Weather StoryAlmanac, microseasons, and the day's weather story.

Dayville, Connecticut Weather

Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →

Dayville weather forecast — hour by hour, 7-day outlook, NOAA radar

Dayville, CT
Thursday, June 4 at 5:34 AM
58
°
Clear
Feels like
54°
Humidity
52%
Wind
5 mph
Sunrise
5:13 AM
Sunset
8:18 PM
Dayville, CT
Hour by hour · 24h
24-Hour ForecastDayville, CT: 24-hour forecast. Temperatures range from 56 to 84 degrees Fahrenheit.
L 56°H 84°
Dayville, CT
7-day forecast
  1. Today
    Jun 4
    Overcast
    84°56°
  2. Friday
    Jun 5
    Overcast
    87°57°+3°
  3. Saturday
    Jun 6
    Light Showers
    21%
    89°63°+2°
  4. Sunday
    Jun 7
    Heavy Drizzle
    70%
    0.03″
    84°57°-5°
  5. Monday
    Jun 8
    Overcast
    33%
    76°53°-8°
  6. Tuesday
    Jun 9
    Clear
    83°52°+7°
  7. Wednesday
    Jun 10
    Partly Cloudy
    81°56°-2°
Dayville, CT
Anemometer · 24h winds · from true
NESW
From · True
SSE
156° · veering 137°
Direction
SSE
156°
Sustained
5
mph
Gust
8
mph
Peak 24h
23
avg 5
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 5 · pk 23 @ 8:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 205SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Dayville, CT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1011.8
-0.2 mb in 3h · steady · 29.88 inHg
Now
1011.8
mb
3h
-0.2
mb
12h
+0.7
mb
24h
-0.1
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10111013
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1013.11010.71011.5
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Dayville, CT
Air quality
42
AQI
Good
-2 in 6h

Ozone at AQI 42 now. AQI flat over the last 6 hours (within ±3 points). With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 19 by mid-afternoon.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5Good
3.7μg/m³
PM 10Good
5μg/m³
NO₂Good
6μg/m³
OzoneDRIVERModerate
89μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 42 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 19 by mid-afternoon.

Present
AQI 42
UV peak
3.3 at 1 PM
Sky at peak
clear
Projected peak
AQI 19
Dayville, CT
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
74.4mi
UNLIMITED
142 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
05:34 UTC ·Dayville, CT · NOAA NESDIS / STAR · 21696x21696 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
05:34 UTC ·Dayville, CT · NOAA NESDIS / STAR · 5-min cadence · 10000x6000 px
Dayville, CT
Satellite · infrared · animated
Dayville, CT
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Dayville, CT
Almanac · Thursday, June 4
A summer fog for fair, a winter fog for rain.
Civil dawn
8:41 AM
Sunrise
5:13 AM
Daylight
15h 05m
Sunset
8:18 PM
Civil dusk
12:53 AM
Planting note
Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Dayville, CT
The moon
Waning Gibbous
87% illuminated
Moonrise
3:21 AM
Moonset
12:40 PM
In sign
♑︎ Capricorn
Dayville, CT
Microseason
Jun 1–5

Fireflies rise from the lawn

bird
Jan 142% of the yearDec 31

Read this microseason across nine climate regions →

Dayville at a glance

  • Today vs. normal: 15°F below the seasonal normal for this latitude
  • Last frost: April 27 (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.

ZIP codes in Dayville

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.