Cheyenne, Wyoming Weather
Pikas hayfeeding in granite peaks. Day 76 of spring. Read this microseason across nine climate regions →
Cheyenne weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast20%—79°47°—
- ThursdayJun 4Overcast11%—85°47°+6°
- FridayJun 5Overcast11%—84°52°-1°
- SaturdayJun 6Drizzle——88°59°+4°
- SundayJun 7Overcast32%—87°57°-1°
- MondayJun 8Drizzle39%—81°56°-6°
- TuesdayJun 9Overcast28%—88°53°+7°
Ozone at AQI 58 — peak already passed at 1 PM under clear skies. AQI up 15 in the last 6 hours — air quality is degrading. 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 58 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 58
- UV peak
- 1.4 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 58
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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:56 AM
- Moonset
- 1:56 PM
- In sign
- ♑︎ Capricorn
Pikas hayfeeding in granite peaks
Cheyenne at a glance
- Today vs. normal: 75°F — typical for the season
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 3, 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.
SPC Convective Outlook
Storm Prediction Center — Cheyenne
SPC has placed Cheyenne in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.