Monthly outlook for Rialto, CA: average high 74.2°, average low 59.3°. That is 2° above the climate normal for November. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 8 November (82.6°), the coolest 4 November (46.7°).
74.2°/59.3°
Average high / low
+2°
Above normal
3 / 2
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
2 November – 11 November
74.9°
71.8°
+1.7°
12 November – 21 November
73.1°
68.1°
+2.8°
22 November – 1 December
at normal
64.7°
—
November records over 66 years
92.1°3 November 2010All-time high
20.3°19 November 1964All-time low
Tue, 0373° / 50°0
73 °
Rialto, Tuesday, 3 November
Overcast. High 73°, low 50°.
Pressure30.06 inHg
Wind3 mph S
Humidity49%
Visibility6.2 mi
Dew point45°
Wed, 0467° / 47°0
67 °
Rialto, Wednesday, 4 November
Clear. High 67°, low 47°.
Pressure29.91 inHg
Wind1.4 mph SE
Humidity42%
Visibility6.2 mi
Dew point42°
Thu, 0572° / 51°0
72 °
Rialto, Thursday, 5 November
Clear. High 72°, low 51°.
Pressure29.97 inHg
Wind6.3 mph N
Humidity28%
Visibility6.2 mi
Dew point37°
Fri, 0674° / 56°0
74 °
Rialto, Friday, 6 November
Clear. High 74°, low 56°.
Pressure30.06 inHg
Wind11.6 mph N
Humidity26%
Visibility—
Dew point33°
Sat, 0778° / 57°0
78 °
Rialto, Saturday, 7 November
Clear. High 78°, low 57°.
Pressure30.03 inHg
Wind9.4 mph N
Humidity22%
Visibility—
Dew point31°
Sun, 0883° / 66°0
83 °
Rialto, Sunday, 8 November
Clear. High 83°, low 66°.
Pressure30.00 inHg
Wind6 mph N
Humidity12%
Visibility—
Dew point20°
Mon, 0975° / 67°0
75 °
Rialto, Monday, 9 November
Overcast. High 75°, low 67°.
Pressure30.00 inHg
Wind3.3 mph SW
Humidity15%
Visibility—
Dew point23°
Tue, 1076° / 65°0
76 °
Rialto, Tuesday, 10 November
Overcast. High 76°, low 65°.
Pressure30.06 inHg
Wind7 mph SW
Humidity27%
Visibility—
Dew point36°
Wed, 1178° / 63°0
78 °
Rialto, Wednesday, 11 November
Clear. High 78°, low 63°.
Pressure30.12 inHg
Wind5.9 mph W
Humidity33%
Visibility—
Dew point41°
Thu, 1279° / 65°0
79 °
Rialto, Thursday, 12 November
Clear. High 79°, low 65°.
Pressure30.06 inHg
Wind5.1 mph NE
Humidity29%
Visibility—
Dew point39°
Fri, 1376° / 66°0
76 °
Rialto, Friday, 13 November
Overcast. High 76°, low 66°.
Pressure29.94 inHg
Wind9.2 mph SW
Humidity26%
Visibility—
Dew point37°
Sat, 1469° / 62°0.31
69 °
Rialto, Saturday, 14 November
Light rain. High 69°, low 62°.
Pressure30.12 inHg
Wind6 mph NW
Humidity50%
Visibility—
Dew point49°
Sun, 1567° / 60°0.35
67 °
Rialto, Sunday, 15 November
Rain. High 67°, low 60°.
Pressure30.12 inHg
Wind5.3 mph NE
Humidity64%
Visibility—
Dew point54°
Mon, 1673° / 60°0.08
73 °
Rialto, Monday, 16 November
Light rain. High 73°, low 60°.
Pressure30.03 inHg
Wind5.1 mph NE
Humidity49%
Visibility—
Dew point48°
Tue, 1775° / 63°0
75 °
Rialto, Tuesday, 17 November
Clear. High 75°, low 63°.
Pressure30.00 inHg
Wind6.5 mph SW
Humidity40%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1867° / 45°0.07
67 °
Rialto, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.07 in
Chance of precipitation22%
Record high87° (2019)
Record low27° (1964)
Thu, 1968° / 44°0.06
68 °
Rialto, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high68°
Average low44°
Average precipitation0.06 in
Chance of precipitation8%
Record high84° (2006)
Record low20° (1964)
Fri, 2067° / 44°0.08
67 °
Rialto, Friday, 20 November
Climate normal for this date — 60-year average.
Average high67°
Average low44°
Average precipitation0.08 in
Chance of precipitation13%
Record high83° (2006)
Record low22° (1964)
Sat, 2166° / 46°0.11
66 °
Rialto, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high66°
Average low46°
Average precipitation0.11 in
Chance of precipitation25%
Record high88° (2017)
Record low29° (1979)
Sun, 2265° / 45°0.06
65 °
Rialto, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high65°
Average low45°
Average precipitation0.06 in
Chance of precipitation15%
Record high90° (2017)
Record low30° (1979)
Mon, 2366° / 44°0.01
66 °
Rialto, Monday, 23 November
Climate normal for this date — 60-year average.
Average high66°
Average low44°
Average precipitation0.01 in
Chance of precipitation8%
Record high90° (2017)
Record low32° (2003)
Tue, 2466° / 43°0.04
66 °
Rialto, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high66°
Average low43°
Average precipitation0.04 in
Chance of precipitation13%
Record high85° (2017)
Record low32° (2003)
Wed, 2566° / 43°0.07
66 °
Rialto, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high66°
Average low43°
Average precipitation0.07 in
Chance of precipitation13%
Record high86° (2017)
Record low30° (1973)
Thu, 2665° / 43°0.08
65 °
Rialto, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high65°
Average low43°
Average precipitation0.08 in
Chance of precipitation18%
Record high85° (1977)
Record low29° (2010)
Fri, 2764° / 42°0.05
64 °
Rialto, Friday, 27 November
Climate normal for this date — 60-year average.
Average high64°
Average low42°
Average precipitation0.05 in
Chance of precipitation17%
Record high84° (2014)
Record low30° (1994)
Sat, 2864° / 41°0.11
64 °
Rialto, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high64°
Average low41°
Average precipitation0.11 in
Chance of precipitation18%
Record high83° (2021)
Record low29° (1976)
Sun, 2963° / 42°0.14
63 °
Rialto, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high63°
Average low42°
Average precipitation0.14 in
Chance of precipitation15%
Record high84° (2021)
Record low30° (2004)
Mon, 3063° / 42°0.08
63 °
Rialto, Monday, 30 November
Climate normal for this date — 60-year average.
Average high63°
Average low42°
Average precipitation0.08 in
Chance of precipitation22%
Record high83° (2021)
Record low28° (2004)
Tue, 0164° / 42°0.02
64 °
Rialto, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high64°
Average low42°
Average precipitation0.02 in
Chance of precipitation12%
Record high83° (2021)
Record low28° (2004)
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 Rialto, 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 Rialto, 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.