Amherst, Colorado Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Amherst weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——86°58°—
- FridayJun 5Overcast——85°60°-1°
- SaturdayJun 6Clear——92°63°+7°
- SundayJun 7Drizzle20%0.02″96°66°+4°
- MondayJun 8Overcast31%—88°63°-8°
- TuesdayJun 9Overcast31%—103°65°+15°
- WednesdayJun 10Overcast12%—101°69°-2°
Ozone at AQI 35 now. AQI flat over the last 6 hours (within ±3 points). With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 16 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 AM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 35 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 16 by mid-afternoon.
- Present
- AQI 35
- UV peak
- 3.3 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:21 AM
- Moonset
- 2:51 PM
- In sign
- ♑︎ Capricorn
Pikas hayfeeding in granite peaks
Amherst at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 20 (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 — Amherst
SPC has placed Amherst in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.