Long Island Sound near Bridgeport Harbor (IN MLLW)
8.3 mi- Level
- 4.2 ft
Forecast peak 9.1 ft Tue 12 PM
Reading from Sat 6:36 AM · NWS gauge page
1 active weather alert
Frost Advisory
Ends in 52 min
- When
- Until 9 AM EDT Saturday.
- Where
- In Connecticut, Southern Fairfield, Southern Middlesex, Southern New Haven, and Southern New London Counties. In New York, Southern Westchester County.
Issued for this forecast zone · National Weather Service Upton NY
What, impacts and precautionsHide details
What
Temperatures as low as the mid 30s will result in frost formation.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Southern Fairfield; Southern New Haven; Southern Middlesex; Southern New London; Southern Westchester
See it on weather.gov (opens in a new tab)
Observed 7:40 AM EDT at KBDR
Coleytown, CT weather
Sunny and 41°5°.
Today: low 37°3° (likely 36°2° to 40°4°), high 61°16° (likely 60°16° to 61°16°).
Now 41°5°
Sunny · Feels like 37°3°
- Wind
- 6 mph9 km/h
- From the north. Up to 6 mph9 km/h through 8 PM
- Dew point
- 32°0°
- Dry · up to 41°5° by 5 PM (comfortable)
- UV index
- 0Low
- Moderate 12–4 PM · peak 4
- Air today
- 50Good
- EPA forecast · PM2.5 (fine particles)
- Pressure
- 30.53 inHg1034 hPa
- Rising slowly · +0.03 inHg+1.0 hPa in 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
This morningUp to 54°12° by 11 AM · Mostly cloudy
This afternoonNear 59°15° · Mostly cloudy
TonightDown to 39°4° by 3 AM · Clear
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 4 PM · Clear
Tomorrow nightDown to 40°4° by 5 AM · Clear
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 8a | Sunny | 38°3° (likely 37°3° to 41°5°) | 38°3° | 0% | 3 mph5 km/h from N, gusts 8 mph12 km/h | 89% | 39% | 0 |
| Sat 9a | Partly sunny | 43°6° (likely 43°6° to 46°8°) | 43°6° | 0% | 3 mph5 km/h from N, gusts 7 mph11 km/h | 82% | 68% | 1 |
| Sat 10a | Mostly cloudy | 49°9° (likely 48°9° to 51°11°) | 49°9° | 0% | 3 mph5 km/h from N, gusts 5 mph8 km/h | 68% | 59% | 2 |
| Sat 11a | Cloudy | 54°12° (likely 53°12° to 55°13°) | 54°12° | 0% | 3 mph5 km/h from N, gusts 6 mph9 km/h | 57% | 76% | 2 |
| Sat 12p | Mostly cloudy | 58°14° (likely 56°13° to 58°14°) | 58°14° | 0% | 3 mph5 km/h from W, gusts 6 mph9 km/h | 49% | 66% | 3 |
| Sat 1p | Cloudy | 59°15° (likely 58°14° to 60°16°) | 59°15° | 0% | 5 mph8 km/h from SW, gusts 6 mph9 km/h | 45% | 75% | 4 |
| Sat 2p | Cloudy | 60°16° (likely 60°16° to 61°16°) | 60°16° | 0% | 5 mph8 km/h from SW, gusts 6 mph9 km/h | 44% | 65% | 3 |
| Sat 3p | Cloudy | 60°16° (likely 60°16° to 61°16°) | 60°16° | 0% | 5 mph8 km/h from SW, gusts 6 mph10 km/h | 44% | 63% | 3 |
