Stamford, Connecticut Weather
Night falls a minute earlier. Day 43 of summer. Read this microseason across nine climate regions →
Stamford weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Drizzle18%0.02″82°72°—
- MondayAug 3Heavy Showers51%4.9″80°73°-2°
- TuesdayAug 4Overcast12%—83°63°+3°
- WednesdayAug 5Showers20%0.26″81°69°-2°
- ThursdayAug 6Heavy Drizzle44%0.04″89°73°+8°
- FridayAug 7Drizzle51%0.02″95°75°+6°
- SaturdayAug 8Overcast44%—93°73°-2°
AQI 58 (Moderate), driven by PM2.5. AQI down 10 over the last 6 hours (gradual decline). PM2.5 at 13.9 µg/m³, PM10 at 17.2 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 44. Overcast through the UV peak window (cloud cover ~68%) — afternoon ozone should stay flat.
- Present
- AQI 44
- UV peak
- 4.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 13
PM × Wind × Precip
PM2.5 at 13.9 µg/m³, PM10 at 17.2 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).
Red sky at night, sailor's delight.
- Moonrise
- 9:37 PM
- Moonset
- 9:57 AM
- In sign
- ♓︎ Pisces
Night falls a minute earlier
Stamford at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP codes: 06901, 06902, 06903, 06905, 06906, 06907
16-Day Forecast — Stamford
- Sun82°72°18%
- Mon80°73°51%
- Tue83°63°12%
- Wed81°69°20%
- Thu89°73°44%
- Fri95°75°51%
- Sat93°73°44%
- Sun96°76°32%
- Mon97°77°29%
- Tue85°69°19%
- Wed83°62°14%
- Thu79°70°40%
- Fri83°71°42%
- Sat81°72°39%
- Sun93°74°30%
- Mon87°68°20%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Stamford
Right now in the garden
Peak growing season
As of August 2, 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 — Stamford
SPC has placed Stamford in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal Risk
- 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.
Sun & seasons in Stamford
Stamford sits in Western Connecticut County, where the year’s longest day runs 15h 8m of daylight and its shortest just 9h 13m — a swing of +5h 56m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Hartford, the state’s largest city, lies about 64 miles to the NE. The nearest town Stamford tracks is Bridgeport, roughly 20 miles to the ENE.
ZIP codes in Stamford
- 06906
- 06907
- 06905
- 06902
- 06903
- 06901
- 06904
- 06910
- 06911
- 06912
- 06913
- 06914
- 06926
- 06927