Monthly outlook for Guasti, CA: average high 70.4°, average low 59.2°. That is 1.3° below the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 8 November (78.7°), the coolest 2 November (49.8°).
70.4°/59.2°
Average high / low
−1.3°
Below normal
4 / 2
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
70.3°
73.9°
-2°
9 November – 18 November
70.5°
70.3°
+0.1°
19 November – 28 November
at normal
67.4°
—
October records over 66 years
105.4°1 October 2020All-time high
31.5°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Ontario (2 mi).
Sat, 3167° / 56°0.3
67 °
Guasti, Saturday, 31 October
Rain. High 67°, low 56°.
Pressure29.97 inHg
Wind3 mph SE
Humidity64%
Visibility6.2 mi
Dew point50°
Sun, 0164° / 53°0.55
64 °
Guasti, Sunday, 1 November
Rain. High 64°, low 53°.
Pressure29.91 inHg
Wind5.5 mph W
Humidity72%
Visibility6.2 mi
Dew point54°
Mon, 0267° / 50°0
67 °
Guasti, Monday, 2 November
Partly cloudy. High 67°, low 50°.
Pressure30.09 inHg
Wind3 mph S
Humidity65%
Visibility6.2 mi
Dew point53°
Tue, 0371° / 55°0
71 °
Guasti, Tuesday, 3 November
Clear. High 71°, low 55°.
Pressure30.06 inHg
Wind2 mph S
Humidity49%
Visibility6.2 mi
Dew point50°
Wed, 0467° / 58°0
67 °
Guasti, Wednesday, 4 November
Clear. High 67°, low 58°.
Pressure29.97 inHg
Wind5.6 mph W
Humidity46%
Visibility—
Dew point43°
Thu, 0569° / 59°0.03
69 °
Guasti, Thursday, 5 November
Light rain. High 69°, low 59°.
Pressure29.83 inHg
Wind8.1 mph SW
Humidity60%
Visibility—
Dew point51°
Fri, 0673° / 61°0
73 °
Guasti, Friday, 6 November
Clear. High 73°, low 61°.
Pressure29.83 inHg
Wind7.4 mph SW
Humidity52%
Visibility—
Dew point49°
Sat, 0779° / 64°0
79 °
Guasti, Saturday, 7 November
Clear. High 79°, low 64°.
Pressure29.91 inHg
Wind4.9 mph W
Humidity26%
Visibility—
Dew point35°
Sun, 0879° / 66°0
79 °
Guasti, Sunday, 8 November
Partly cloudy. High 79°, low 66°.
Pressure30.00 inHg
Wind7.7 mph W
Humidity12%
Visibility—
Dew point18°
Mon, 0972° / 65°0
72 °
Guasti, Monday, 9 November
Overcast. High 72°, low 65°.
Pressure30.06 inHg
Wind7.3 mph W
Humidity44%
Visibility—
Dew point46°
Tue, 1071° / 62°0
71 °
Guasti, Tuesday, 10 November
Clear. High 71°, low 62°.
Pressure30.06 inHg
Wind9.2 mph SW
Humidity55%
Visibility—
Dew point50°
Wed, 1163° / 59°0.36
63 °
Guasti, Wednesday, 11 November
Rain. High 63°, low 59°.
Pressure29.97 inHg
Wind16.1 mph SW
Humidity77%
Visibility—
Dew point55°
Thu, 1268° / 56°0
68 °
Guasti, Thursday, 12 November
Mostly clear. High 68°, low 56°.
Pressure29.97 inHg
Wind6 mph NE
Humidity49%
Visibility—
Dew point43°
Fri, 1374° / 59°0
74 °
Guasti, Friday, 13 November
Clear. High 74°, low 59°.
Pressure30.06 inHg
Wind5.1 mph NE
Humidity21%
Visibility—
Dew point26°
Sat, 1474° / 63°0
74 °
Guasti, Saturday, 14 November
Partly cloudy. High 74°, low 63°.
Pressure30.09 inHg
Wind7.8 mph W
Humidity14%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1570° / 47°0.06
70 °
Guasti, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.06 in
Chance of precipitation12%
Record high88° (2021)
Record low33° (1964)
Mon, 1669° / 48°0.06
69 °
Guasti, Monday, 16 November
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0.06 in
Chance of precipitation17%
Record high88° (2020)
Record low33° (1964)
Tue, 1769° / 48°0.04
69 °
Guasti, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0.04 in
Chance of precipitation15%
Record high90° (2019)
Record low35° (1971)
Wed, 1869° / 47°0.08
69 °
Guasti, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.08 in
Chance of precipitation22%
Record high88° (2019)
Record low32° (1964)
Thu, 1969° / 46°0.06
69 °
Guasti, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high69°
Average low46°
Average precipitation0.06 in
Chance of precipitation8%
Record high86° (2006)
Record low29° (1964)
Fri, 2069° / 46°0.07
69 °
Guasti, Friday, 20 November
Climate normal for this date — 60-year average.
Average high69°
Average low46°
Average precipitation0.07 in
Chance of precipitation13%
Record high85° (2006)
Record low31° (1964)
Sat, 2167° / 46°0.12
67 °
Guasti, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.12 in
Chance of precipitation23%
Record high90° (2017)
Record low31° (1979)
Sun, 2267° / 46°0.07
67 °
Guasti, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.07 in
Chance of precipitation15%
Record high93° (2017)
Record low31° (1979)
Mon, 2368° / 45°0.01
68 °
Guasti, Monday, 23 November
Climate normal for this date — 60-year average.
Average high68°
Average low45°
Average precipitation0.01 in
Chance of precipitation8%
Record high92° (2017)
Record low34° (2003)
Tue, 2468° / 45°0.04
68 °
Guasti, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high68°
Average low45°
Average precipitation0.04 in
Chance of precipitation15%
Record high88° (2017)
Record low35° (1972)
Wed, 2567° / 44°0.07
67 °
Guasti, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high67°
Average low44°
Average precipitation0.07 in
Chance of precipitation15%
Record high88° (2017)
Record low30° (1973)
Thu, 2667° / 45°0.08
67 °
Guasti, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.08 in
Chance of precipitation18%
Record high86° (1977)
Record low31° (2010)
Fri, 2766° / 44°0.05
66 °
Guasti, Friday, 27 November
Climate normal for this date — 60-year average.
Average high66°
Average low44°
Average precipitation0.05 in
Chance of precipitation18%
Record high86° (2014)
Record low32° (1994)
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)
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.