Monthly outlook for Waipio, HI: average high 77.8°, average low 70°. That is 1.7° below the climate normal for October. Precipitation is expected on 7 days (about 3.4 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 26 October (83.6°), the coolest 27 October (66.7°).
77.8°/70°
Average high / low
−1.7°
Below normal
7 / 5
Wet days / normal
3.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
78.5°
81°
-1.4°
2 November – 11 November
76.6°
80.2°
-2°
12 November – 21 November
at normal
79°
—
October records over 66 years
89.4°1 October 2020All-time high
65.5°4 October 2023All-time low
Sat, 2482° / 70°0
82 °
Waipio, Saturday, 24 October
Light rain. High 82°, low 70°.
Pressure29.97 inHg
Wind7.7 mph NE
Humidity50%
Visibility6.2 mi
Dew point60°
Sun, 2579° / 70°0.02
79 °
Waipio, Sunday, 25 October
Light rain. High 79°, low 70°.
Pressure29.97 inHg
Wind7.8 mph NE
Humidity60%
Visibility6.2 mi
Dew point62°
Mon, 2684° / 69°0
84 °
Waipio, Monday, 26 October
Overcast. High 84°, low 69°.
Pressure29.91 inHg
Wind0.5 mph SE
Humidity46%
Visibility6.2 mi
Dew point60°
Tue, 2772° / 67°2.72
72 °
Waipio, Tuesday, 27 October
Heavy rain. High 72°, low 67°.
Pressure29.91 inHg
Wind6.8 mph E
Humidity92%
Visibility4.7 mi
Dew point63°
Wed, 2874° / 71°0.17
74 °
Waipio, Wednesday, 28 October
Light rain. High 74°, low 71°.
Pressure29.94 inHg
Wind5.5 mph E
Humidity89%
Visibility—
Dew point70°
Thu, 2975° / 71°0.1
75 °
Waipio, Thursday, 29 October
Light rain. High 75°, low 71°.
Pressure29.97 inHg
Wind5.7 mph NE
Humidity89%
Visibility—
Dew point71°
Fri, 3079° / 71°0
79 °
Waipio, Friday, 30 October
Mostly clear. High 79°, low 71°.
Pressure30.00 inHg
Wind8.5 mph NE
Humidity65%
Visibility—
Dew point64°
Sat, 3177° / 71°0.01
77 °
Waipio, Saturday, 31 October
Light rain. High 77°, low 71°.
Pressure30.00 inHg
Wind7.1 mph E
Humidity73%
Visibility—
Dew point66°
Sun, 0181° / 69°0
81 °
Waipio, Sunday, 1 November
Overcast. High 81°, low 69°.
Pressure29.97 inHg
Wind8 mph SW
Humidity59%
Visibility—
Dew point63°
Mon, 0275° / 70°0.13
75 °
Waipio, Monday, 2 November
Light rain. High 75°, low 70°.
Pressure30.00 inHg
Wind11.1 mph N
Humidity77%
Visibility—
Dew point67°
Tue, 0375° / 69°0.01
75 °
Waipio, Tuesday, 3 November
Light rain. High 75°, low 69°.
Pressure30.15 inHg
Wind13.9 mph NE
Humidity60%
Visibility—
Dew point59°
Wed, 0475° / 69°0.01
75 °
Waipio, Wednesday, 4 November
Light rain. High 75°, low 69°.
Pressure30.18 inHg
Wind15.3 mph NE
Humidity68%
Visibility—
Dew point62°
Thu, 0578° / 70°0.04
78 °
Waipio, Thursday, 5 November
Light rain. High 78°, low 70°.
Pressure30.03 inHg
Wind11.7 mph NE
Humidity67%
Visibility—
Dew point64°
Fri, 0679° / 71°0.09
79 °
Waipio, Friday, 6 November
Light rain. High 79°, low 71°.
Pressure30.03 inHg
Wind13.4 mph NE
Humidity68%
Visibility—
Dew point66°
Sat, 0777° / 72°0.09
77 °
Waipio, Saturday, 7 November
Light rain. High 77°, low 72°.
Pressure30.15 inHg
Wind14.3 mph NE
Humidity78%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0880° / 73°0.04
80 °
Waipio, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high80°
Average low73°
Average precipitation0.04 in
Chance of precipitation28%
Record high86° (2023)
Record low68° (2025)
Mon, 0980° / 73°0.03
80 °
Waipio, Monday, 9 November
Climate normal for this date — 60-year average.
Average high80°
Average low73°
Average precipitation0.03 in
Chance of precipitation28%
Record high84° (2023)
Record low66° (2019)
Tue, 1080° / 73°0.03
80 °
Waipio, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high80°
Average low73°
Average precipitation0.03 in
Chance of precipitation22%
Record high86° (2019)
Record low67° (2021)
Wed, 1180° / 73°0.07
80 °
Waipio, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high80°
Average low73°
Average precipitation0.07 in
Chance of precipitation23%
Record high84° (2019)
Record low67° (2021)
Thu, 1279° / 73°0.06
79 °
Waipio, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high79°
Average low73°
Average precipitation0.06 in
Chance of precipitation23%
Record high85° (2019)
Record low69° (2021)
Fri, 1379° / 72°0.06
79 °
Waipio, Friday, 13 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.06 in
Chance of precipitation35%
Record high85° (2019)
Record low69° (2021)
Sat, 1479° / 73°0.1
79 °
Waipio, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high79°
Average low73°
Average precipitation0.1 in
Chance of precipitation30%
Record high86° (2019)
Record low68° (2018)
Sun, 1579° / 72°0.09
79 °
Waipio, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.09 in
Chance of precipitation33%
Record high86° (2019)
Record low67° (2025)
Mon, 1679° / 72°0.04
79 °
Waipio, Monday, 16 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.04 in
Chance of precipitation33%
Record high84° (2019)
Record low68° (2025)
Tue, 1779° / 72°0.06
79 °
Waipio, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.06 in
Chance of precipitation27%
Record high83° (2021)
Record low67° (1974)
Wed, 1879° / 72°0.19
79 °
Waipio, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.19 in
Chance of precipitation22%
Record high84° (2021)
Record low65° (2017)
Thu, 1979° / 72°0.14
79 °
Waipio, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.14 in
Chance of precipitation32%
Record high85° (2019)
Record low65° (2017)
Fri, 2079° / 72°0.09
79 °
Waipio, Friday, 20 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.09 in
Chance of precipitation33%
Record high84° (2021)
Record low64° (2017)
Sat, 2179° / 72°0.05
79 °
Waipio, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.05 in
Chance of precipitation28%
Record high83° (2022)
Record low63° (2017)
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 Waipio, HI 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 Waipio, HI 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.