Monthly outlook for Lytle Creek, CA: average high 84.7°, average low 62.2°. That is 3° below the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 9 August (92.9°), the coolest 16 August (58.7°).
84.7°/62.2°
Average high / low
−3°
Below normal
1 / 0
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.3°
90.4°
-3.9°
19 August – 28 August
87°
90.4°
-1.9°
29 August – 7 September
at normal
91.4°
—
August records over 66 years
109.2°15 August 2020All-time high
50°22 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Rancho Cucamonga (9 mi).
Mon, 1090° / 65°0
90 °
Lytle Creek, Monday, 10 August
Mostly clear. High 90°, low 65°.
Pressure29.94 inHg
Wind10.6 mph S
Humidity23%
Visibility6.2 mi
Dew point48°
Tue, 1188° / 66°0
88 °
Lytle Creek, Tuesday, 11 August
Overcast. High 88°, low 66°.
Pressure29.97 inHg
Wind8.7 mph S
Humidity26%
Visibility6.2 mi
Dew point48°
Wed, 1284° / 62°0
84 °
Lytle Creek, Wednesday, 12 August
Partly cloudy. High 84°, low 62°.
Pressure29.91 inHg
Wind11.1 mph S
Humidity28%
Visibility6.2 mi
Dew point46°
Thu, 1381° / 59°0
81 °
Lytle Creek, Thursday, 13 August
Clear. High 81°, low 59°.
Pressure29.94 inHg
Wind11.5 mph S
Humidity35%
Visibility—
Dew point45°
Fri, 1479° / 61°0
79 °
Lytle Creek, Friday, 14 August
Overcast. High 79°, low 61°.
Pressure29.97 inHg
Wind10.3 mph S
Humidity30%
Visibility—
Dew point42°
Sat, 1572° / 61°0.05
72 °
Lytle Creek, Saturday, 15 August
Light rain. High 72°, low 61°.
Pressure30.06 inHg
Wind5.9 mph SE
Humidity56%
Visibility—
Dew point52°
Sun, 1680° / 59°0
80 °
Lytle Creek, Sunday, 16 August
Overcast. High 80°, low 59°.
Pressure30.09 inHg
Wind11.1 mph S
Humidity48%
Visibility—
Dew point53°
Mon, 1782° / 60°0
82 °
Lytle Creek, Monday, 17 August
Overcast. High 82°, low 60°.
Pressure30.06 inHg
Wind11.1 mph S
Humidity31%
Visibility—
Dew point43°
Tue, 1884° / 61°0
84 °
Lytle Creek, Tuesday, 18 August
Overcast. High 84°, low 61°.
Pressure29.97 inHg
Wind11.4 mph S
Humidity30%
Visibility—
Dew point44°
Wed, 1986° / 62°0
86 °
Lytle Creek, Wednesday, 19 August
Overcast. High 86°, low 62°.
Pressure29.94 inHg
Wind10.4 mph S
Humidity22%
Visibility—
Dew point37°
Thu, 2087° / 62°0
87 °
Lytle Creek, Thursday, 20 August
Partly cloudy. High 87°, low 62°.
Pressure29.97 inHg
Wind10.6 mph S
Humidity19%
Visibility—
Dew point34°
Fri, 2187° / 63°0
87 °
Lytle Creek, Friday, 21 August
Partly cloudy. High 87°, low 63°.
Pressure29.94 inHg
Wind11.2 mph S
Humidity25%
Visibility—
Dew point41°
Sat, 2287° / 64°0
87 °
Lytle Creek, Saturday, 22 August
Clear. High 87°, low 64°.
Pressure29.97 inHg
Wind11.7 mph S
Humidity19%
Visibility—
Dew point35°
Sun, 2387° / 63°0
87 °
Lytle Creek, Sunday, 23 August
Clear. High 87°, low 63°.
Pressure29.94 inHg
Wind12.2 mph S
Humidity23%
Visibility—
Dew point39°
Mon, 2489° / 63°0
89 °
Lytle Creek, Monday, 24 August
Clear. High 89°, low 63°.
Pressure29.91 inHg
Wind10.9 mph SW
Humidity22%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2591° / 66°0
91 °
Lytle Creek, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0 in
Chance of precipitation2%
Record high105° (1985)
Record low57° (1960)
Wed, 2691° / 66°0
91 °
Lytle Creek, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0 in
Chance of precipitation3%
Record high103° (1981)
Record low55° (1990)
Thu, 2792° / 66°0
92 °
Lytle Creek, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high92°
Average low66°
Average precipitation0 in
Chance of precipitation3%
Record high105° (1981)
Record low54° (1973)
Fri, 2893° / 67°0
93 °
Lytle Creek, Friday, 28 August
Climate normal for this date — 60-year average.
Average high93°
Average low67°
Average precipitation0 in
Chance of precipitation0%
Record high104° (1981)
Record low55° (1973)
Sat, 2993° / 67°0
93 °
Lytle Creek, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high93°
Average low67°
Average precipitation0 in
Chance of precipitation2%
Record high104° (1998)
Record low55° (2010)
Sun, 3092° / 68°0
92 °
Lytle Creek, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high92°
Average low68°
Average precipitation0 in
Chance of precipitation0%
Record high106° (2017)
Record low56° (2010)
Mon, 3191° / 66°0
91 °
Lytle Creek, Monday, 31 August
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0 in
Chance of precipitation3%
Record high106° (2022)
Record low55° (1964)
Tue, 0191° / 66°0
91 °
Lytle Creek, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0 in
Chance of precipitation5%
Record high106° (2017)
Record low55° (1964)
Wed, 0291° / 66°0.02
91 °
Lytle Creek, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0.02 in
Chance of precipitation8%
Record high104° (1982)
Record low52° (1964)
Thu, 0391° / 66°0.01
91 °
Lytle Creek, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0.01 in
Chance of precipitation8%
Record high107° (2022)
Record low55° (2000)
Fri, 0491° / 67°0
91 °
Lytle Creek, Friday, 4 September
Climate normal for this date — 60-year average.
Average high91°
Average low67°
Average precipitation0 in
Chance of precipitation2%
Record high106° (2022)
Record low55° (1985)
Sat, 0591° / 67°0.01
91 °
Lytle Creek, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high91°
Average low67°
Average precipitation0.01 in
Chance of precipitation3%
Record high112° (2020)
Record low56° (1970)
Sun, 0691° / 66°0.02
91 °
Lytle Creek, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0.02 in
Chance of precipitation3%
Record high111° (2020)
Record low56° (2000)
Mon, 0791° / 66°0
91 °
Lytle Creek, Monday, 7 September
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0 in
Chance of precipitation3%
Record high106° (2022)
Record low53° (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 Lytle Creek, 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 Lytle Creek, 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.