Monthly outlook for Colusa, CA: average high 72.5°, average low 52.2°. That is 0.7° below the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 25 October (82.4°), the coolest 3 November (46.5°).
72.5°/52.2°
Average high / low
−0.7°
Below normal
2 / 2
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
76.5°
75.4°
+0.6°
29 October – 7 November
65.9°
70.4°
-2.5°
8 November – 17 November
at normal
64.9°
—
October records over 66 years
106.5°1 October 2020All-time high
36.5°27 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Williams (8 mi).
Tue, 2073° / 47°0.06
73 °
Colusa, Tuesday, 20 October
Light rain. High 73°, low 47°.
Pressure29.94 inHg
Wind3.5 mph N
Humidity41%
Visibility6.2 mi
Dew point40°
Wed, 2177° / 59°0.02
77 °
Colusa, Wednesday, 21 October
Light rain. High 77°, low 59°.
Pressure29.85 inHg
Wind5 mph NE
Humidity35%
Visibility6.2 mi
Dew point46°
Thu, 2275° / 56°0
75 °
Colusa, Thursday, 22 October
Clear. High 75°, low 56°.
Pressure29.91 inHg
Wind1.2 mph N
Humidity49%
Visibility6.2 mi
Dew point51°
Fri, 2374° / 53°0
74 °
Colusa, Friday, 23 October
Clear. High 74°, low 53°.
Pressure30.12 inHg
Wind13 mph N
Humidity61%
Visibility—
Dew point49°
Sat, 2476° / 52°0
76 °
Colusa, Saturday, 24 October
Clear. High 76°, low 52°.
Pressure30.03 inHg
Wind10.2 mph N
Humidity28%
Visibility—
Dew point29°
Sun, 2582° / 55°0
82 °
Colusa, Sunday, 25 October
Overcast. High 82°, low 55°.
Pressure30.09 inHg
Wind7.7 mph N
Humidity18%
Visibility—
Dew point23°
Mon, 2679° / 57°0
79 °
Colusa, Monday, 26 October
Overcast. High 79°, low 57°.
Pressure29.91 inHg
Wind6.3 mph N
Humidity18%
Visibility—
Dew point22°
Tue, 2781° / 57°0
81 °
Colusa, Tuesday, 27 October
Overcast. High 81°, low 57°.
Pressure29.91 inHg
Wind6 mph N
Humidity19%
Visibility—
Dew point24°
Wed, 2876° / 55°0
76 °
Colusa, Wednesday, 28 October
Overcast. High 76°, low 55°.
Pressure29.94 inHg
Wind11.7 mph SE
Humidity27%
Visibility—
Dew point30°
Thu, 2971° / 51°0
71 °
Colusa, Thursday, 29 October
Partly cloudy. High 71°, low 51°.
Pressure29.94 inHg
Wind9 mph S
Humidity52%
Visibility—
Dew point44°
Fri, 3065° / 52°0
65 °
Colusa, Friday, 30 October
Overcast. High 65°, low 52°.
Pressure29.91 inHg
Wind4.8 mph NW
Humidity49%
Visibility—
Dew point38°
Sat, 3170° / 48°0
70 °
Colusa, Saturday, 31 October
Clear. High 70°, low 48°.
Pressure30.03 inHg
Wind8.8 mph N
Humidity41%
Visibility—
Dew point36°
Sun, 0169° / 49°0
69 °
Colusa, Sunday, 1 November
Partly cloudy. High 69°, low 49°.
Pressure30.03 inHg
Wind11.5 mph N
Humidity44%
Visibility—
Dew point37°
Mon, 0267° / 48°0
67 °
Colusa, Monday, 2 November
Overcast. High 67°, low 48°.
Pressure30.12 inHg
Wind13.2 mph S
Humidity42%
Visibility—
Dew point34°
Tue, 0355° / 46°0.14
55 °
Colusa, Tuesday, 3 November
Light rain. High 55°, low 46°.
Pressure30.03 inHg
Wind19.7 mph SE
Humidity80%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0471° / 50°0.03
71 °
Colusa, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high71°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high82° (1976)
Record low38° (1973)
Thu, 0570° / 50°0.07
70 °
Colusa, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high70°
Average low50°
Average precipitation0.07 in
Chance of precipitation15%
Record high84° (2020)
Record low39° (2017)
Fri, 0669° / 51°0.04
69 °
Colusa, Friday, 6 November
Climate normal for this date — 60-year average.
Average high69°
Average low51°
Average precipitation0.04 in
Chance of precipitation15%
Record high83° (1991)
Record low41° (1998)
Sat, 0768° / 49°0.09
68 °
Colusa, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high68°
Average low49°
Average precipitation0.09 in
Chance of precipitation22%
Record high82° (1991)
Record low38° (2017)
Sun, 0867° / 48°0.09
67 °
Colusa, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high67°
Average low48°
Average precipitation0.09 in
Chance of precipitation20%
Record high81° (2019)
Record low40° (2024)
Mon, 0966° / 47°0.11
66 °
Colusa, Monday, 9 November
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.11 in
Chance of precipitation23%
Record high81° (1990)
Record low36° (1998)
Tue, 1065° / 47°0.13
65 °
Colusa, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.13 in
Chance of precipitation33%
Record high81° (1990)
Record low31° (2020)
Wed, 1165° / 47°0.13
65 °
Colusa, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.13 in
Chance of precipitation25%
Record high85° (2019)
Record low35° (2000)
Thu, 1265° / 47°0.07
65 °
Colusa, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.07 in
Chance of precipitation20%
Record high78° (1990)
Record low34° (1978)
Fri, 1365° / 48°0.14
65 °
Colusa, Friday, 13 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.14 in
Chance of precipitation33%
Record high81° (1995)
Record low29° (1985)
Sat, 1465° / 47°0.06
65 °
Colusa, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.06 in
Chance of precipitation20%
Record high79° (1995)
Record low31° (2018)
Sun, 1564° / 47°0.07
64 °
Colusa, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.07 in
Chance of precipitation20%
Record high78° (2008)
Record low32° (2018)
Mon, 1664° / 47°0.12
64 °
Colusa, Monday, 16 November
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.12 in
Chance of precipitation25%
Record high79° (2019)
Record low34° (2000)
Tue, 1764° / 46°0.13
64 °
Colusa, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high64°
Average low46°
Average precipitation0.13 in
Chance of precipitation25%
Record high79° (2019)
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 Colusa, 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 Colusa, 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.