Lowell, Massachusetts Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Lowell weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——86°64°—
- MondayJul 6Drizzle61%0.03″82°62°-4°
- TuesdayJul 7Light Showers67%0.41″64°60°-18°
- WednesdayJul 8Overcast26%—75°58°+11°
- ThursdayJul 9Overcast15%—83°57°+8°
- FridayJul 10Light Drizzle34%0.01″84°67°+1°
- SaturdayJul 11Overcast17%—83°56°-1°
AQI 30 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.99 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 4 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 30. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 30
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.99 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.99
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:03 PM
- Moonset
- 10:53 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lowell at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: May 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 01850, 01851, 01852, 01854
15-Day Forecast — Lowell
- Sun86°64°3%
- Mon82°62°61%
- Tue64°60°67%
- Wed75°58°26%
- Thu83°57°15%
- Fri84°67°34%
- Sat83°56°17%
- Sun84°61°13%
- Mon66°56°19%
- Tue82°54°18%
- Wed85°62°16%
- Thu90°61°26%
- Fri92°68°22%
- Sat88°68°34%
- Sun92°65°34%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Lowell
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.
ZIP codes in Lowell
- 01851
- 01850
- 01852
- 01854
- 01853