Weather in Boulder, WY
Boulder, Thursday, 8 October, 19:36
Clear. Feels like 52°. High 73°, low 38°.
Monthly outlook for Boulder, WY: average high 54.3°, average low 36.5°. That is 2.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 8 October (72.6°), the coolest 16 October (28.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 54.2° | 51.7° | +1.4° |
| 18 October – 27 October | 54.5° | 47.5° | +3.9° |
| 28 October – 6 November | at normal | 40.7° | — |
October records over 66 years
0
Boulder, Friday, 9 October
Clear. High 71°, low 34°.
0.21
Boulder, Saturday, 10 October
Rain. High 63°, low 36°.
0.4Boulder, Sunday, 11 October
Rain. High 52°, low 46°.
0.28Boulder, Monday, 12 October
Rain. High 54°, low 44°.
0.12Boulder, Tuesday, 13 October
Light rain. High 53°, low 41°.
0.59Boulder, Wednesday, 14 October
Rain. High 47°, low 40°.
0.17
Boulder, Thursday, 15 October
Snow. High 40°, low 34°.
0Boulder, Friday, 16 October
Clear. High 42°, low 29°.
0
Boulder, Saturday, 17 October
Partly cloudy. High 49°, low 31°.
0Boulder, Sunday, 18 October
Partly cloudy. High 51°, low 34°.
0Boulder, Monday, 19 October
Clear. High 52°, low 34°.
0Boulder, Tuesday, 20 October
Clear. High 57°, low 34°.
0
Boulder, Wednesday, 21 October
Mostly clear. High 57°, low 37°.
0Boulder, Thursday, 22 October
Clear. High 54°, low 37°.
0Boulder, Friday, 23 October
Clear. High 56°, low 36°.
0.06Boulder, Saturday, 24 October
Climate normal for this date — 60-year average.
0.04Boulder, Sunday, 25 October
Climate normal for this date — 60-year average.
0.04Boulder, Monday, 26 October
Climate normal for this date — 60-year average.
0.03Boulder, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Boulder, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.05
Boulder, Thursday, 29 October
Climate normal for this date — 60-year average.
0.06Boulder, Friday, 30 October
Climate normal for this date — 60-year average.
0.04Boulder, Saturday, 31 October
Climate normal for this date — 60-year average.
0.03Boulder, Sunday, 1 November
Climate normal for this date — 60-year average.
0.06Boulder, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Boulder, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Boulder, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Boulder, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05Boulder, Friday, 6 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 Boulder, WY 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 Boulder, WY 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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