2 days and 1.1 inches. The warmest day looks like 27 October (78.8°), the coolest 1 November (48.8°).

73°/54.1°
Average high / low
+1°
Above normal
2 / 2
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October73.7°72.3°+0.8°
31 October – 9 November71.8°67.9°+2.1°
10 November – 19 Novemberat normal63.2°—

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).

Thu, 2267° / 54°0.07Rain
67 °Rain

Thornton, Thursday, 22 October

Rain. High 67°, low 54°.

Pressure29.91 inHg
Wind6.9 mph S
Humidity56%
Visibility6.2 mi
Dew point53°
Fri, 2372° / 53°0Overcast
72 °Overcast

Thornton, Friday, 23 October

Overcast. High 72°, low 53°.

Pressure30.06 inHg
Wind6.2 mph N
Humidity68%
Visibility5.4 mi
Dew point55°
Sat, 2474° / 49°0Clear
74 °Clear

Thornton, Saturday, 24 October

Clear. High 74°, low 49°.

Pressure30.03 inHg
Wind1.1 mph NE
Humidity38%
Visibility6.2 mi
Dew point40°
Sun, 2575° / 49°0Partly cloudy
75 °Partly cloudy

Thornton, Sunday, 25 October

Partly cloudy. High 75°, low 49°.

Pressure30.09 inHg
Wind1.8 mph N
Humidity42%
Visibility6.2 mi
Dew point44°
Mon, 2675° / 52°0Overcast
75 °Overcast

Thornton, Monday, 26 October

Overcast. High 75°, low 52°.

Pressure30.12 inHg
Wind6.9 mph SW
Humidity55%
Visibility—
Dew point46°
Tue, 2779° / 54°0Overcast
79 °Overcast

Thornton, Tuesday, 27 October

Overcast. High 79°, low 54°.

Pressure30.06 inHg
Wind7.1 mph W
Humidity43%
Visibility—
Dew point44°
Wed, 2876° / 56°0Overcast
76 °Overcast

Thornton, Wednesday, 28 October

Overcast. High 76°, low 56°.

Pressure30.00 inHg
Wind6.6 mph W
Humidity34%
Visibility—
Dew point38°
Thu, 2977° / 55°0Clear
77 °Clear

Thornton, Thursday, 29 October

Clear. High 77°, low 55°.

Pressure30.00 inHg
Wind7.3 mph W
Humidity36%
Visibility—
Dew point40°
Fri, 3075° / 55°0Clear
75 °Clear

Thornton, Friday, 30 October

Clear. High 75°, low 55°.

Pressure29.91 inHg
Wind9.2 mph W
Humidity41%
Visibility—
Dew point42°
Sat, 3172° / 53°0.02Light rain
72 °Light rain

Thornton, Saturday, 31 October

Light rain. High 72°, low 53°.

Pressure29.77 inHg
Wind19.1 mph SW
Humidity55%
Visibility—
Dew point48°
Sun, 0171° / 49°0Mostly clear
71 °Mostly clear

Thornton, Sunday, 1 November

Mostly clear. High 71°, low 49°.

Pressure29.88 inHg
Wind6.4 mph NW
Humidity52%
Visibility—
Dew point42°
Mon, 0265° / 58°0.01Light rain
65 °Light rain

Thornton, Monday, 2 November

Light rain. High 65°, low 58°.

Pressure30.03 inHg
Wind7.1 mph SE
Humidity52%
Visibility—
Dew point45°
Tue, 0374° / 55°0Mostly clear
74 °Mostly clear

Thornton, Tuesday, 3 November

Mostly clear. High 74°, low 55°.

Pressure30.15 inHg
Wind5.4 mph NW
Humidity53%
Visibility—
Dew point48°
Wed, 0478° / 56°0Clear
78 °Clear

Thornton, Wednesday, 4 November

Clear. High 78°, low 56°.

Pressure30.09 inHg
Wind4.4 mph NW
Humidity52%
Visibility—
Dew point50°
Thu, 0570° / 58°0.5Rain
70 °Rain

Thornton, Thursday, 5 November

Rain. High 70°, low 58°.

Pressure30.00 inHg
Wind17.9 mph SE
Humidity47%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1862° / 44°0.08Climate normal
62 °Climate normal

Thornton, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high62°
Average low44°
Average precipitation0.08 in
Chance of precipitation22%
Record high74° (2019)
Record low33° (1964)
Thu, 1961° / 44°0.09Climate normal
61 °Climate normal

Thornton, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high61°
Average low44°
Average precipitation0.09 in
Chance of precipitation27%
Record high72° (1989)
Record low30° (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.