Monthly outlook for Surprise, AZ: average high 79.3°, average low 64.7°. That is 1.8° below the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 21 October (86.3°), the coolest 14 October (55.4°).
79.3°/64.7°
Average high / low
−1.8°
Below normal
1 / 1
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
79.1°
83.9°
-2.6°
24 October – 2 November
79.5°
79.2°
+0.2°
3 November – 12 November
at normal
76.1°
—
October records over 66 years
108.3°1 October 2024All-time high
32.7°30 October 1971All-time low
Thu, 1586° / 60°0
86 °
Surprise, Thursday, 15 October
Clear. High 86°, low 60°.
Pressure29.97 inHg
Wind8.7 mph NE
Humidity30%
Visibility6.2 mi
Dew point44°
Fri, 1682° / 68°0
82 °
Surprise, Friday, 16 October
Clear. High 82°, low 68°.
Pressure30.12 inHg
Wind17.6 mph E
Humidity26%
Visibility6.2 mi
Dew point44°
Sat, 1775° / 61°0.17
75 °
Surprise, Saturday, 17 October
Light rain. High 75°, low 61°.
Pressure30.15 inHg
Wind15.1 mph E
Humidity20%
Visibility6.2 mi
Dew point29°
Sun, 1873° / 60°0.02
73 °
Surprise, Sunday, 18 October
Light rain. High 73°, low 60°.
Pressure30.06 inHg
Wind10.6 mph E
Humidity54%
Visibility—
Dew point50°
Mon, 1980° / 61°0
80 °
Surprise, Monday, 19 October
Mostly clear. High 80°, low 61°.
Pressure29.97 inHg
Wind5.9 mph N
Humidity46%
Visibility—
Dew point52°
Tue, 2081° / 75°0.02
81 °
Surprise, Tuesday, 20 October
Light rain. High 81°, low 75°.
Pressure29.88 inHg
Wind10.4 mph SE
Humidity37%
Visibility—
Dew point51°
Wed, 2186° / 72°0.02
86 °
Surprise, Wednesday, 21 October
Light rain. High 86°, low 72°.
Pressure29.85 inHg
Wind10.9 mph SW
Humidity41%
Visibility—
Dew point54°
Thu, 2278° / 66°0.02
78 °
Surprise, Thursday, 22 October
Light rain. High 78°, low 66°.
Pressure29.77 inHg
Wind18.3 mph SW
Humidity39%
Visibility—
Dew point49°
Fri, 2374° / 62°0
74 °
Surprise, Friday, 23 October
Clear. High 74°, low 62°.
Pressure29.94 inHg
Wind6.6 mph SW
Humidity39%
Visibility—
Dew point42°
Sat, 2477° / 64°0
77 °
Surprise, Saturday, 24 October
Clear. High 77°, low 64°.
Pressure29.97 inHg
Wind9 mph NE
Humidity31%
Visibility—
Dew point40°
Sun, 2579° / 65°0
79 °
Surprise, Sunday, 25 October
Partly cloudy. High 79°, low 65°.
Pressure30.00 inHg
Wind13.7 mph NE
Humidity22%
Visibility—
Dew point32°
Mon, 2680° / 66°0
80 °
Surprise, Monday, 26 October
Mostly clear. High 80°, low 66°.
Pressure29.88 inHg
Wind7.6 mph E
Humidity28%
Visibility—
Dew point40°
Tue, 2781° / 67°0
81 °
Surprise, Tuesday, 27 October
Overcast. High 81°, low 67°.
Pressure29.80 inHg
Wind4.6 mph NE
Humidity29%
Visibility—
Dew point42°
Wed, 2882° / 67°0
82 °
Surprise, Wednesday, 28 October
Clear. High 82°, low 67°.
Pressure29.85 inHg
Wind6 mph SW
Humidity26%
Visibility—
Dew point39°
Thu, 2978° / 66°0
78 °
Surprise, Thursday, 29 October
Overcast. High 78°, low 66°.
Pressure29.85 inHg
Wind7.7 mph SW
Humidity39%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3078° / 54°0.02
78 °
Surprise, Friday, 30 October
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0.02 in
Chance of precipitation7%
Record high90° (1966)
Record low33° (1971)
Sat, 3177° / 54°0.01
77 °
Surprise, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high77°
Average low54°
Average precipitation0.01 in
Chance of precipitation2%
Record high91° (1988)
Record low39° (1991)
Sun, 0178° / 53°0.03
78 °
Surprise, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high78°
Average low53°
Average precipitation0.03 in
Chance of precipitation7%
Record high93° (2020)
Record low39° (1971)
Mon, 0278° / 54°0.01
78 °
Surprise, Monday, 2 November
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0.01 in
Chance of precipitation3%
Record high91° (2020)
Record low41° (2004)
Tue, 0378° / 54°0
78 °
Surprise, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0 in
Chance of precipitation3%
Record high91° (2009)
Record low41° (2004)
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)
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.