Monthly outlook for La Crescenta-Montrose, CA: average high 92.5°, average low 72.4°. That is 2.6° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 24 August (103.5°), the coolest 14 August (62.1°).
92.5°/72.4°
Average high / low
+2.6°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
88.4°
88.1°
+0.1°
19 August – 28 August
99.3°
88.1°
+6.2°
29 August – 7 September
at normal
89.2°
—
August records over 66 years
105.4°5 August 1997All-time high
50.7°27 August 1973All-time low
Mon, 1092° / 65°0
92 °
La Crescenta-Montrose, Monday, 10 August
Overcast. High 92°, low 65°.
Pressure29.94 inHg
Wind7.5 mph SW
Humidity29%
Visibility6.2 mi
Dew point53°
Tue, 1190° / 64°0
90 °
La Crescenta-Montrose, Tuesday, 11 August
Overcast. High 90°, low 64°.
Pressure29.97 inHg
Wind7.9 mph SW
Humidity28%
Visibility6.2 mi
Dew point49°
Wed, 1286° / 69°0
86 °
La Crescenta-Montrose, Wednesday, 12 August
Mostly clear. High 86°, low 69°.
Pressure29.91 inHg
Wind8.2 mph S
Humidity35%
Visibility6.2 mi
Dew point53°
Thu, 1382° / 65°0
82 °
La Crescenta-Montrose, Thursday, 13 August
Clear. High 82°, low 65°.
Pressure29.91 inHg
Wind9.2 mph S
Humidity47%
Visibility—
Dew point53°
Fri, 1483° / 62°0
83 °
La Crescenta-Montrose, Friday, 14 August
Overcast. High 83°, low 62°.
Pressure29.97 inHg
Wind8.7 mph S
Humidity41%
Visibility—
Dew point49°
Sat, 1586° / 69°0
86 °
La Crescenta-Montrose, Saturday, 15 August
Light rain. High 86°, low 69°.
Pressure30.00 inHg
Wind9.3 mph S
Humidity33%
Visibility—
Dew point47°
Sun, 1684° / 68°0.02
84 °
La Crescenta-Montrose, Sunday, 16 August
Light rain. High 84°, low 68°.
Pressure30.09 inHg
Wind9.4 mph S
Humidity46%
Visibility—
Dew point55°
Mon, 1792° / 71°0
92 °
La Crescenta-Montrose, Monday, 17 August
Partly cloudy. High 92°, low 71°.
Pressure30.03 inHg
Wind8.4 mph SW
Humidity33%
Visibility—
Dew point53°
Tue, 1896° / 76°0
96 °
La Crescenta-Montrose, Tuesday, 18 August
Partly cloudy. High 96°, low 76°.
Pressure29.97 inHg
Wind8.5 mph SW
Humidity25%
Visibility—
Dew point49°
Wed, 19101° / 80°0.01
101 °
La Crescenta-Montrose, Wednesday, 19 August
Light rain. High 101°, low 80°.
Pressure29.91 inHg
Wind8.5 mph SW
Humidity21%
Visibility—
Dew point48°
Thu, 2097° / 81°0
97 °
La Crescenta-Montrose, Thursday, 20 August
Overcast. High 97°, low 81°.
Pressure29.91 inHg
Wind7.4 mph SW
Humidity30%
Visibility—
Dew point54°
Fri, 2198° / 80°0
98 °
La Crescenta-Montrose, Friday, 21 August
Clear. High 98°, low 80°.
Pressure29.85 inHg
Wind8.1 mph SW
Humidity26%
Visibility—
Dew point53°
Sat, 2297° / 79°0.01
97 °
La Crescenta-Montrose, Saturday, 22 August
Light rain. High 97°, low 79°.
Pressure29.91 inHg
Wind8.3 mph SW
Humidity29%
Visibility—
Dew point53°
Sun, 23100° / 80°0
100 °
La Crescenta-Montrose, Sunday, 23 August
Partly cloudy. High 100°, low 80°.
Pressure29.94 inHg
Wind7.9 mph SW
Humidity28%
Visibility—
Dew point54°
Mon, 24104° / 83°0
104 °
La Crescenta-Montrose, Monday, 24 August
Clear. High 104°, low 83°.
Pressure29.91 inHg
Wind8 mph SW
Humidity24%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2589° / 64°0
89 °
La Crescenta-Montrose, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation3%
Record high105° (1985)
Record low55° (1978)
Wed, 2689° / 64°0
89 °
La Crescenta-Montrose, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high103° (1981)
Record low52° (1990)
Thu, 2790° / 64°0
90 °
La Crescenta-Montrose, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high90°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high103° (1981)
Record low51° (1973)
Fri, 2891° / 65°0
91 °
La Crescenta-Montrose, Friday, 28 August
Climate normal for this date — 60-year average.
Average high91°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high103° (1981)
Record low55° (1960)
Sat, 2991° / 66°0
91 °
La Crescenta-Montrose, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high91°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high104° (1967)
Record low53° (1964)
Sun, 3090° / 66°0
90 °
La Crescenta-Montrose, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high90°
Average low66°
Average precipitation0 in
Chance of precipitation2%
Record high104° (1967)
Record low53° (2010)
Mon, 3189° / 64°0
89 °
La Crescenta-Montrose, Monday, 31 August
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation5%
Record high103° (2022)
Record low54° (1992)
Tue, 0189° / 64°0.01
89 °
La Crescenta-Montrose, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0.01 in
Chance of precipitation7%
Record high103° (1982)
Record low52° (1964)
Wed, 0289° / 64°0.04
89 °
La Crescenta-Montrose, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0.04 in
Chance of precipitation8%
Record high106° (1982)
Record low52° (1964)
Thu, 0389° / 65°0.01
89 °
La Crescenta-Montrose, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high89°
Average low65°
Average precipitation0.01 in
Chance of precipitation7%
Record high107° (1988)
Record low53° (1999)
Fri, 0490° / 65°0.01
90 °
La Crescenta-Montrose, Friday, 4 September
Climate normal for this date — 60-year average.
Average high90°
Average low65°
Average precipitation0.01 in
Chance of precipitation5%
Record high106° (1988)
Record low54° (1999)
Sat, 0589° / 65°0.02
89 °
La Crescenta-Montrose, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high89°
Average low65°
Average precipitation0.02 in
Chance of precipitation3%
Record high109° (2020)
Record low55° (2015)
Sun, 0689° / 65°0.01
89 °
La Crescenta-Montrose, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high89°
Average low65°
Average precipitation0.01 in
Chance of precipitation2%
Record high107° (2020)
Record low55° (1985)
Mon, 0789° / 64°0
89 °
La Crescenta-Montrose, Monday, 7 September
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high100° (2024)
Record low52° (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 La Crescenta-Montrose, 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 La Crescenta-Montrose, 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.