| Sat 4p | Cloudy | 60°16° (likely 60°16° to 61°16°) | 60°16° | 0% | 3 mph5 km/h from SW, gusts 6 mph10 km/h | 46% | 65% | 2 |
| Sat 5p | Partly sunny | 59°15° (likely 58°14° to 60°16°) | 59°15° | 0% | 3 mph5 km/h from SW, gusts 7 mph11 km/h | 51% | 44% | 1 |
| Sat 6p | Mostly clear | 56°13° (likely 53°12° to 57°14°) | 56°13° | 0% | 3 mph5 km/h from W, gusts 6 mph10 km/h | 57% | 19% | 0 |
| Sat 7p | Mostly clear | 52°11° (likely 48°9° to 54°12°) | 52°11° | 0% | 2 mph3 km/h from NW, gusts 5 mph9 km/h | 66% | 9% | 0 |
| Sat 8p | Clear | 49°9° (likely 46°8° to 53°12°) | 49°9° | 0% | 2 mph3 km/h from NW, gusts 5 mph8 km/h | 74% | 0% | 0 |
| Sat 9p | Clear | 46°8° (likely 44°7° to 51°11°) | 46°8° | 0% | 1 mph2 km/h from N, gusts 4 mph7 km/h | 76% | 0% | 0 |
| Sat 10p | Clear | 44°7° (likely 43°6° to 50°10°) | 44°7° | 0% | 1 mph2 km/h from NW, gusts 4 mph7 km/h | 82% | 0% | 0 |
| Sat 11p | Clear | 43°6° (likely 42°6° to 47°8°) | 43°6° | 0% | 1 mph2 km/h from NW, gusts 5 mph8 km/h | 82% | 0% | 0 |
| Sun 12a | Clear | 42°6° (likely 41°5° to 45°7°) | 42°6° | 0% | 1 mph2 km/h from NW, gusts 5 mph9 km/h | 82% | 0% | 0 |
| Sun 1a | Clear | 41°5° (likely 41°5° to 44°7°) | 41°5° | 0% | 1 mph2 km/h from N, gusts 5 mph8 km/h | 85% | 1% | 0 |
| Sun 2a | Clear | 40°4° (likely 40°4° to 43°6°) | 40°4° | 0% | 2 mph3 km/h from N, gusts 6 mph9 km/h | 85% | 5% | 0 |
| Sun 3a | Clear | 39°4° (likely 39°4° to 43°6°) | 39°4° | 0% | 2 mph3 km/h from N, gusts 6 mph10 km/h | 89% | 9% | 0 |
| Sun 4a | Clear | 39°4° (likely 39°4° to 42°6°) | 39°4° | 0% | 2 mph3 km/h from N, gusts 7 mph11 km/h | 89% | 10% | 0 |
| Sun 5a | Clear | 39°4° (likely 38°3° to 41°5°) | 39°4° | 0% | 2 mph3 km/h from N, gusts 7 mph12 km/h | 89% | 10% | 0 |
| Sun 6a | Clear | 38°3° (likely 38°3° to 41°5°) | 38°3° | 0% | 2 mph3 km/h from N, gusts 8 mph12 km/h | 89% | 10% | 0 |
| Sun 7a | Sunny | 38°3° (likely 38°3° to 40°4°) | 38°3° | 0% | 3 mph5 km/h from N, gusts 8 mph13 km/h | 85% | 9% | 0 |
| Sun 8a | Sunny | 39°4° (likely 38°3° to 42°6°) | 39°4° | 0% | 3 mph5 km/h from N, gusts 8 mph12 km/h | 85% | 7% | 0 |
| Sun 9a | Sunny | 44°7° (likely 44°7° to 47°8°) | 44°7° | 0% | 2 mph3 km/h from N, gusts 7 mph12 km/h | 76% | 0% | 1 |
| Sun 10a | Sunny | 53°12° (likely 52°11° to 54°12°) | 53°12° | 0% | 2 mph3 km/h from NW, gusts 5 mph8 km/h | 59% | 0% | 2 |
| Sun 11a | Sunny | 57°14° (likely 57°14° to 59°15°) | 57°14° | 0% | 2 mph3 km/h from NW, gusts 4 mph7 km/h | 55% | 0% | 3 |
| Sun 12p | Sunny | 60°16° (likely 60°16° to 62°17°) | 60°16° | 0% | 3 mph5 km/h from W, gusts 5 mph7 km/h | 49% | 0% | 4 |
| Sun 1p | Sunny | 63°17° (likely 63°17° to 64°18°) | 63°17° | 0% | 3 mph5 km/h from W, gusts 5 mph7 km/h | 43% | 0% | 4 |
