Monthly outlook for Catalina Foothills, AZ: average high 96.3°, average low 79.7°. That is 0.7° above the climate normal for August. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 10 August (105.7°), the coolest 13 August (72.6°).
96.3°/79.7°
Average high / low
+0.7°
Above normal
7 / 6
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
95.6°
95.1°
+0.3°
19 August – 28 August
97.4°
95.1°
+1.3°
29 August – 7 September
at normal
94.6°
—
August records over 66 years
111.4°6 August 2025All-time high
62.1°30 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Tanque Verde (9 mi).
Mon, 10106° / 77°0.71
106 °
Catalina Foothills, Monday, 10 August
Heavy rain. High 106°, low 77°.
Pressure29.91 inHg
Wind6.4 mph W
Humidity30%
Visibility6.2 mi
Dew point57°
Tue, 1196° / 77°0.07
96 °
Catalina Foothills, Tuesday, 11 August
Light rain. High 96°, low 77°.
Pressure29.94 inHg
Wind9.7 mph NW
Humidity36%
Visibility6.2 mi
Dew point59°
Wed, 1289° / 73°0.5
89 °
Catalina Foothills, Wednesday, 12 August
Rain. High 89°, low 73°.
Pressure29.88 inHg
Wind5.3 mph W
Humidity48%
Visibility6.2 mi
Dew point63°
Thu, 1389° / 73°0.2
89 °
Catalina Foothills, Thursday, 13 August
Light rain. High 89°, low 73°.
Pressure29.85 inHg
Wind5.2 mph SW
Humidity42%
Visibility6.2 mi
Dew point60°
Fri, 1493° / 80°0
93 °
Catalina Foothills, Friday, 14 August
Overcast. High 93°, low 80°.
Pressure29.94 inHg
Wind10 mph W
Humidity37%
Visibility—
Dew point57°
Sat, 1592° / 81°0
92 °
Catalina Foothills, Saturday, 15 August
Overcast. High 92°, low 81°.
Pressure30.00 inHg
Wind8.5 mph NW
Humidity30%
Visibility—
Dew point52°
Sun, 1694° / 81°0
94 °
Catalina Foothills, Sunday, 16 August
Overcast. High 94°, low 81°.
Pressure30.03 inHg
Wind10.3 mph NW
Humidity30%
Visibility—
Dew point52°
Mon, 1796° / 83°0.01
96 °
Catalina Foothills, Monday, 17 August
Light rain. High 96°, low 83°.
Pressure29.94 inHg
Wind9.6 mph W
Humidity30%
Visibility—
Dew point54°
Tue, 1899° / 83°0.03
99 °
Catalina Foothills, Tuesday, 18 August
Light rain. High 99°, low 83°.
Pressure29.91 inHg
Wind14 mph SE
Humidity28%
Visibility—
Dew point54°
Wed, 1997° / 82°0.03
97 °
Catalina Foothills, Wednesday, 19 August
Light rain. High 97°, low 82°.
Pressure29.94 inHg
Wind9 mph E
Humidity34%
Visibility—
Dew point56°
Thu, 2098° / 82°0.03
98 °
Catalina Foothills, Thursday, 20 August
Light rain. High 98°, low 82°.
Pressure29.97 inHg
Wind9.4 mph W
Humidity31%
Visibility—
Dew point55°
Fri, 2196° / 82°0.15
96 °
Catalina Foothills, Friday, 21 August
Rain. High 96°, low 82°.
Pressure29.97 inHg
Wind11.9 mph NW
Humidity41%
Visibility—
Dew point62°
Sat, 2297° / 79°0.18
97 °
Catalina Foothills, Saturday, 22 August
Rain. High 97°, low 79°.
Pressure29.91 inHg
Wind14 mph NE
Humidity40%
Visibility—
Dew point61°
Sun, 23100° / 82°0.08
100 °
Catalina Foothills, Sunday, 23 August
Light rain. High 100°, low 82°.
Pressure29.94 inHg
Wind14.6 mph NE
Humidity33%
Visibility—
Dew point58°
Mon, 2497° / 81°0.03
97 °
Catalina Foothills, Monday, 24 August
Light rain. High 97°, low 81°.
Pressure29.94 inHg
Wind8.5 mph W
Humidity30%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2595° / 74°0.06
95 °
Catalina Foothills, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high95°
Average low74°
Average precipitation0.06 in
Chance of precipitation32%
Record high105° (2020)
Record low66° (1992)
Wed, 2695° / 74°0.06
95 °
Catalina Foothills, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high95°
Average low74°
Average precipitation0.06 in
Chance of precipitation25%
Record high105° (2001)
Record low65° (1966)
Thu, 2795° / 74°0.05
95 °
Catalina Foothills, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high95°
Average low74°
Average precipitation0.05 in
Chance of precipitation35%
Record high106° (2011)
Record low64° (1992)
Fri, 2896° / 74°0.05
96 °
Catalina Foothills, Friday, 28 August
Climate normal for this date — 60-year average.
Average high96°
Average low74°
Average precipitation0.05 in
Chance of precipitation30%
Record high104° (2023)
Record low66° (1964)
Sat, 2996° / 74°0.06
96 °
Catalina Foothills, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high96°
Average low74°
Average precipitation0.06 in
Chance of precipitation38%
Record high104° (2011)
Record low66° (2016)
Sun, 3095° / 73°0.03
95 °
Catalina Foothills, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high95°
Average low73°
Average precipitation0.03 in
Chance of precipitation30%
Record high107° (2011)
Record low62° (1992)
Mon, 3195° / 73°0.04
95 °
Catalina Foothills, Monday, 31 August
Climate normal for this date — 60-year average.
Average high95°
Average low73°
Average precipitation0.04 in
Chance of precipitation28%
Record high106° (2011)
Record low63° (2000)
Tue, 0195° / 74°0.07
95 °
Catalina Foothills, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high95°
Average low74°
Average precipitation0.07 in
Chance of precipitation28%
Record high103° (1983)
Record low66° (1993)
Wed, 0294° / 74°0.05
94 °
Catalina Foothills, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high94°
Average low74°
Average precipitation0.05 in
Chance of precipitation28%
Record high102° (1970)
Record low68° (2000)
Thu, 0394° / 73°0.05
94 °
Catalina Foothills, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high94°
Average low73°
Average precipitation0.05 in
Chance of precipitation33%
Record high103° (1983)
Record low64° (1973)
Fri, 0494° / 73°0.08
94 °
Catalina Foothills, Friday, 4 September
Climate normal for this date — 60-year average.
Average high94°
Average low73°
Average precipitation0.08 in
Chance of precipitation28%
Record high107° (2020)
Record low57° (1961)
Sat, 0594° / 72°0.06
94 °
Catalina Foothills, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high94°
Average low72°
Average precipitation0.06 in
Chance of precipitation22%
Record high106° (2020)
Record low63° (1984)
Sun, 0694° / 72°0.04
94 °
Catalina Foothills, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high94°
Average low72°
Average precipitation0.04 in
Chance of precipitation22%
Record high103° (2020)
Record low64° (1988)
Mon, 0794° / 72°0.06
94 °
Catalina Foothills, Monday, 7 September
Climate normal for this date — 60-year average.
Average high94°
Average low72°
Average precipitation0.06 in
Chance of precipitation23%
Record high104° (1979)
Record low66° (1976)
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 Catalina Foothills, 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 Catalina Foothills, 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.