Monthly outlook for Guadalupe, AZ: average high 106.9°, average low 88.8°. That is 2.7° above the climate normal for August. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 9 August (120.8°), the coolest 13 August (78.3°).
106.9°/88.8°
Average high / low
+2.7°
Above normal
2 / 3
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
104.3°
102.3°
+1.2°
19 August – 28 August
111.3°
101.8°
+5.2°
29 August – 7 September
at normal
101.3°
—
August records over 66 years
117°7 August 2025All-time high
64.6°23 August 1968All-time low
Mon, 10117° / 91°0.02
117 °
Guadalupe, Monday, 10 August
Light rain. High 117°, low 91°.
Pressure29.83 inHg
Wind7.9 mph W
Humidity23%
Visibility6.2 mi
Dew point57°
Tue, 11104° / 85°0
104 °
Guadalupe, Tuesday, 11 August
Clear. High 104°, low 85°.
Pressure29.85 inHg
Wind6.3 mph W
Humidity30%
Visibility6.2 mi
Dew point62°
Wed, 1293° / 86°0.08
93 °
Guadalupe, Wednesday, 12 August
Light rain. High 93°, low 86°.
Pressure29.83 inHg
Wind4 mph SW
Humidity34%
Visibility6.2 mi
Dew point62°
Thu, 1393° / 78°0.54
93 °
Guadalupe, Thursday, 13 August
Rain. High 93°, low 78°.
Pressure29.85 inHg
Wind10.2 mph SE
Humidity53%
Visibility—
Dew point66°
Fri, 1497° / 83°0.03
97 °
Guadalupe, Friday, 14 August
Light rain. High 97°, low 83°.
Pressure29.88 inHg
Wind9.7 mph NW
Humidity26%
Visibility—
Dew point52°
Sat, 15101° / 89°0
101 °
Guadalupe, Saturday, 15 August
Overcast. High 101°, low 89°.
Pressure29.91 inHg
Wind8.9 mph NW
Humidity23%
Visibility—
Dew point51°
Sun, 16104° / 90°0.02
104 °
Guadalupe, Sunday, 16 August
Light rain. High 104°, low 90°.
Pressure29.97 inHg
Wind15.3 mph SE
Humidity24%
Visibility—
Dew point53°
Mon, 17105° / 89°0
105 °
Guadalupe, Monday, 17 August
Partly cloudy. High 105°, low 89°.
Pressure29.91 inHg
Wind9.1 mph N
Humidity29%
Visibility—
Dew point59°
Tue, 18108° / 90°0
108 °
Guadalupe, Tuesday, 18 August
Clear. High 108°, low 90°.
Pressure29.88 inHg
Wind8.5 mph N
Humidity29%
Visibility—
Dew point59°
Wed, 19112° / 88°0
112 °
Guadalupe, Wednesday, 19 August
Clear. High 112°, low 88°.
Pressure29.83 inHg
Wind11.1 mph W
Humidity22%
Visibility—
Dew point56°
Thu, 20107° / 85°0
107 °
Guadalupe, Thursday, 20 August
Clear. High 107°, low 85°.
Pressure29.85 inHg
Wind9 mph W
Humidity33%
Visibility—
Dew point61°
Fri, 21112° / 94°0.01
112 °
Guadalupe, Friday, 21 August
Light rain. High 112°, low 94°.
Pressure29.77 inHg
Wind15.4 mph NE
Humidity23%
Visibility—
Dew point57°
Sat, 22110° / 93°0
110 °
Guadalupe, Saturday, 22 August
Overcast. High 110°, low 93°.
Pressure29.83 inHg
Wind9.4 mph NW
Humidity21%
Visibility—
Dew point54°
Sun, 23114° / 97°0
114 °
Guadalupe, Sunday, 23 August
Clear. High 114°, low 97°.
Pressure29.85 inHg
Wind9.5 mph NE
Humidity19%
Visibility—
Dew point55°
Mon, 24111° / 94°0.02
111 °
Guadalupe, Monday, 24 August
Light rain. High 111°, low 94°.
Pressure29.85 inHg
Wind10.2 mph NE
Humidity21%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 25101° / 79°0.04
101 °
Guadalupe, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high101°
Average low79°
Average precipitation0.04 in
Chance of precipitation23%
Record high112° (2020)
Record low66° (1990)
Wed, 26102° / 79°0.04
102 °
Guadalupe, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high102°
Average low79°
Average precipitation0.04 in
Chance of precipitation15%
Record high112° (2001)
Record low69° (1960)
Thu, 27102° / 79°0.03
102 °
Guadalupe, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high102°
Average low79°
Average precipitation0.03 in
Chance of precipitation17%
Record high112° (2020)
Record low69° (1992)
Fri, 28103° / 79°0.02
103 °
Guadalupe, Friday, 28 August
Climate normal for this date — 60-year average.
Average high103°
Average low79°
Average precipitation0.02 in
Chance of precipitation8%
Record high113° (2023)
Record low69° (1992)
Sat, 29103° / 79°0.05
103 °
Guadalupe, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high103°
Average low79°
Average precipitation0.05 in
Chance of precipitation15%
Record high112° (2023)
Record low70° (1960)
Sun, 30102° / 79°0.04
102 °
Guadalupe, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high102°
Average low79°
Average precipitation0.04 in
Chance of precipitation18%
Record high111° (2011)
Record low68° (1992)
Mon, 31102° / 80°0.03
102 °
Guadalupe, Monday, 31 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.03 in
Chance of precipitation13%
Record high111° (2011)
Record low69° (1962)
Tue, 01101° / 79°0.05
101 °
Guadalupe, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high101°
Average low79°
Average precipitation0.05 in
Chance of precipitation18%
Record high110° (1995)
Record low63° (1992)
Wed, 02101° / 79°0.07
101 °
Guadalupe, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high101°
Average low79°
Average precipitation0.07 in
Chance of precipitation18%
Record high110° (1982)
Record low63° (1992)
Thu, 03102° / 79°0.01
102 °
Guadalupe, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high102°
Average low79°
Average precipitation0.01 in
Chance of precipitation10%
Record high109° (1983)
Record low65° (1999)
Fri, 04101° / 78°0.06
101 °
Guadalupe, Friday, 4 September
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.06 in
Chance of precipitation7%
Record high112° (2020)
Record low63° (1961)
Sat, 05101° / 78°0.07
101 °
Guadalupe, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.07 in
Chance of precipitation17%
Record high114° (2020)
Record low64° (1992)
Sun, 06101° / 78°0.06
101 °
Guadalupe, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.06 in
Chance of precipitation12%
Record high112° (2020)
Record low61° (1970)
Mon, 07100° / 78°0.04
100 °
Guadalupe, Monday, 7 September
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.04 in
Chance of precipitation13%
Record high110° (1979)
Record low65° (1965)
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 Guadalupe, 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 Guadalupe, 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.