| Sun 2p | Sunny | 63°17° (likely 62°17° to 65°18°) | 63°17° | 0% | 3 mph5 km/h from SW, gusts 6 mph10 km/h | 43% | 0% | 4 |
| Sun 3p | Sunny | 63°17° (likely 62°17° to 65°18°) | 63°17° | 0% | 3 mph5 km/h from SW, gusts 6 mph10 km/h | 43% | 0% | 3 |
| Sun 4p | Sunny | 64°18° (likely 62°17° to 64°18°) | 64°18° | 0% | 3 mph5 km/h from SW, gusts 6 mph10 km/h | 41% | 0% | 2 |
| Sun 5p | Sunny | 62°17° (likely 59°15° to 63°17°) | 62°17° | 0% | 3 mph5 km/h from SW, gusts 7 mph11 km/h | 46% | 0% | 1 |
| Sun 6p | Clear | 59°15° (likely 54°12° to 59°15°) | 59°15° | 0% | 2 mph3 km/h from SW, gusts 7 mph12 km/h | 51% | 0% | 0 |
| Sun 7p | Clear | 55°13° (likely 52°11° to 56°13°) | 55°13° | 0% | 1 mph2 km/h from SW, gusts 7 mph11 km/h | 61% | 0% | 0 |
| Sun 8p | Clear | 50°10° (likely 49°9° to 55°13°) | 50°10° | 0% | 1 mph2 km/h from W, gusts 8 mph12 km/h | 74% | 0% | 0 |
| Sun 9p | Clear | 48°9° (likely 47°8° to 55°13°) | 48°9° | 0% | 1 mph2 km/h from W, gusts 6 mph10 km/h | 77% | 0% | 0 |
| Sun 10p | Clear | 46°8° (likely 45°7° to 51°11°) | 46°8° | 0% | 1 mph2 km/h from W, gusts 7 mph12 km/h | 83% | 0% | 0 |
| Sun 11p | Clear | 45°7° (likely 44°7° to 50°10°) | 45°7° | 0% | 1 mph2 km/h from W, gusts 7 mph11 km/h | 82% | 0% | 0 |
| Mon 12a | Clear | 44°7° (likely 42°6° to 49°9°) | 44°7° | 0% | 1 mph2 km/h from W, gusts 6 mph9 km/h | 86% | 0% | 0 |
| Mon 1a | Clear | 43°6° (likely 42°6° to 48°9°) | 43°6° | 0% | 2 mph3 km/h from W, gusts 6 mph10 km/h | 86% | 0% | 0 |
| Mon 2a | Clear | 42°6° (likely 41°5° to 47°8°) | 42°6° | 0% | 2 mph3 km/h from W, gusts 6 mph9 km/h | 89% | 0% | 0 |
| Mon 3a | Clear | 41°5° (likely 39°4° to 46°8°) | 41°5° | 0% | 2 mph3 km/h from W, gusts 6 mph9 km/h | 92% | 0% | 0 |
| Mon 4a | Clear | 41°5° (likely 40°4° to 45°7°) | 41°5° | 0% | 3 mph5 km/h from W, gusts 6 mph9 km/h | 89% | 0% | 0 |
| Mon 5a | Clear | 40°4° (likely 40°4° to 45°7°) | 40°4° | 0% | 3 mph5 km/h from W, gusts 7 mph11 km/h | 92% | 2% | 0 |
| Mon 6a | Clear | 39°4° (likely 39°4° to 45°7°) | 39°4° | 0% | 3 mph5 km/h from W, gusts 6 mph9 km/h | 96% | 3% | 0 |
| Mon 7a | Sunny | 39°4° (likely 39°4° to 45°7°) | 36°2° | 0% | 5 mph8 km/h from W, gusts 5 mph8 km/h | 96% | 9% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Cloudy. High 61°16°, low 37°3°. Typical 62°17° / 45°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Mostly cloudy, 38°3°Dry
Afternoon
noon–6 PM
Cloudy, 60°16°Dry
Evening
6 PM–midnight
Clear, 49°9°Dry
Overnight
midnight–6 AM
Clear, 39°4°Dry
Official NWS forecast
Today: Patchy frost before 9am. Partly sunny. High near 61, with temperatures falling to around 59 in the afternoon. Northwest wind around 5 mph.
