Monthly outlook for Surprise, AZ: average high 80.4°, average low 66.1°. That is 0.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 20 October (92.1°), the coolest 24 October (57.2°).
80.4°/66.1°
Average high / low
+0.1°
Above normal
3 / 1
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
83°
81.6°
+0.7°
29 October – 7 November
76°
77.6°
-0.9°
8 November – 17 November
at normal
73.6°
—
October records over 66 years
108.3°1 October 2024All-time high
32.7°30 October 1971All-time low
Tue, 2092° / 70°0
92 °
Surprise, Tuesday, 20 October
Mostly clear. High 92°, low 70°.
Pressure29.91 inHg
Wind10 mph SE
Humidity35%
Visibility6.2 mi
Dew point55°
Wed, 2184° / 69°0.08
84 °
Surprise, Wednesday, 21 October
Light rain. High 84°, low 69°.
Pressure29.88 inHg
Wind9.5 mph E
Humidity40%
Visibility6.2 mi
Dew point57°
Thu, 2276° / 63°0.11
76 °
Surprise, Thursday, 22 October
Light rain. High 76°, low 63°.
Pressure29.88 inHg
Wind10.1 mph E
Humidity58%
Visibility3.6 mi
Dew point61°
Fri, 2375° / 61°0
75 °
Surprise, Friday, 23 October
Mostly clear. High 75°, low 61°.
Pressure29.91 inHg
Wind4.5 mph SE
Humidity54%
Visibility—
Dew point53°
Sat, 2478° / 57°0
78 °
Surprise, Saturday, 24 October
Clear. High 78°, low 57°.
Pressure29.94 inHg
Wind4.9 mph E
Humidity41%
Visibility—
Dew point46°
Sun, 2582° / 65°0
82 °
Surprise, Sunday, 25 October
Clear. High 82°, low 65°.
Pressure29.97 inHg
Wind13.8 mph NE
Humidity23%
Visibility—
Dew point37°
Mon, 2683° / 69°0
83 °
Surprise, Monday, 26 October
Partly cloudy. High 83°, low 69°.
Pressure29.94 inHg
Wind13.8 mph NE
Humidity29%
Visibility—
Dew point43°
Tue, 2784° / 69°0
84 °
Surprise, Tuesday, 27 October
Partly cloudy. High 84°, low 69°.
Pressure29.91 inHg
Wind9.1 mph E
Humidity21%
Visibility—
Dew point36°
Wed, 2885° / 73°0
85 °
Surprise, Wednesday, 28 October
Overcast. High 85°, low 73°.
Pressure29.91 inHg
Wind18.6 mph E
Humidity30%
Visibility—
Dew point46°
Thu, 2979° / 71°0
79 °
Surprise, Thursday, 29 October
Overcast. High 79°, low 71°.
Pressure29.88 inHg
Wind11.8 mph SE
Humidity40%
Visibility—
Dew point49°
Fri, 3080° / 68°0
80 °
Surprise, Friday, 30 October
Overcast. High 80°, low 68°.
Pressure29.83 inHg
Wind7.2 mph S
Humidity35%
Visibility—
Dew point46°
Sat, 3179° / 68°0
79 °
Surprise, Saturday, 31 October
Overcast. High 79°, low 68°.
Pressure29.91 inHg
Wind12.3 mph SE
Humidity28%
Visibility—
Dew point40°
Sun, 0167° / 64°0.24
67 °
Surprise, Sunday, 1 November
Light rain. High 67°, low 64°.
Pressure30.09 inHg
Wind11.7 mph SE
Humidity78%
Visibility—
Dew point59°
Mon, 0276° / 64°0.01
76 °
Surprise, Monday, 2 November
Light rain. High 76°, low 64°.
Pressure30.12 inHg
Wind5.5 mph W
Humidity61%
Visibility—
Dew point56°
Tue, 0376° / 65°0
76 °
Surprise, Tuesday, 3 November
Overcast. High 76°, low 65°.
Pressure30.00 inHg
Wind7.9 mph W
Humidity42%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0478° / 53°0
78 °
Surprise, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high78°
Average low53°
Average precipitation0 in
Chance of precipitation2%
Record high91° (2001)
Record low38° (2022)
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)
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.