Monthly outlook for Surprise, AZ: average high 81.3°, average low 65.5°. That is 0.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 20 October (92.8°), the coolest 23 October (60.6°).
81.3°/65.5°
Average high / low
+0.8°
Above normal
3 / 1
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
82.9°
81.1°
+1°
30 October – 8 November
78.5°
77.2°
+0.7°
9 November – 18 November
at normal
73.2°
—
October records over 66 years
108.3°1 October 2024All-time high
32.7°30 October 1971All-time low
Wed, 2190° / 67°0.03
90 °
Surprise, Wednesday, 21 October
Light rain. High 90°, low 67°.
Pressure29.91 inHg
Wind12.6 mph E
Humidity40%
Visibility6.2 mi
Dew point59°
Thu, 2281° / 67°0.07
81 °
Surprise, Thursday, 22 October
Light rain. High 81°, low 67°.
Pressure29.85 inHg
Wind11.4 mph E
Humidity53%
Visibility6.2 mi
Dew point61°
Fri, 2377° / 61°0
77 °
Surprise, Friday, 23 October
Clear. High 77°, low 61°.
Pressure29.91 inHg
Wind3.8 mph SE
Humidity44%
Visibility6.2 mi
Dew point51°
Sat, 2479° / 61°0
79 °
Surprise, Saturday, 24 October
Clear. High 79°, low 61°.
Pressure29.88 inHg
Wind3.2 mph W
Humidity33%
Visibility—
Dew point42°
Sun, 2581° / 62°0
81 °
Surprise, Sunday, 25 October
Clear. High 81°, low 62°.
Pressure30.00 inHg
Wind5.8 mph N
Humidity29%
Visibility—
Dew point39°
Mon, 2685° / 70°0
85 °
Surprise, Monday, 26 October
Partly cloudy. High 85°, low 70°.
Pressure29.88 inHg
Wind11.6 mph E
Humidity19%
Visibility—
Dew point34°
Tue, 2784° / 69°0
84 °
Surprise, Tuesday, 27 October
Mostly clear. High 84°, low 69°.
Pressure29.91 inHg
Wind6.5 mph W
Humidity25%
Visibility—
Dew point40°
Wed, 2880° / 72°0
80 °
Surprise, Wednesday, 28 October
Overcast. High 80°, low 72°.
Pressure29.91 inHg
Wind18.3 mph SE
Humidity41%
Visibility—
Dew point53°
Thu, 2979° / 68°0
79 °
Surprise, Thursday, 29 October
Overcast. High 79°, low 68°.
Pressure29.88 inHg
Wind10.6 mph SE
Humidity39%
Visibility—
Dew point48°
Fri, 3077° / 64°0.01
77 °
Surprise, Friday, 30 October
Light rain. High 77°, low 64°.
Pressure29.91 inHg
Wind12.6 mph SW
Humidity34%
Visibility—
Dew point43°
Sat, 3174° / 61°0.08
74 °
Surprise, Saturday, 31 October
Light rain. High 74°, low 61°.
Pressure30.03 inHg
Wind8 mph SW
Humidity42%
Visibility—
Dew point45°
Sun, 0177° / 62°0
77 °
Surprise, Sunday, 1 November
Clear. High 77°, low 62°.
Pressure30.12 inHg
Wind6.2 mph E
Humidity31%
Visibility—
Dew point39°
Mon, 0285° / 67°0
85 °
Surprise, Monday, 2 November
Partly cloudy. High 85°, low 67°.
Pressure30.06 inHg
Wind6.4 mph E
Humidity23%
Visibility—
Dew point37°
Tue, 0385° / 70°0
85 °
Surprise, Tuesday, 3 November
Overcast. High 85°, low 70°.
Pressure29.94 inHg
Wind8.1 mph E
Humidity22%
Visibility—
Dew point37°
Wed, 0474° / 62°0.69
74 °
Surprise, Wednesday, 4 November
Heavy rain. High 74°, low 62°.
Pressure29.91 inHg
Wind12.5 mph NW
Humidity73%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0577° / 53°0.02
77 °
Surprise, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high77°
Average low53°
Average precipitation0.02 in
Chance of precipitation7%
Record high94° (2020)
Record low41° (2015)
Fri, 0678° / 53°0.01
78 °
Surprise, Friday, 6 November
Climate normal for this date — 60-year average.
Average high78°
Average low53°
Average precipitation0.01 in
Chance of precipitation7%
Record high90° (1999)
Record low42° (2015)
Sat, 0776° / 53°0
76 °
Surprise, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high76°
Average low53°
Average precipitation0 in
Chance of precipitation5%
Record high88° (2007)
Record low40° (1990)
Sun, 0875° / 53°0.02
75 °
Surprise, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high75°
Average low53°
Average precipitation0.02 in
Chance of precipitation8%
Record high87° (2016)
Record low36° (2000)
Mon, 0975° / 52°0.02
75 °
Surprise, Monday, 9 November
Climate normal for this date — 60-year average.
Average high75°
Average low52°
Average precipitation0.02 in
Chance of precipitation8%
Record high88° (2025)
Record low39° (2000)
Tue, 1075° / 52°0.02
75 °
Surprise, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high75°
Average low52°
Average precipitation0.02 in
Chance of precipitation10%
Record high87° (2009)
Record low38° (1998)
Wed, 1174° / 51°0.06
74 °
Surprise, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high74°
Average low51°
Average precipitation0.06 in
Chance of precipitation12%
Record high88° (1999)
Record low38° (2012)
Thu, 1274° / 51°0.05
74 °
Surprise, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high74°
Average low51°
Average precipitation0.05 in
Chance of precipitation7%
Record high90° (1999)
Record low36° (2000)
Fri, 1374° / 51°0.02
74 °
Surprise, Friday, 13 November
Climate normal for this date — 60-year average.
Average high74°
Average low51°
Average precipitation0.02 in
Chance of precipitation8%
Record high88° (1999)
Record low35° (2000)
Sat, 1473° / 50°0.03
73 °
Surprise, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high88° (1999)
Record low34° (1985)
Sun, 1573° / 50°0.03
73 °
Surprise, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.03 in
Chance of precipitation12%
Record high88° (1999)
Record low35° (1985)
Mon, 1672° / 50°0.01
72 °
Surprise, Monday, 16 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.01 in
Chance of precipitation7%
Record high86° (2020)
Record low34° (2000)
Tue, 1771° / 49°0.01
71 °
Surprise, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high71°
Average low49°
Average precipitation0.01 in
Chance of precipitation5%
Record high86° (2020)
Record low32° (1964)
Wed, 1871° / 49°0.04
71 °
Surprise, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high71°
Average low49°
Average precipitation0.04 in
Chance of precipitation7%
Record high84° (2008)
Record low36° (1969)
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 Surprise, 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 Surprise, 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.