Monthly outlook for Guasti, CA: average high 66.3°, average low 56.2°. That is 1.3° below the climate normal for November. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 2 days and 0.9 inches. The warmest day looks like 12 November (80.3°), the coolest 17 November (47.5°).
66.3°/56.2°
Average high / low
−1.3°
Below normal
4 / 2
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
64.5°
69.5°
-2.8°
22 November – 1 December
69.2°
66.4°
+1.6°
2 December – 11 December
at normal
64.6°
—
November records over 66 years
94.1°5 November 2020All-time high
28.8°19 November 1964All-time low
Climate normals and records are computed from the nearest reference point — Ontario (2 mi).
Fri, 1367° / 53°0.67
67 °
Guasti, Friday, 13 November
Heavy rain. High 67°, low 53°.
Pressure29.83 inHg
Wind5.6 mph W
Humidity69%
Visibility4.8 mi
Dew point50°
Sat, 1462° / 52°0.21
62 °
Guasti, Saturday, 14 November
Heavy rain. High 62°, low 52°.
Pressure29.94 inHg
Wind3.2 mph SE
Humidity61%
Visibility6.2 mi
Dew point48°
Sun, 1565° / 52°0
65 °
Guasti, Sunday, 15 November
Clear. High 65°, low 52°.
Pressure30.06 inHg
Wind1.3 mph SW
Humidity58%
Visibility6.2 mi
Dew point49°
Mon, 1659° / 51°0.36
59 °
Guasti, Monday, 16 November
Rain. High 59°, low 51°.
Pressure30.03 inHg
Wind3.8 mph SW
Humidity77%
Visibility—
Dew point51°
Tue, 1755° / 47°0.8
55 °
Guasti, Tuesday, 17 November
Rain. High 55°, low 47°.
Pressure29.85 inHg
Wind7.1 mph SE
Humidity86%
Visibility—
Dew point46°
Wed, 1864° / 57°0.03
64 °
Guasti, Wednesday, 18 November
Light rain. High 64°, low 57°.
Pressure30.09 inHg
Wind7.2 mph W
Humidity65%
Visibility—
Dew point48°
Thu, 1966° / 56°0
66 °
Guasti, Thursday, 19 November
Mostly clear. High 66°, low 56°.
Pressure30.12 inHg
Wind6.7 mph SW
Humidity57%
Visibility—
Dew point46°
Fri, 2061° / 57°0.02
61 °
Guasti, Friday, 20 November
Light rain. High 61°, low 57°.
Pressure30.00 inHg
Wind10.2 mph SW
Humidity68%
Visibility—
Dew point48°
Sat, 2165° / 56°0
65 °
Guasti, Saturday, 21 November
Overcast. High 65°, low 56°.
Pressure30.06 inHg
Wind3.9 mph SE
Humidity51%
Visibility—
Dew point42°
Sun, 2265° / 57°0
65 °
Guasti, Sunday, 22 November
Overcast. High 65°, low 57°.
Pressure30.09 inHg
Wind6.6 mph SW
Humidity42%
Visibility—
Dew point38°
Mon, 2363° / 59°0
63 °
Guasti, Monday, 23 November
Overcast. High 63°, low 59°.
Pressure30.09 inHg
Wind6 mph SE
Humidity59%
Visibility—
Dew point46°
Tue, 2472° / 58°0
72 °
Guasti, Tuesday, 24 November
Overcast. High 72°, low 58°.
Pressure30.03 inHg
Wind5.3 mph E
Humidity35%
Visibility—
Dew point37°
Wed, 2573° / 63°0
73 °
Guasti, Wednesday, 25 November
Overcast. High 73°, low 63°.
Pressure30.03 inHg
Wind4.1 mph NE
Humidity26%
Visibility—
Dew point32°
Thu, 2673° / 61°0
73 °
Guasti, Thursday, 26 November
Clear. High 73°, low 61°.
Pressure30.03 inHg
Wind7.3 mph SW
Humidity25%
Visibility—
Dew point31°
Fri, 2769° / 60°0
69 °
Guasti, Friday, 27 November
Partly cloudy. High 69°, low 60°.
Pressure30.12 inHg
Wind7.3 mph SW
Humidity51%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2865° / 43°0.11
65 °
Guasti, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high65°
Average low43°
Average precipitation0.11 in
Chance of precipitation18%
Record high83° (1980)
Record low32° (1976)
Sun, 2965° / 44°0.14
65 °
Guasti, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high65°
Average low44°
Average precipitation0.14 in
Chance of precipitation15%
Record high83° (2021)
Record low31° (2010)
Mon, 3065° / 43°0.08
65 °
Guasti, Monday, 30 November
Climate normal for this date — 60-year average.
Average high65°
Average low43°
Average precipitation0.08 in
Chance of precipitation22%
Record high86° (2021)
Record low30° (2004)
Tue, 0166° / 43°0.02
66 °
Guasti, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high66°
Average low43°
Average precipitation0.02 in
Chance of precipitation12%
Record high86° (2021)
Record low29° (2004)
Wed, 0265° / 43°0.03
65 °
Guasti, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high65°
Average low43°
Average precipitation0.03 in
Chance of precipitation13%
Record high81° (2017)
Record low31° (2004)
Thu, 0366° / 44°0.09
66 °
Guasti, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high66°
Average low44°
Average precipitation0.09 in
Chance of precipitation17%
Record high78° (1979)
Record low33° (2004)
Fri, 0465° / 43°0.1
65 °
Guasti, Friday, 4 December
Climate normal for this date — 60-year average.
Average high65°
Average low43°
Average precipitation0.1 in
Chance of precipitation20%
Record high82° (1979)
Record low31° (2011)
Sat, 0565° / 43°0.08
65 °
Guasti, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high65°
Average low43°
Average precipitation0.08 in
Chance of precipitation20%
Record high81° (1979)
Record low32° (2011)
Sun, 0665° / 44°0.11
65 °
Guasti, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high65°
Average low44°
Average precipitation0.11 in
Chance of precipitation18%
Record high81° (1979)
Record low30° (2011)
Mon, 0764° / 44°0.13
64 °
Guasti, Monday, 7 December
Climate normal for this date — 60-year average.
Average high64°
Average low44°
Average precipitation0.13 in
Chance of precipitation28%
Record high78° (1979)
Record low27° (1978)
Tue, 0864° / 43°0.04
64 °
Guasti, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high64°
Average low43°
Average precipitation0.04 in
Chance of precipitation22%
Record high81° (2015)
Record low26° (1978)
Wed, 0964° / 42°0.03
64 °
Guasti, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high64°
Average low42°
Average precipitation0.03 in
Chance of precipitation15%
Record high81° (2025)
Record low27° (1978)
Thu, 1064° / 42°0.04
64 °
Guasti, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high64°
Average low42°
Average precipitation0.04 in
Chance of precipitation8%
Record high83° (2025)
Record low30° (1998)
Fri, 1163° / 43°0.07
63 °
Guasti, Friday, 11 December
Climate normal for this date — 60-year average.
Average high63°
Average low43°
Average precipitation0.07 in
Chance of precipitation20%
Record high81° (2025)
Record low30° (1985)
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 Guasti, 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 Guasti, 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.