Lyman, Wyoming Weather
Pikas hayfeeding in granite peaks. Day 78 of spring. Read this microseason across nine climate regions →
Lyman weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——77°46°—
- FridayJun 5Overcast——82°47°+5°
- SaturdayJun 6Overcast——82°55°0°
- SundayJun 7Overcast23%—71°53°-11°
- MondayJun 8Overcast——76°54°+5°
- TuesdayJun 9Light Drizzle——76°50°0°
- WednesdayJun 10Light Drizzle21%0.01″75°47°-1°
Ozone at AQI 500 now. AQI up 21 in the last 6 hours — air quality is degrading. With UV 0.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 120 by mid-afternoon.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500 now. With UV 0.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 120 by mid-afternoon.
- Present
- AQI 500
- UV peak
- 0.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 120
PM × Wind × Precip
PM10 at 57.2 µg/m³ (AQI 52) with a 0.21 fine-to-coarse ratio under 17 mph wind — coarse road or agricultural dust being kicked up.
- PM2.5/PM10
- 0.21
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- blown dust
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
- 6:27 AM
- Moonset
- 4:28 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Lyman at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 24 (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 5, 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.