Monthly outlook for Montara, AZ: average high 103.8°, average low 89.1°. That is 1° above the climate normal for August. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 9 August (113.5°), the coolest 20 August (81.8°).
103.8°/89.1°
Average high / low
+1°
Above normal
5 / 2
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
104.3°
102.2°
+1.2°
19 August – 28 August
103.1°
101.7°
+0.8°
29 August – 7 September
at normal
101.2°
—
August records over 66 years
118°7 August 2025All-time high
63.1°21 August 1979All-time low
Climate normals and records are computed from the nearest reference point — Glendale (2 mi).
Mon, 10111° / 88°0.01
111 °
Montara, Monday, 10 August
Light rain. High 111°, low 88°.
Pressure29.83 inHg
Wind12.2 mph W
Humidity24%
Visibility6.2 mi
Dew point59°
Tue, 11105° / 87°0.03
105 °
Montara, Tuesday, 11 August
Light rain. High 105°, low 87°.
Pressure29.85 inHg
Wind6.6 mph W
Humidity31%
Visibility6.2 mi
Dew point63°
Wed, 1295° / 88°0.12
95 °
Montara, Wednesday, 12 August
Light rain. High 95°, low 88°.
Pressure29.83 inHg
Wind1.6 mph SE
Humidity34%
Visibility6.2 mi
Dew point60°
Thu, 1399° / 83°0.27
99 °
Montara, Thursday, 13 August
Rain. High 99°, low 83°.
Pressure29.83 inHg
Wind10.2 mph SW
Humidity40%
Visibility—
Dew point62°
Fri, 14101° / 90°0
101 °
Montara, Friday, 14 August
Overcast. High 101°, low 90°.
Pressure29.88 inHg
Wind9.5 mph W
Humidity26%
Visibility—
Dew point54°
Sat, 15104° / 91°0
104 °
Montara, Saturday, 15 August
Partly cloudy. High 104°, low 91°.
Pressure29.91 inHg
Wind14.3 mph W
Humidity19%
Visibility—
Dew point48°
Sun, 16103° / 90°0
103 °
Montara, Sunday, 16 August
Clear. High 103°, low 90°.
Pressure30.00 inHg
Wind11.3 mph W
Humidity20%
Visibility—
Dew point48°
Mon, 17106° / 92°0
106 °
Montara, Monday, 17 August
Overcast. High 106°, low 92°.
Pressure29.91 inHg
Wind10.6 mph W
Humidity23%
Visibility—
Dew point53°
Tue, 18106° / 92°0.04
106 °
Montara, Tuesday, 18 August
Light rain. High 106°, low 92°.
Pressure29.83 inHg
Wind17.2 mph SE
Humidity27%
Visibility—
Dew point58°
Wed, 19104° / 83°0.42
104 °
Montara, Wednesday, 19 August
Rain. High 104°, low 83°.
Pressure29.85 inHg
Wind36.7 mph S
Humidity28%
Visibility—
Dew point59°
Thu, 20101° / 82°0.3
101 °
Montara, Thursday, 20 August
Rain. High 101°, low 82°.
Pressure29.91 inHg
Wind19.6 mph SE
Humidity36%
Visibility—
Dew point62°
Fri, 21101° / 85°0
101 °
Montara, Friday, 21 August
Partly cloudy. High 101°, low 85°.
Pressure29.88 inHg
Wind9 mph W
Humidity31%
Visibility—
Dew point57°
Sat, 22105° / 93°0
105 °
Montara, Saturday, 22 August
Clear. High 105°, low 93°.
Pressure29.85 inHg
Wind11.5 mph W
Humidity23%
Visibility—
Dew point53°
Sun, 23106° / 94°0
106 °
Montara, Sunday, 23 August
Mostly clear. High 106°, low 94°.
Pressure29.83 inHg
Wind11.8 mph W
Humidity17%
Visibility—
Dew point47°
Mon, 24101° / 95°0.02
101 °
Montara, Monday, 24 August
Light rain. High 101°, low 95°.
Pressure29.83 inHg
Wind6.5 mph S
Humidity20%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 25101° / 80°0.04
101 °
Montara, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high101°
Average low80°
Average precipitation0.04 in
Chance of precipitation15%
Record high111° (2011)
Record low70° (1990)
Wed, 26102° / 80°0.03
102 °
Montara, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.03 in
Chance of precipitation15%
Record high112° (2001)
Record low69° (1960)
Thu, 27102° / 80°0.04
102 °
Montara, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.04 in
Chance of precipitation15%
Record high111° (2011)
Record low70° (1992)
Fri, 28103° / 80°0.02
103 °
Montara, Friday, 28 August
Climate normal for this date — 60-year average.
Average high103°
Average low80°
Average precipitation0.02 in
Chance of precipitation7%
Record high114° (2023)
Record low70° (1992)
Sat, 29103° / 80°0.03
103 °
Montara, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high103°
Average low80°
Average precipitation0.03 in
Chance of precipitation10%
Record high113° (2023)
Record low71° (1960)
Sun, 30102° / 80°0.03
102 °
Montara, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.03 in
Chance of precipitation15%
Record high111° (2011)
Record low70° (1992)
Mon, 31102° / 80°0.02
102 °
Montara, Monday, 31 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.02 in
Chance of precipitation12%
Record high111° (2011)
Record low68° (1962)
Tue, 01101° / 80°0.02
101 °
Montara, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high101°
Average low80°
Average precipitation0.02 in
Chance of precipitation12%
Record high110° (1982)
Record low65° (1992)
Wed, 02101° / 79°0.06
101 °
Montara, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high101°
Average low79°
Average precipitation0.06 in
Chance of precipitation13%
Record high110° (1982)
Record low64° (1992)
Thu, 03102° / 79°0.01
102 °
Montara, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high102°
Average low79°
Average precipitation0.01 in
Chance of precipitation5%
Record high109° (2022)
Record low66° (1992)
Fri, 04101° / 78°0.06
101 °
Montara, Friday, 4 September
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.06 in
Chance of precipitation10%
Record high112° (2020)
Record low65° (1999)
Sat, 05100° / 78°0.08
100 °
Montara, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.08 in
Chance of precipitation18%
Record high114° (2020)
Record low62° (1992)
Sun, 06100° / 78°0.04
100 °
Montara, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.04 in
Chance of precipitation15%
Record high112° (2020)
Record low62° (1970)
Mon, 07100° / 78°0.02
100 °
Montara, Monday, 7 September
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.02 in
Chance of precipitation13%
Record high110° (1979)
Record low66° (1985)
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 Montara, AZ 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 Montara, AZ 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.