Casper Mountain, Wyoming Weather
Paintbrush crowns the ridges. Day 88 of spring. Read this microseason across nine climate regions →
Casper Mountain weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——62°38°—
- TuesdayJun 16Overcast——72°46°+10°
- WednesdayJun 17Partly Cloudy——68°42°-4°
- ThursdayJun 18Overcast——66°36°-2°
- FridayJun 19Overcast——77°43°+11°
- SaturdayJun 20Overcast40%—75°47°-2°
- SundayJun 21Light Drizzle40%0.02″60°44°-15°
AQI 43 (Good), driven by Ozone. AQI up 5 over the last 6 hours (gradual rise). Ozone at AQI 47 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 47 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 47
- UV peak
- 4.8 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 47
PM × Wind × Precip
PM2.5 at 4.5 µg/m³ (AQI 25), ratio 0.50 with 16 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.50
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- transport
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:29 AM
- Moonset
- 9:07 PM
- In sign
- ♋︎ Cancer
Paintbrush crowns the ridges
Casper Mountain at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: May 2 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Casper Mountain
- Mon62°38°1%
- Tue72°46°1%
- Wed68°42°2%
- Thu66°36°0%
- Fri77°43°2%
- Sat75°47°40%
- Sun60°44°40%
- Mon73°42°25%
- Tue70°45°16%
- Wed78°42°13%
- Thu82°48°8%
- Fri80°57°4%
- Sat63°47°6%
- Sun58°41°15%
- Mon73°39°18%
- Tue83°55°19%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Warm-season window is open
As of June 15, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
ZIP codes in Casper Mountain
- 82601