Guilford Center, Connecticut Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Guilford Center weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Partly Cloudy——77°51°—
- FridayJun 5Overcast——84°54°+7°
- SaturdayJun 6Heavy Drizzle27%0.01″86°57°+2°
- SundayJun 7Showers27%0.03″82°62°-4°
- MondayJun 8Light Drizzle—0.01″76°54°-6°
- TuesdayJun 9Overcast——78°53°+2°
- WednesdayJun 10Overcast——85°56°+7°
Ozone at AQI 110 — peak already passed at 1 PM under clear skies. AQI up 41 in the last 6 hours — air quality is degrading. Levels should ease through evening.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 110 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 110
- UV peak
- 0.6 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 110
PM × Wind × Precip
PM2.5 at 7.2 µg/m³, PM10 at 8.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.81
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:22 AM
- Moonset
- 12:45 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Guilford Center at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 24 (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 4, 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 — Guilford Center
SPC has placed Guilford Center in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
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.