Casper Mountain, Saturday, 8 August, 17:32
Clear. Feels like 82°. High 87°, low 52°.
Casper Mountain, Sunday, 9 August
Mostly clear. High 89°, low 51°.
Casper Mountain, Monday, 10 August
Light rain. High 88°, low 49°.
Casper Mountain, Tuesday, 11 August
Clear. High 87°, low 61°.
Casper Mountain, Wednesday, 12 August
Overcast. High 83°, low 57°.
Casper Mountain, Thursday, 13 August
Light rain. High 79°, low 52°.
Casper Mountain, Friday, 14 August
Overcast. High 85°, low 55°.
Casper Mountain, Saturday, 15 August
Light rain. High 75°, low 59°.
Casper Mountain, Sunday, 16 August
Partly cloudy. High 84°, low 58°.
Casper Mountain, Monday, 17 August
Overcast. High 85°, low 62°.
Casper Mountain, Tuesday, 18 August
Clear. High 86°, low 60°.
Casper Mountain, Wednesday, 19 August
Partly cloudy. High 81°, low 59°.
Casper Mountain, Thursday, 20 August
Light rain. High 81°, low 56°.
Casper Mountain, Friday, 21 August
Clear. High 88°, low 60°.
Casper Mountain, Saturday, 22 August
Light rain. High 84°, low 61°.
Casper Mountain, Sunday, 23 August
Light rain. High 83°, low 57°.
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.
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.
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.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.