Weather in Boise, ID
Boise, Tuesday, 20 October, 12:07
Overcast. Feels like 63°. High 71°, low 42°.
Monthly outlook for Boise, ID: average high 63.2°, average low 47.5°. That is 2.7° above the climate normal for October. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 21 October (75.2°), the coolest 24 October (39.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 64.6° | 60.2° | +2.5° |
| 30 October – 8 November | 60.8° | 54.6° | +3.5° |
| 9 November – 18 November | at normal | 50.1° | — |
October records over 66 years
0
Boise, Wednesday, 21 October
Clear. High 75°, low 43°.
0.15
Boise, Thursday, 22 October
Rain. High 69°, low 51°.
0.16Boise, Friday, 23 October
Rain. High 59°, low 48°.
0Boise, Saturday, 24 October
Clear. High 58°, low 40°.
0Boise, Sunday, 25 October
Clear. High 61°, low 44°.
0Boise, Monday, 26 October
Clear. High 61°, low 42°.
0Boise, Tuesday, 27 October
Clear. High 63°, low 46°.
0Boise, Wednesday, 28 October
Clear. High 64°, low 47°.
0Boise, Thursday, 29 October
Overcast. High 66°, low 51°.
0Boise, Friday, 30 October
Overcast. High 66°, low 52°.
0.01Boise, Saturday, 31 October
Light rain. High 69°, low 54°.
0.06Boise, Sunday, 1 November
Light rain. High 60°, low 52°.
0.2Boise, Monday, 2 November
Light rain. High 56°, low 52°.
0.04Boise, Tuesday, 3 November
Light rain. High 55°, low 50°.
0Boise, Wednesday, 4 November
Clear. High 59°, low 47°.
0.05
Boise, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Boise, Friday, 6 November
Climate normal for this date — 60-year average.
0.05
Boise, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Boise, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Boise, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Boise, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Boise, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Boise, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Boise, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Boise, Saturday, 14 November
Climate normal for this date — 60-year average.
0.03
Boise, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Boise, Monday, 16 November
Climate normal for this date — 60-year average.
0.07Boise, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Boise, Wednesday, 18 November
Climate normal for this date — 60-year average.
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 Boise, ID 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 Boise, ID 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.
Sun and moon today
Weather history
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