June 29 in Honolulu
Weather forecasts run out after about two weeks. For any date further out than that, the honest answer isn't a single number — it's the range Honolulu actually delivers on this date, and how often.
On June 29, Honolulu, HI typically reaches 79°F, but has run anywhere from 75°F to 82°F in eight years out of ten. About 12% of June 29s see no measurable precipitation.
The odds on June 29
Odds computed from the last 30 years (1997–2026).
Where this comes from: 752 daily observations from MANOA LYON ARBO 785.2, covering 1975–2026. We pool every day within 7 days of June 29 — a single calendar date has only about 51 readings, far too few to place a 10th percentile you'd want to trust.
Why it's not a plain average: A climatology computed straight across 1975–2026 describes the middle of that period, not today, so as a statement about the present it runs cold. We fit a trend on year and shift each observation to 2026 before taking the range. The probabilities use the last 30 years instead — shifting a temperature along a trend is well defined, shifting “did it rain” is not.
What this is not: Not a forecast. It is what Honolulu, HI has actually done on this date, which is the only defensible answer once you're past the two-week horizon where real forecasts stop. Data: NOAA NCEI GHCN-Daily.