Broad Brook, Connecticut Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Broad Brook weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle23%0.04″93°77°—
- SundayJul 5Drizzle41%0.04″87°70°-6°
- MondayJul 6Rain70%2.6″73°61°-14°
- TuesdayJul 7Heavy Rain62%3.2″61°57°-12°
- WednesdayJul 8Overcast——83°50°+22°
- ThursdayJul 9Partly Cloudy16%—86°60°+3°
- FridayJul 10Light Drizzle37%—88°66°+2°
AQI 40 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 49 now. With UV 5.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 25 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 49 now. With UV 5.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 25 around 1 PM.
- Present
- AQI 49
- UV peak
- 5.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 6.9 µg/m³ (AQI 38) with a 0.93 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- Wind
- light
- 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
- 10:47 PM
- Moonset
- 9:51 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Broad Brook at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 06016
16-Day Forecast — Broad Brook
- Sat93°77°23%
- Sun87°70°41%
- Mon73°61°70%
- Tue61°57°62%
- Wed83°50°8%
- Thu86°60°16%
- Fri88°66°37%
- Sat77°66°24%
- Sun74°61°25%
- Mon67°61°16%
- Tue70°62°20%
- Wed84°61°26%
- Thu95°68°29%
- Fri94°68°34%
- Sat90°70°45%
- Sun85°61°40%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Broad Brook
SPC includes Broad Brook in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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.
Microseason · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
July is Broad Brook's warmest stretch (~73°F) and January its coldest (~25°F); precipitation crests in October at 4.7 inches and ebbs in February to 2.6 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 25° | 2.8″ | 5 |
| February | 28° | 2.6″ | 6 |
| March | 36° | 3.4″ | 6 |
| April | 48° | 4.1″ | 7 |
| May | 59° | 3.7″ | 8 |
| June | 67° | 4.4″ | 8 |
| July | 73° | 4.2″ | 7 |
| August | 71° | 3.7″ | 7 |
| September | 63° | 4.6″ | 6 |
| October | 51° | 4.7″ | 7 |
| November | 41° | 3.5″ | 6 |
| December | 31° | 3.6″ | 7 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Broad Brook's January averages 25°F and July 73°F — 48°F apart — while precipitation totals roughly 45.2 inches over some 78 days.
Rainfall in Broad Brook stays even across the calendar: October tops out at 4.7 inches over 6.7 rainy days, and February still logs 2.6 inches across 5.8 — a narrow range for Broad Brook. It is a balanced pattern Broad Brook shares with places like Southwood Acres, CT, Rockville, CT and Hazardville, CT.
The cool-season window in Broad Brook starts at mid-April, when nights stop freezing — think kale, peas, spinach, and parsnips. Hold Broad Brook's tender crops — tomatoes, peppers, basil — until 10-14 days past Broad Brook's last frost. Around mid-November, freezing nights resume in Broad Brook and tender crops must come in. In Broad Brook, low spots run 4-7°F colder than nearby slopes, nudging Broad Brook's frost dates a week.
Similar climates: Southwood Acres, CT, Rockville, CT, Hazardville, CT, Thompsonville, CT, Sherwood Manor, CT.
Frequently asked
- When does it freeze in Broad Brook?
- Broad Brook's last spring frost lands near mid-April, and in Broad Brook the first fall frost follows around mid-November.
- What is the rainy season in Broad Brook?
- Rainfall in Broad Brook peaks in October near 4.7 inches, out of about 45 inches annually.
- What is the warmest month in Broad Brook?
- July is Broad Brook's warmest month, averaging about 73°F.
- What is the coldest month in Broad Brook?
- Broad Brook bottoms out in January, with a mean near 25°F.
- When can I start a vegetable garden in Broad Brook?
- Broad Brook's last frost (mid-April) cues hardy greens; in Broad Brook, hold heat-lovers two weeks past.
- How many rainy days does Broad Brook get?
- Broad Brook records around 78 days of measurable precipitation annually.
- What hardiness zone is Broad Brook?
- Broad Brook's USDA zone comes from its January mean (25°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Broad Brook?
- Broad Brook's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Broad Brook?
- See this week's day-by-day rain chances for Broad Brook in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Broad Brook?
- Current conditions for Broad Brook and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Broad Brook forecast updated?
- The Broad Brook forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Broad Brook?
- Today's sunrise and sunset times for Broad Brook are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Broad Brook?
- The next few days in Broad Brook's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Broad Brook's warm-summer humid continental climate in Connecticut pairs 25°F Januarys with 73°F Julys, 48°F apart across the seasons.
Broad Brook sees close to 45 inches of precipitation annually, falling across some 78 wet days.
At 41.9°N, Broad Brook's 48°F summer-to-winter swing sets when Broad Brook's gardens wake and when frost returns.
ZIP codes in Broad Brook
- 06016