Cheyenne, Wyoming Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Cheyenne weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——85°48°—
- FridayJun 5Overcast10%—82°54°-3°
- SaturdayJun 6Light Drizzle——88°57°+6°
- SundayJun 7Light Drizzle17%—87°60°-1°
- MondayJun 8Overcast45%—83°53°-4°
- TuesdayJun 9Partly Cloudy19%—90°58°+7°
- WednesdayJun 10Light Drizzle12%0.05″91°62°+1°
Ozone at AQI 43. AQI down 5 over the last 6 hours (steady decline since this morning). Overcast through the UV peak window (cloud cover ~86%) — afternoon ozone should stay flat.
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 43. Overcast through the UV peak window (cloud cover ~86%) — afternoon ozone should stay flat.
- Present
- AQI 43
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 10
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
- 5:33 AM
- Moonset
- 3:01 PM
- In sign
- ♑︎ Capricorn
Pikas hayfeeding in granite peaks
Cheyenne at a glance
- Today vs. normal: 20°F below the seasonal normal for this latitude
- 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 4, 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
- TOMORROWNONENo severe risk
- 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.