Boulder, Wyoming Weather
Paintbrush crowns the ridges. Day 88 of spring. Read this microseason across nine climate regions →
Boulder weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——73°36°—
- TuesdayJun 16Overcast——78°44°+5°
- WednesdayJun 17Clear——75°50°-3°
- ThursdayJun 18Clear——78°44°+3°
- FridayJun 19Light Drizzle——77°48°-1°
- SaturdayJun 20Light Drizzle41%—77°52°0°
- SundayJun 21Overcast38%—76°49°-1°
AQI 38 (Good), driven by Ozone. AQI up 9 over the last 6 hours (gradual rise). Ozone at AQI 58 now. With UV 10 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 80 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 58 now. With UV 10 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 80 around 1 PM.
- Present
- AQI 58
- UV peak
- 10.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 80
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
- 5:43 AM
- Moonset
- 9:21 PM
- In sign
- ♋︎ Cancer
Paintbrush crowns the ridges
Boulder at a glance
- Today vs. normal: 4°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 — Boulder
- Mon73°36°1%
- Tue78°44°2%
- Wed75°50°0%
- Thu78°44°0%
- Fri77°48°3%
- Sat77°52°41%
- Sun76°49°38%
- Mon79°49°20%
- Tue80°55°7%
- Wed82°49°2%
- Thu89°54°3%
- Fri77°56°2%
- Sat71°49°3%
- Sun75°44°10%
- Mon83°46°6%
- Tue91°56°10%
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 Boulder
- 82923