As of 16:35 PDT

Weather in Collinsville, CA

89°Current weather

Collinsville, Saturday, 17 October, 16:35

Clear. Feels like 85°. High 89°, low 55°.

Pressure29.94 inHg
Wind2.6 mph W
Humidity23%
Visibility6.2 mi
Dew point46°

Monthly outlook for Collinsville, CA: average high 71.4°, average low 54°. That is 0.3° below the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 17 October (89.1°), the coolest 19 October (44°).

71.4°/54°
Average high / low
−0.3°
Below normal
3 / 2
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October73.9°73.3°+0.3°
27 October – 5 November67.1°68.9°-1°
6 November – 15 Novemberat normal64.5°—

October records over 66 years

104.9°2 October 2024All-time high
39.9°30 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Antioch (7 mi).

Sun, 1880° / 49°0Clear
80 °Clear

Collinsville, Sunday, 18 October

Clear. High 80°, low 49°.

Pressure29.97 inHg
Wind10.2 mph W
Humidity44%
Visibility6.2 mi
Dew point53°
Mon, 1967° / 44°0Partly cloudy
67 °Partly cloudy

Collinsville, Monday, 19 October

Partly cloudy. High 67°, low 44°.

Pressure29.94 inHg
Wind12.1 mph SW
Humidity44%
Visibility6.2 mi
Dew point42°
Tue, 2065° / 51°0.04Light rain
65 °Light rain

Collinsville, Tuesday, 20 October

Light rain. High 65°, low 51°.

Pressure29.88 inHg
Wind3.8 mph W
Humidity55%
Visibility6.2 mi
Dew point46°
Wed, 2171° / 55°0.39Rain
71 °Rain

Collinsville, Wednesday, 21 October

Rain. High 71°, low 55°.

Pressure29.94 inHg
Wind3 mph SE
Humidity59%
Visibility6.2 mi
Dew point51°
Thu, 2273° / 53°0Clear
73 °Clear

Collinsville, Thursday, 22 October

Clear. High 73°, low 53°.

Pressure30.00 inHg
Wind11.1 mph W
Humidity64%
Visibility—
Dew point51°
Fri, 2372° / 56°0Clear
72 °Clear

Collinsville, Friday, 23 October

Clear. High 72°, low 56°.

Pressure30.03 inHg
Wind11.3 mph SW
Humidity61%
Visibility—
Dew point50°
Sat, 2473° / 56°0Clear
73 °Clear

Collinsville, Saturday, 24 October

Clear. High 73°, low 56°.

Pressure30.03 inHg
Wind4.6 mph W
Humidity56%
Visibility—
Dew point48°
Sun, 2572° / 59°0Overcast
72 °Overcast

Collinsville, Sunday, 25 October

Overcast. High 72°, low 59°.

Pressure29.94 inHg
Wind5.1 mph NE
Humidity54%
Visibility—
Dew point47°
Mon, 2676° / 61°0Overcast
76 °Overcast

Collinsville, Monday, 26 October

Overcast. High 76°, low 61°.

Pressure29.77 inHg
Wind9.2 mph SW
Humidity34%
Visibility—
Dew point39°
Tue, 2772° / 59°0Overcast
72 °Overcast

Collinsville, Tuesday, 27 October

Overcast. High 72°, low 59°.

Pressure29.80 inHg
Wind13.1 mph SW
Humidity51%
Visibility—
Dew point47°
Wed, 2871° / 56°0.01Light rain
71 °Light rain

Collinsville, Wednesday, 28 October

Light rain. High 71°, low 56°.

Pressure30.06 inHg
Wind15 mph SW
Humidity50%
Visibility—
Dew point46°
Thu, 2965° / 52°0Overcast
65 °Overcast

Collinsville, Thursday, 29 October

Overcast. High 65°, low 52°.

