Cheyenne, Wyoming Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Cheyenne weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——87°52°—
- SundayJul 5Mostly Clear——91°54°+4°
- MondayJul 6Light Rain15%0.08″91°58°0°
- TuesdayJul 7Drizzle58%0.03″92°62°+1°
- WednesdayJul 8Drizzle73%—86°60°-6°
- ThursdayJul 9Overcast36%—92°59°+6°
- FridayJul 10Drizzle14%0.05″84°57°-8°
AQI 80 (Moderate), driven by Ozone. AQI up 34 in the last 6 hours — air quality is degrading. Ozone at AQI 68 now. With UV 0.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 16 around 1 PM.
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 68 now. With UV 0.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 16 around 1 PM.
- Present
- AQI 68
- UV peak
- 0.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 16
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:19 PM
- Moonset
- 11:13 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Cheyenne at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 82001, 82007, 82009
16-Day Forecast — Cheyenne
- Sat87°52°3%
- Sun91°54°1%
- Mon91°58°15%
- Tue92°62°58%
- Wed86°60°73%
- Thu92°59°36%
- Fri84°57°14%
- Sat89°56°4%
- Sun94°61°5%
- Mon101°61°10%
- Tue99°69°20%
- Wed103°72°30%
- Thu104°72°29%
- Fri99°66°34%
- Sat99°65°35%
- Sun85°65°32%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Cheyenne
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Cheyenne
SPC includes Cheyenne in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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.
ZIP codes in Cheyenne
- 82009
- 82001
- 82007
- 82002
- 82003