Devens, Massachusetts Weather
Fireflies rise from the lawn. Day 76 of spring. Read this microseason across nine climate regions →
Devens weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Mostly Clear——83°49°—
- ThursdayJun 4Overcast——85°58°+2°
- FridayJun 5Overcast——83°60°-2°
- SaturdayJun 6Drizzle26%—87°65°+4°
- SundayJun 7Light Showers75%0.14″70°52°-17°
- MondayJun 8Overcast31%—78°49°+8°
- TuesdayJun 9Overcast——83°52°+5°
Ozone at AQI 46 — peak already passed at 1 PM under clear skies. AQI down 5 over the last 6 hours (steady decline since this morning). 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 46 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 46
- UV peak
- 5.0 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 46
PM × Wind × Precip
PM2.5 at 7.6 µg/m³, PM10 at 8.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- Wind
- light
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 2:46 AM
- Moonset
- 11:32 AM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Devens at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: May 1 (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
Peak growing season
As of June 3, 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.