Tonight: Patchy frost after 2am. Mostly clear. Low around 37, with temperatures rising to around 39 overnight. Northwest wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 60°16°–61°16°
- Low, likely
- 36°2°–40°4°
- Typical high / low
- 62°17° / 45°7°
- Wind
- 6 mph10 km/h, gusts 12 mph19 km/h
- UV peak
- 4
Tomorrow, Oct 25. Sunny. High 65°18°, low 39°4°. Typical 61°16° / 45°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 39°4°Dry
Afternoon
noon–6 PM
Sunny, 64°18°Dry
Evening
6 PM–midnight
Clear, 50°10°Dry
Overnight
midnight–6 AM
Clear, 40°4°Dry
Official NWS forecast
Day: Areas of frost before 9am. Sunny. High near 65, with temperatures falling to around 62 in the afternoon. West wind around 3 mph.
Night: Patchy frost after 5am. Clear, with a low around 39. West wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 63°17°–65°18°
- Low, likely
- 38°3°–40°4°
- Typical high / low
- 61°16° / 45°7°
- Wind
- 7 mph11 km/h, gusts 13 mph20 km/h
- UV peak
- 4
Monday, Oct 26. Sunny. High 68°20°, low 44°7°. Typical 61°16° / 45°7°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 43°6°Dry
Afternoon
noon–6 PM
Sunny, 67°19°Dry
Evening
6 PM–midnight
Clear, 56°14°Dry
Overnight
midnight–6 AM
Clear, 50°10°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy frost before 9am. Sunny. High near 68, with temperatures falling to around 66 in the afternoon. West wind around 6 mph.
Night: Mostly clear. Low around 44, with temperatures rising to around 46 overnight.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 66°19°–68°20°
- Low, likely
- 40°4°–44°7°
- Typical high / low
- 61°16° / 45°7°
- Wind
- 7 mph12 km/h, gusts 14 mph22 km/h
- UV peak
- 4
Tuesday, Oct 27. Sunny. High 58°14°, low 35°2°. Typical 60°16° / 44°7°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 47°8°Dry
Afternoon
noon–6 PM
Sunny, 57°14°Dry
Evening
6 PM–midnight
Clear, 48°9°Dry
Overnight
midnight–6 AM
Clear, 40°4°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 58.
Night: Mostly clear, with a low around 35.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 56°13°–60°16°
- Low, likely
- 35°2°–44°7°
- Typical high / low
- 60°16° / 44°7°
- Wind
- 12 mph19 km/h, gusts 26 mph42 km/h
- UV peak
- 4
Wednesday, Oct 28. Partly sunny. High 57°14°, low 44°7°. Typical 60°16° / 44°7°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 39°4°Dry
Afternoon
noon–6 PM
Mostly sunny, 56°13°Dry
Evening
6 PM–midnight
Cloudy, 50°10°Dry
Overnight
midnight–6 AM
Clear, 47°8°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 57.
Night: Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 53°12°–58°14°
- Low, likely
- 37°3°–44°7°
- Typical high / low
- 60°16° / 44°7°
- Wind
- 8 mph12 km/h, gusts 15 mph24 km/h
- UV peak
- 4
Thursday, Oct 29. Partly sunny. High 65°18°, low 49°9°. Typical 60°16° / 44°7°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 47°8°Dry
Afternoon
noon–6 PM
Sunny, 63°17°Dry
Evening
6 PM–midnight
Clear, 56°13°Dry
Overnight
midnight–6 AM
Clear, 51°11°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
Night: Partly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 62°17°–65°18°
- Low, likely
- 44°7°–49°9°
- Typical high / low
- 60°16° / 44°7°
- Wind
- 11 mph18 km/h, gusts 27 mph43 km/h
- UV peak
- 4
Friday, Oct 30. Partly sunny. High 67°19°, low 44°7°. Typical 59°15° / 43°6°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 50°10°Dry
Afternoon
noon–6 PM
Sunny, 70°21°Dry
Evening
6 PM–midnight
Clear, 58°14°Dry
Overnight
midnight–6 AM
Cloudy, 50°10°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 67°19°–71°22°
- Low, likely
- 44°7°–51°11°
- Typical high / low
