Weather in Casper Mountain, WY
Casper Mountain, Sunday, 18 October, 03:50
Clear. Feels like 31°. High 62°, low 38°.
Monthly outlook for Casper Mountain, WY: average high 57.6°, average low 38.7°. That is 7.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 21 October (67.9°), the coolest 24 October (27.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 59.1° | 46.4° | +7.1° |
| 28 October – 6 November | 54.9° | 39.4° | +8.6° |
| 7 November – 16 November | at normal | 36.1° | — |
October records over 66 years
0
Casper Mountain, Monday, 19 October
Mostly clear. High 66°, low 36°.
0
Casper Mountain, Tuesday, 20 October
Clear. High 66°, low 47°.
0.03
Casper Mountain, Wednesday, 21 October
Light rain. High 68°, low 46°.
0
Casper Mountain, Thursday, 22 October
Overcast. High 68°, low 48°.
0.05Casper Mountain, Friday, 23 October
Light rain. High 64°, low 41°.
0.57
Casper Mountain, Saturday, 24 October
Snow. High 37°, low 27°.
0Casper Mountain, Sunday, 25 October
Clear. High 52°, low 31°.
0Casper Mountain, Monday, 26 October
Clear. High 53°, low 36°.
0Casper Mountain, Tuesday, 27 October
Clear. High 56°, low 38°.
0Casper Mountain, Wednesday, 28 October
Clear. High 55°, low 37°.
0
Casper Mountain, Thursday, 29 October
Partly cloudy. High 53°, low 36°.
0Casper Mountain, Friday, 30 October
Overcast. High 52°, low 36°.
0Casper Mountain, Saturday, 31 October
Overcast. High 54°, low 36°.
0Casper Mountain, Sunday, 1 November
Clear. High 58°, low 42°.
0Casper Mountain, Monday, 2 November
Overcast. High 58°, low 44°.
0.05Casper Mountain, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Casper Mountain, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Casper Mountain, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Casper Mountain, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Casper Mountain, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Casper Mountain, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Casper Mountain, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Casper Mountain, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Casper Mountain, Monday, 16 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 Casper Mountain, 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 Casper Mountain, 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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