Larkspur, Colorado Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Larkspur weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——81°46°—
- FridayJun 5Overcast——83°59°+2°
- SaturdayJun 6Light Rain24%0.12″81°57°-2°
- SundayJun 7Overcast24%—83°55°+2°
- MondayJun 8Overcast22%—85°57°+2°
- TuesdayJun 9Overcast10%—87°59°+2°
- WednesdayJun 10Overcast——86°60°-1°
Ozone at AQI 78 — peak already passed at 1 PM under overcast skies. AQI up 18 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 78 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 78
- UV peak
- 4.1 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 78
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
- 5:28 AM
- Moonset
- 3:06 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Larkspur at a glance
- Today vs. normal: 78°F — typical for the season
- Last frost: April 11 (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 — Larkspur
SPC has placed Larkspur in the General Thunderstorms category for severe thunderstorms today.
- 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.