Holyoke, Colorado Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Holyoke weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Clear——93°58°—
- MondayJul 6Overcast15%—96°64°+3°
- TuesdayJul 7Showers61%0.21″99°69°+3°
- WednesdayJul 8Drizzle61%—89°66°-10°
- ThursdayJul 9Light Drizzle58%—92°65°+3°
- FridayJul 10Light Drizzle33%—92°64°0°
- SaturdayJul 11Partly Cloudy11%—92°65°0°
AQI 49 (Good), driven by PM2.5. AQI down 49 over the last 6 hours — air quality is improving sharply. PM2.5 at 8.3 µg/m³, PM10 at 9.3 µg/m³ — typical background levels with no transport signature.
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 36 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 16 around 1 PM.
- Present
- AQI 36
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 16
PM × Wind × Precip
PM2.5 at 8.3 µg/m³, PM10 at 9.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.89
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:08 PM
- Moonset
- 11:04 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Holyoke at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 80734
15-Day Forecast — Holyoke
- Sun93°58°2%
- Mon96°64°15%
- Tue99°69°61%
- Wed89°66°61%
- Thu92°65°58%
- Fri92°64°33%
- Sat92°65°11%
- Sun94°68°2%
- Mon105°70°3%
- Tue105°74°9%
- Wed104°72°14%
- Thu103°74°25%
- Fri94°70°26%
- Sat98°66°19%
- Sun98°68°32%
Forecast data from Open-Meteo (CC BY 4.0).
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 — Holyoke
SPC includes Holyoke in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- 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 Holyoke
- 80734