- 59°15° / 43°6°
- Wind
- 12 mph19 km/h, gusts 26 mph42 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 66°19°, low 47°8°. Typical 59°15° / 43°6°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 49°9°Dry
Afternoon
noon–6 PM
Sunny, 66°19°Dry
Evening
6 PM–midnight
Clear, 54°12°Dry
Overnight
midnight–6 AM
Partly cloudy, 48°9°Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 59°15°–72°22°
- Low, likely
- 42°6°–49°9°
- Typical high / low
- 59°15° / 43°6°
- Wind
- 11 mph17 km/h, gusts 24 mph39 km/h
- UV peak
- 4
Sunday, Nov 1. Cloudy. High 64°18°, low 49°9°. Typical 59°15° / 43°6°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 49°9°Dry
Afternoon
noon–6 PM
Sunny, 64°18°Dry
Evening
6 PM–midnight
Mostly clear, 56°13°20% chance
Overnight
midnight–6 AM
Partly cloudy, 51°11°30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 56°13°–69°21°
- Low, likely
- 37°3°–53°12°
- Typical high / low
- 59°15° / 43°6°
- Wind
- 9 mph14 km/h, gusts 22 mph35 km/h
- UV peak
- 4
Monday, Nov 2. Cloudy. High 62°17°, low 51°11°. Typical 58°14° / 42°6°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 55°13°30% chance
Afternoon
noon–6 PM
Cloudy, 63°17°20% chance
Evening
6 PM–midnight
Cloudy, 54°12°20% chance · 0.01 in0.4 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 53°12°–67°19°
- Low, likely
- 39°4°–58°14°
- Typical high / low
- 58°14° / 42°6°
- Wind
- 8 mph14 km/h, gusts 20 mph32 km/h
- UV peak
- 2
The outlook
Today
Dry, high 61°, low 37°.
Tomorrow
Dry, high 65°, low 39°, warming up.
Monday
Dry, high 68°, low 44°, warming up.
Rest of week
Mostly dry, highs 57–67°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (OKX) (opens in a new tab)
What changed since yesterday
No meaningful changes from yesterday’s forecast.
Radar
Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view
Rivers
NOAA river gauges within 25 mi
Below flood stage
Housatonic River at Stevenson
17 mi- Level
- 2.6 ft
- Flow
- 506 cfs
Forecast peak 6.7 ft Sat 8 PM
Reading from Sat 6:30 AM · NWS gauge page
Rippowam River at Stamford
13 mi- Level
- 1.5 ft
Reading from Sat 5:45 AM · NWS gauge page
Long Island Sound at Stamford (IN MLLW)
14 mi- Level
- 3.8 ft
Reading from Sat 6:30 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 65% less heating than a typical week.
This week 31Typical 89
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 24
- h below 17°F
- 0
- h below 5°F
- 0
47, 17 and 5°F are the test points heat pumps are rated at. About 15 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 32°F).
Open the windows?
Today, 2:00 PM–4:00 PM
Good stretch to open the windows.
Is this typical?
Igor I Sikorsky Memorial Airport · official normals 1991–2020 · records 1948–2026
Oct 24, today vs a typical year
Today’s expected high is about typical for the date.
- Normal high / low
- 62°17° / 45°7°
- Forecast high / low
- 61°16° / 37°3°
- Record high
- 76°24° in 1970
- Record low
- 26°−3° in 1969
Last 7 days vs normal
On average 2°1° colder than normal (daily mean temperature).
- −8°−4°SunOct 18
- −3°−2°MonOct 19
- ±0°TueOct 20
- +2°+1°WedOct 21
- +2°+1°ThuOct 22
- −2°−1°FriOct 23
- —SatOct 24
Coleytown weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:15 AM, sunset 5:59 PM.
- Daylight
- 10 h 44 min
- Losing 2 min 35 s a day; shortest Dec 21, 1 h 32 min less
- Golden hour
- 5:20–6:16 PM
- Morning 6:57–7:53 AM
- Blue hour
- 6:16–6:27 PM
- Morning 6:47–6:57 AM; first light 6:47 AM
Stars tonight? Fair
Clear 6:27 PM–6:48 AM, but the moon is 99% lit and up.
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 5:25 AM · rises 4:56 PM
- Full moon
- Oct 26
- New moon
- Nov 9