Pressure30.09 inHg
Wind10.2 mph W
Humidity50%
Visibility—
Dew point40°
Fri, 3067° / 53°0.04Light rain
67 °Light rain

Collinsville, Friday, 30 October

Light rain. High 67°, low 53°.

Pressure30.03 inHg
Wind8.1 mph SW
Humidity51%
Visibility—
Dew point42°
Sat, 3166° / 54°0.29Rain
66 °Rain

Collinsville, Saturday, 31 October

Rain. High 66°, low 54°.

Pressure29.91 inHg
Wind14.5 mph W
Humidity67%
Visibility—
Dew point54°
Sun, 0163° / 50°0Clear
63 °Clear

Collinsville, Sunday, 1 November

Clear. High 63°, low 50°.

Pressure30.18 inHg
Wind5.9 mph W
Humidity51%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0269° / 52°0.04Climate normal
69 °Climate normal

Collinsville, Monday, 2 November

Climate normal for this date — 60-year average.

Average high69°
Average low52°
Average precipitation0.04 in
Chance of precipitation12%
Record high83° (1967)
Record low42° (2003)
Tue, 0369° / 51°0.04Climate normal
69 °Climate normal

Collinsville, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high69°
Average low51°
Average precipitation0.04 in
Chance of precipitation12%
Record high83° (2018)
Record low41° (2022)
Wed, 0468° / 51°0.03Climate normal
68 °Climate normal

Collinsville, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high68°
Average low51°
Average precipitation0.03 in
Chance of precipitation10%
Record high80° (2018)
Record low40° (1973)
Thu, 0568° / 50°0.06Climate normal
68 °Climate normal

Collinsville, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high68°
Average low50°
Average precipitation0.06 in
Chance of precipitation13%
Record high81° (2020)
Record low43° (2011)
Fri, 0667° / 51°0.04Climate normal
67 °Climate normal

Collinsville, Friday, 6 November

Climate normal for this date — 60-year average.

Average high67°
Average low51°
Average precipitation0.04 in
Chance of precipitation15%
Record high78° (1991)
Record low44° (1972)
Sat, 0767° / 50°0.06Climate normal
67 °Climate normal

Collinsville, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high67°
Average low50°
Average precipitation0.06 in
Chance of precipitation18%
Record high78° (1991)
Record low40° (1971)
Sun, 0865° / 49°0.06Climate normal
65 °Climate normal

Collinsville, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.06 in
Chance of precipitation17%
Record high77° (1990)
Record low42° (2011)
Mon, 0965° / 49°0.07Climate normal
65 °Climate normal

Collinsville, Monday, 9 November

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.07 in
Chance of precipitation20%
Record high76° (1990)
Record low39° (2020)
Tue, 1064° / 49°0.11Climate normal
64 °Climate normal

Collinsville, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high64°
Average low49°
Average precipitation0.11 in
Chance of precipitation32%
Record high76° (1990)
Record low41° (1994)
Wed, 1164° / 49°0.09Climate normal
64 °Climate normal

Collinsville, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high64°
Average low49°
Average precipitation0.09 in
Chance of precipitation28%
Record high76° (2019)
Record low40° (1978)
Thu, 1264° / 48°0.07Climate normal
64 °Climate normal

Collinsville, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high64°
Average low48°
Average precipitation0.07 in
Chance of precipitation18%
Record high76° (1990)
Record low36° (1985)
Fri, 1364° / 49°0.13Climate normal
64 °Climate normal

Collinsville, Friday, 13 November

Climate normal for this date — 60-year average.

Average high64°
Average low49°
Average precipitation0.13 in
Chance of precipitation32%
Record high77° (1995)
Record low35° (2000)
Sat, 1464° / 48°0.06Climate normal
64 °Climate normal

Collinsville, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high64°
Average low48°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (2008)
Record low37° (2000)
Sun, 1563° / 48°0.06Climate normal
63 °Climate normal

Collinsville, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high63°
Average low48°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (2010)
Record low37° (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 Collinsville, 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 Collinsville, 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.