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Colchester, CT Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Saturday
Sunny, with a high near 56.
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Saturday Night
Mostly clear, with a low around 36.
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Sunday
Sunny, with a high near 62.
National Weather Service forecast updated 4 days ago.
Hourly
Hourly forecast- Now54°
- 6 PM52°
- 7 PM49°
- 8 PM46°
- 9 PM44°
- 10 PM41°
- 11 PM40°
- Sun12 AM39°
- 1 AM39°
- 2 AM39°
- 3 AM38°
- 4 AM37°
- 5 AM37°
- 6 AM37°
- 7 AM37°
- 8 AM39°
- 9 AM43°
- 10 AM47°
- 11 AM52°
- 12 PM55°
- 1 PM58°
- 2 PM60°
- 3 PM61°
- 4 PM61°
Daily forecast
Details- TueOct 20Sunny42°65°
- WedOct 21Mostly Sunny39°58°
- ThuOct 22Mostly Sunny38°63°
- FriOct 23Sunny34°55°
- TodayOct 24Sunny36°56°
- SunOct 25Sunny41°62°
- MonOct 26Sunny45°66°
- TueOct 27Light rain0.09 in44°63°
- WedOct 28Cloudy0.02 in43°53°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Connecticut
More weather news-
Cold Halloween night expected in Connecticut. See full holiday forecastAccuWeather just released its Halloween weekend forecast, predicting "a spooky mix of chilly temperatures, gusty winds, rain and even mountain snow" across the country. While the weather service predicts New England…
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A sunny, breezy Thursday in Connecticut before temps drop overnight. Here's the latest.Autumn colors surround Bantam Lake in Morris Oct. 15, 2026. Thursday will bring another day of sunny, breezy weather to Connecticut before chilly temperatures arrive overnight, according to the National Weather Service…
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Freeze Warning Issued as Temperatures Drop Near Freezing in ConnecticutAt SSBCrack News, our dedicated editorial team brings you the latest and most reliable updates on Defence, Geopolitics, Military Affairs, Science, and Technology. Driven by a passion for national security and strategic…
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Will Connecticut’s Halloween be warmer or colder than normal? Here’s the early outlookCostumed children and their parents pack Main Street as they trick or treat at downtown businesses during the annual Halloween Parade in Westport, Conn. on Tuesday, October 29, 2024. The weather will trend close to…
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Here's the latest on the nor'easter brewing offshore this week, and what it means for ConnecticutSatellite imagery shows a nor'easter off the eastern coast of the United States Wednesday, Oct. 21, 2026. A nor'easter continues to churn off the East Coast this week, threatening to bring coastal flooding to parts of…
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Temperatures to Drop as Cold Front Approaches ConnecticutHome » Trending » Temperatures to Drop as Cold Front Approaches Connecticut This morning, temperatures across Connecticut are showing an uptick compared to yesterday, rising between 2 to 10 degrees. The early hours see…
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Connecticut stays dry Wednesday as nor’easter passes offshore. Here's what to expect.Temperatures turn slightly cooler for Connecticut Wednesday, while a nor'easter meandering off the East Coast may bring gusty winds. Highs will top out in the upper 50s and lower 60s Wednesday — down from the upper 60s…
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Nor’easter will stay offshore, but Connecticut faces gusty winds WednesdayA nor'easter swirling off the East Coast will stay offshore as it moves north this week, bringing some strong winds to Connecticut. A nor'easter is hanging out off the East Coast of the U.S. this week, and while it's…
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A warmer Tuesday in Connecticut with a mix of sun and clouds. Here's when the chill sets in again.Leaves begin to change color at a home on Sport Hill Road in Easton on Oct. 7, 2026. Another day of seasonable fall weather is in store for Connecticut Tuesday — but expect it to be a little cloudier and breezier than…
- Wfsb says Connecticut stays mostly dry as offshore storm nears
Wfsb says Connecticut should stay mostly dry and mild this week as a nor’easter strengthens offshore, with only a low chance of rain late Wednesday and Wednesday night in southeastern Connecticut. Most of the state…
Air quality
Forecast
- SatGood (50)
- SunModerate (52)
- MonModerate (60)
Middletown, CT reporting area. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyStorrs, records since 1888. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- New Haven 58 km
- Hartford 36 km
- Waterbury 60 km
- New Britain 38 km
- West Hartford 40 km
- Bristol 52 km
- Meriden 40 km
- Hamden 51 km
- East Hartford 33 km
- Middletown 27 km
- Enfield 49 km
- Southington 45 km
Forecasters' discussion
From the National Weather Service office in OKX, issued 2 hrs ago
What Has Changed
Frost Advisory issued tonight for the CT coast and far eastern LI.
Key Messages
1) Frost Advisory in effect tonight for coastal CT and far eastern LI.
2) High pressure largely in control through the upcoming week.
Key Message 1
High pressure will remain over the area tonight with light winds and clear skies. Coastal CT and eastern portions of Suffolk County on LI will likely see another night of lows in the mid 30s and as low as 25 to 30 across the Pine Barrens region of LI. While the growing season has ended across the interior, it has yet to do so at the coast (Nov 1 or 11). Thus, a frost advisory in in effect for these areas once again. The only change this go around was to remove coastal Westchester.
Elsewhere, lows will range from the upper 20s across some of the interior, to as warm as the 40s across the NYC metro. These readings are about 3 to 5 degrees below normal for most locations.
Warm advection with building heights aloft should result in warmer temperatures Sunday night and less coverage of frost.
.KEY MESSAGE 2... An anomalously strong upper ridge from the Lower Mississippi Valley into the Great Lakes will translate east into Monday. A the same time, a strong upper low tracking across central and eastern Canada will suppress the upper ridge to the south, sending a cold front across the area Monday night. The frontal passage will be dry. Otherwise, the forecast area will be dominated by high pressure through the week.
Highs will be in the 60s Sunday and Monday, possibly getting to around 70 in the NYC/NJ metro on Monday. It will then cool down behind the cold front Monday night with highs mainly in the 50s for Tuesday and Wednesday. This will be a few degrees above normal. Frost coverage at the coast, where the growing season remains in effect, looks to be patchy at this time.
It warms up for the second half of the week with temperatures projecting to be well above normal by next Friday.
Outlook For 18z Sunday Through Thursday
Sunday-Thursday: VFR.
Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.