Monthly outlook for Waipio, HI: average high 77.7°, average low 72.4°. That is 1.4° below the climate normal for October. Precipitation is expected on 9 days (about 0.9 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 31 October (80.5°), the coolest 2 November (69.8°).
77.7°/72.4°
Average high / low
−1.4°
Below normal
9 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
77.2°
80.6°
-1.8°
9 November – 18 November
78.4°
79.3°
-0.5°
19 November – 28 November
at normal
78.5°
—
October records over 66 years
89.4°1 October 2020All-time high
65.5°4 October 2023All-time low
Sat, 3181° / 71°0
81 °
Waipio, Saturday, 31 October
Overcast. High 81°, low 71°.
Pressure29.97 inHg
Wind4 mph NE
Humidity67%
Visibility6.2 mi
Dew point67°
Sun, 0178° / 72°0.04
78 °
Waipio, Sunday, 1 November
Light rain. High 78°, low 72°.
Pressure30.03 inHg
Wind11.3 mph NE
Humidity72%
Visibility6.2 mi
Dew point66°
Mon, 0276° / 70°0.04
76 °
Waipio, Monday, 2 November
Light rain. High 76°, low 70°.
Pressure30.09 inHg
Wind14.7 mph NE
Humidity57%
Visibility6.2 mi
Dew point58°
Tue, 0377° / 71°0.04
77 °
Waipio, Tuesday, 3 November
Light rain. High 77°, low 71°.
Pressure30.12 inHg
Wind15.3 mph NE
Humidity64%
Visibility—
Dew point62°
Wed, 0477° / 72°0.1
77 °
Waipio, Wednesday, 4 November
Light rain. High 77°, low 72°.
Pressure30.12 inHg
Wind16 mph E
Humidity71%
Visibility—
Dew point65°
Thu, 0579° / 72°0.07
79 °
Waipio, Thursday, 5 November
Light rain. High 79°, low 72°.
Pressure30.06 inHg
Wind11.7 mph E
Humidity77%
Visibility—
Dew point68°
Fri, 0677° / 73°0.03
77 °
Waipio, Friday, 6 November
Light rain. High 77°, low 73°.
Pressure30.00 inHg
Wind9.9 mph E
Humidity78%
Visibility—
Dew point69°
Sat, 0776° / 72°0.02
76 °
Waipio, Saturday, 7 November
Light rain. High 76°, low 72°.
Pressure29.94 inHg
Wind19.4 mph NE
Humidity72%
Visibility—
Dew point66°
Sun, 0874° / 73°0.14
74 °
Waipio, Sunday, 8 November
Light rain. High 74°, low 73°.
Pressure29.91 inHg
Wind19.6 mph NE
Humidity90%
Visibility—
Dew point71°
Mon, 0978° / 74°0.15
78 °
Waipio, Monday, 9 November
Light rain. High 78°, low 74°.
Pressure30.03 inHg
Wind14.9 mph E
Humidity86%
Visibility—
Dew point72°
Tue, 1079° / 74°0.04
79 °
Waipio, Tuesday, 10 November
Light rain. High 79°, low 74°.
Pressure30.09 inHg
Wind12.2 mph E
Humidity76%
Visibility—
Dew point69°
Wed, 1180° / 73°0
80 °
Waipio, Wednesday, 11 November
Overcast. High 80°, low 73°.
Pressure30.12 inHg
Wind12 mph E
Humidity68%
Visibility—
Dew point66°
Thu, 1277° / 73°0.09
77 °
Waipio, Thursday, 12 November
Light rain. High 77°, low 73°.
Pressure30.03 inHg
Wind8.8 mph NE
Humidity76%
Visibility—
Dew point68°
Fri, 1377° / 72°0.03
77 °
Waipio, Friday, 13 November
Light rain. High 77°, low 72°.
Pressure30.00 inHg
Wind8.8 mph E
Humidity77%
Visibility—
Dew point66°
Sat, 1480° / 73°0.02
80 °
Waipio, Saturday, 14 November
Light rain. High 80°, low 73°.
Pressure30.03 inHg
Wind9.4 mph E
Humidity63%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 2279° / 72°0.06
79 °
Waipio, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.06 in
Chance of precipitation40%
Record high82° (2025)
Record low64° (2024)
Mon, 2379° / 72°0.07
79 °
Waipio, Monday, 23 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.07 in
Chance of precipitation23%
Record high83° (2021)
Record low62° (2024)
Tue, 2479° / 72°0.06
79 °
Waipio, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high79°
Average low72°
Average precipitation0.06 in
Chance of precipitation28%
Record high85° (2023)
Record low60° (2024)
Wed, 2578° / 72°0.04
78 °
Waipio, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high78°
Average low72°
Average precipitation0.04 in
Chance of precipitation30%
Record high85° (2019)
Record low66° (2017)
Thu, 2678° / 71°0.08
78 °
Waipio, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high78°
Average low71°
Average precipitation0.08 in
Chance of precipitation30%
Record high85° (2019)
Record low65° (2022)
Fri, 2778° / 71°0.11
78 °
Waipio, Friday, 27 November
Climate normal for this date — 60-year average.
Average high78°
Average low71°
Average precipitation0.11 in
Chance of precipitation30%
Record high84° (2025)
Record low63° (2025)
Sat, 2878° / 71°0.06
78 °
Waipio, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high78°
Average low71°
Average precipitation0.06 in
Chance of precipitation32%
Record high84° (2025)
Record low67° (1985)
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.