Monthly outlook for Rialto, CA: average high 70.5°, average low 56.4°. That is 0.3° below the climate normal for November. Precipitation is expected on 4 days (about 3.0 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 7 November (80.6°), the coolest 4 November (46°).
70.5°/56.4°
Average high / low
−0.3°
Below normal
4 / 2
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
1 November – 10 November
72.8°
72.2°
+0.3°
11 November – 20 November
66.7°
68.5°
-1°
21 November – 30 November
at normal
64.9°
—
November records over 66 years
92.1°3 November 2010All-time high
20.3°19 November 1964All-time low
Mon, 0272° / 50°0
72 °
Rialto, Monday, 2 November
Mostly clear. High 72°, low 50°.
Pressure30.09 inHg
Wind1 mph NE
Humidity39%
Visibility6.2 mi
Dew point40°
Tue, 0366° / 48°0
66 °
Rialto, Tuesday, 3 November
Clear. High 66°, low 48°.
Pressure30.06 inHg
Wind2.7 mph S
Humidity42%
Visibility6.2 mi
Dew point42°
Wed, 0467° / 46°0
67 °
Rialto, Wednesday, 4 November
Clear. High 67°, low 46°.
Pressure29.91 inHg
Wind1.2 mph E
Humidity43%
Visibility6.2 mi
Dew point43°
Thu, 0571° / 50°0
71 °
Rialto, Thursday, 5 November
Mostly clear. High 71°, low 50°.
Pressure29.97 inHg
Wind6.4 mph N
Humidity35%
Visibility—
Dew point37°
Fri, 0675° / 52°0
75 °
Rialto, Friday, 6 November
Clear. High 75°, low 52°.
Pressure30.06 inHg
Wind7.1 mph N
Humidity29%
Visibility—
Dew point35°
Sat, 0781° / 60°0
81 °
Rialto, Saturday, 7 November
Clear. High 81°, low 60°.
Pressure30.03 inHg
Wind5.8 mph N
Humidity21%
Visibility—
Dew point31°
Sun, 0878° / 66°0
78 °
Rialto, Sunday, 8 November
Overcast. High 78°, low 66°.
Pressure30.00 inHg
Wind5.9 mph SW
Humidity21%
Visibility—
Dew point31°
Mon, 0977° / 66°0
77 °
Rialto, Monday, 9 November
Partly cloudy. High 77°, low 66°.
Pressure30.06 inHg
Wind5.3 mph W
Humidity26%
Visibility—
Dew point36°
Tue, 1078° / 65°0
78 °
Rialto, Tuesday, 10 November
Overcast. High 78°, low 65°.
Pressure30.15 inHg
Wind5.4 mph W
Humidity34%
Visibility—
Dew point43°
Wed, 1179° / 65°0
79 °
Rialto, Wednesday, 11 November
Clear. High 79°, low 65°.
Pressure30.12 inHg
Wind6 mph SW
Humidity31%
Visibility—
Dew point41°
Thu, 1272° / 60°0.04
72 °
Rialto, Thursday, 12 November
Light rain. High 72°, low 60°.
Pressure29.97 inHg
Wind11.8 mph SW
Humidity54%
Visibility—
Dew point51°
Fri, 1364° / 58°0.53
64 °
Rialto, Friday, 13 November
Rain. High 64°, low 58°.
Pressure29.88 inHg
Wind10.4 mph SW
Humidity69%
Visibility—
Dew point51°
Sat, 1460° / 55°1.94
60 °
Rialto, Saturday, 14 November
Heavy rain. High 60°, low 55°.
Pressure29.85 inHg
Wind19.8 mph SW
Humidity84%
Visibility—
Dew point51°
Sun, 1560° / 54°0.05
60 °
Rialto, Sunday, 15 November
Light rain. High 60°, low 54°.
Pressure30.00 inHg
Wind11.6 mph SW
Humidity71%
Visibility—
Dew point48°
Mon, 1665° / 53°0.01
65 °
Rialto, Monday, 16 November
Light rain. High 65°, low 53°.
Pressure30.06 inHg
Wind4.2 mph E
Humidity49%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1767° / 47°0.04
67 °
Rialto, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high67°
Average low47°
Average precipitation0.04 in
Chance of precipitation15%
Record high86° (2008)
Record low32° (2000)
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)
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.