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

Compo, Connecticut Weather

Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →

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

Compo, CT
Sunday, July 5 at 12:35 AM
75
°
Overcast
Feels like
79°
Humidity
87%
Wind
9 mph
Sunrise
1:27 AM
Sunset
4:29 PM
Compo, CT
Hour by hour · 24h
24-Hour ForecastCompo, CT: 24-hour forecast. Temperatures range from 73 to 80 degrees Fahrenheit with a 63% chance of precipitation at 1 AM.
L 73°H 80°
Compo, CT
7-day forecast
  1. Today
    Jul 5
    Rain
    63%
    0.26″
    80°73°
  2. Monday
    Jul 6
    Heavy Rain
    90%
    1.8″
    73°63°-7°
  3. Tuesday
    Jul 7
    Drizzle
    86%
    0.06″
    66°61°-7°
  4. Wednesday
    Jul 8
    Overcast
    27%
    77°55°+11°
  5. Thursday
    Jul 9
    Light Drizzle
    21%
    0.01″
    83°64°+6°
  6. Friday
    Jul 10
    Light Drizzle
    47%
    0.02″
    90°69°+7°
  7. Saturday
    Jul 11
    Overcast
    27%
    86°63°-4°
Compo, CT
Anemometer · 24h winds · from true
NESW
From · True
SSW
212° · backing 58°
Direction
SSW
212°
Sustained
9
mph
Gust
18
mph
Peak 24h
24
avg 7
Beaufort · 3 · GENTLE 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 7 · pk 24 @ 9:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 175SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 58° from the ssw.
Compo, CT
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1012.8
+0.5 mb in 3h · steady · 29.91 inHg
Now
1012.8
mb
3h
+0.5
mb
12h
-0.1
mb
24h
-0.1
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10081013
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1011.91008.01011.4
−24h−18h−12h−6hnow
Air sits at the threshold — small shifts decide the day.
Compo, CT
Air quality
44
AQI
Good
-29 in 6h

AQI 44 (Good), driven by Ozone. AQI down 29 over the last 6 hours — air quality is improving sharply. Ozone at AQI 30. Overcast through the UV peak window (cloud cover ~97%) — afternoon ozone should stay flat.

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

PM 2.5Good
4.8μg/m³
PM 10Good
5μg/m³
NO₂Good
9μg/m³
OzoneDRIVERModerate
64μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 30. Overcast through the UV peak window (cloud cover ~97%) — 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

PM scrubbed by 2 hours of recent rain — PM2.5 down to 4.8 µg/m³, PM10 to 4.9 µg/m³.

PM2.5/PM10
0.98
Wind
light
Recent rain
2h in last 6h
Pattern
washed out
Compo, CT
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
31.6mi
UNLIMITED
89 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
04:35 UTC · Compo, CT · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
04:35 UTC · Compo, CT · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Compo, CT
Satellite · infrared · animated
Compo, CT
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Compo, CT
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
4:53 AM
Sunrise
1:27 AM
Daylight
15h 02m
Sunset
4:29 PM
Civil dusk
9:03 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Compo, CT
The moon
Waning Gibbous
76% illuminated
Moonrise
11:11 PM
Moonset
11:03 AM
In sign
♓︎ Pisces
Compo, CT
Microseason
Jul 1–5

Cicadas claim the afternoon

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Compo at a glance

  • Today vs. normal: 4°F above the seasonal normal for this latitude
  • Last frost: April 23 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

15-Day Forecast — Compo

  1. Sun80°73°63%
  2. Mon73°63°90%
  3. Tue66°61°86%
  4. Wed77°55°27%
  5. Thu83°64°21%
  6. Fri90°69°47%
  7. Sat86°63°27%
  8. Sun79°63°23%
  9. Mon83°58°18%
  10. Tue84°64°21%
  11. Wed88°68°36%
  12. Thu85°65°34%
  13. Fri83°61°30%
  14. Sat86°63°32%
  15. Sun92°73°35%

Forecast data from Open-Meteo (CC BY 4.0).

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.

SPC Convective Outlook

Storm Prediction Center — Compo

SPC has placed Compo in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.

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.

ZIP codes in Compo

  • 06880
  • 06888

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.