Frost Advisory
Starts in 3 h 14 min
When
From midnight tonight to 9 AM EDT Sunday.
Where
In Connecticut, Southern Fairfield, Southern Middlesex, Southern New Haven, and Southern New London Counties. In New York, Northeast Suffolk and Southeast Suffolk Counties.
Issued for this forecast zone · National Weather Service Upton NY
What, impacts and precautionsHide details
What
Temperatures in the mid 30s, and locally as low 25 to 30 in parts of the Pine Barrens of Long Island, 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; Northeast Suffolk; Southeast Suffolk
See it on weather.gov (opens in a new tab)

Observed 8:20 PM EDT at KGON

Westbrook Center, CT weather

Clear and 43°6°.

Mostly agree

Now 43°6°

Clear

Wind: 5 mph7 km/h; From the north-northeast. Light through 8 AM
Dew point: 41°5°; Comfortable
Humidity: 93%; Air 43°6°, dew point 41°5° · fog or dew likely
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air today: 39Good; EPA forecast · PM2.5 (fine particles)
Pressure: 30.52 inHg1034 hPa; Rising slowly · +0.02 inHg+0.5 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

4°2° warmer than this time yesterday (40°4° then, 44°7° now)

Good hours for

Low 39°4° tonight at 5 AM
Above 50°10° tomorrow by 10 AM
High 63°17° tomorrow at 4 PM

TonightDown to 39°4° by 5 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 63°17° by 4 PM · Clear
Tomorrow nightDown to 48°9° by 4 AM · Clear
Monday morningUp to 60°16° by 11 AM · Clear
Monday afternoonNear 64°18° · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 8p	Clear	50°10° (likely 47°8° to 51°11°)	50°10°	0%	1 mph2 km/h from NW, gusts 6 mph10 km/h	63%	0%	0
Sat 9p	Clear	48°9° (likely 45°7° to 50°10°)	48°9°	0%	1 mph2 km/h from NW, gusts 6 mph10 km/h	65%	0%	0
Sat 10p	Clear	47°8° (likely 44°7° to 49°9°)	47°8°	0%	1 mph2 km/h from NW, gusts 5 mph8 km/h	65%	0%	0
Sat 11p	Clear	45°7° (likely 43°6° to 45°7°)	45°7°	0%	1 mph2 km/h from NW, gusts 6 mph10 km/h	68%	0%	0
Sun 12a	Clear	44°7° (likely 41°5° to 44°7°)	44°7°	0%	1 mph2 km/h from NW, gusts 6 mph10 km/h	70%	0%	0
Sun 1a	Clear	43°6° (likely 41°5° to 43°6°)	43°6°	0%	2 mph3 km/h from N, gusts 6 mph9 km/h	73%	0%	0
Sun 2a	Clear	41°5° (likely 39°4° to 41°5°)	41°5°	0%	2 mph3 km/h from N, gusts 6 mph9 km/h	79%	0%	0
Sun 3a	Clear	40°4° (likely 38°3° to 40°4°)	40°4°	0%	2 mph3 km/h from N, gusts 5 mph8 km/h	79%	0%	0
Sun 4a	Clear	40°4° (likely 37°3° to 40°4°)	40°4°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	79%	0%	0
Sun 5a	Clear	39°4° (likely 35°2° to 40°4°)	39°4°	0%	2 mph3 km/h from N, gusts 7 mph12 km/h	82%	0%	0
Sun 6a	Clear	39°4° (likely 33°1° to 39°4°)	39°4°	0%	2 mph3 km/h from N, gusts 7 mph12 km/h	82%	6%	0
Sun 7a	Sunny	39°4° (likely 33°1° to 39°4°)	37°3°	0%	3 mph5 km/h from N, gusts 8 mph12 km/h	82%	7%	0
Sun 8a	Sunny	40°4° (likely 33°1° to 40°4°)	38°3°	0%	3 mph5 km/h from N, gusts 7 mph11 km/h	82%	0%	0
Sun 9a	Sunny	46°8° (likely 41°5° to 47°8°)	46°8°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	65%	0%	1
Sun 10a	Sunny	51°11° (likely 50°10° to 54°12°)	51°11°	0%	1 mph2 km/h from N, gusts 4 mph6 km/h	54%	0%	2
Sun 11a	Sunny	55°13° (likely 55°13° to 59°15°)	55°13°	0%	1 mph2 km/h from NW, gusts 3 mph5 km/h	49%	0%	3
Sun 12p	Sunny	58°14° (likely 58°14° to 62°17°)	58°14°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	45%	0%	4
Sun 1p	Sunny	60°16° (likely 60°16° to 64°18°)	60°16°	0%	3 mph5 km/h from W, gusts 8 mph13 km/h	46%	0%	4
Sun 2p	Sunny	61°16° (likely 61°16° to 65°18°)	61°16°	0%	5 mph8 km/h from SW, gusts 8 mph13 km/h	48%	0%	4
Sun 3p	Sunny	62°17° (likely 62°17° to 64°18°)	62°17°	0%	5 mph8 km/h from SW, gusts 9 mph15 km/h	46%	0%	3
Sun 4p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	44%	0%	2
Sun 5p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	48%	0%	1
Sun 6p	Clear	60°16° (likely 54°12° to 60°16°)	60°16°	0%	3 mph5 km/h from SW, gusts 8 mph13 km/h	53%	0%	0
Sun 7p	Clear	58°14° (likely 51°11° to 58°14°)	58°14°	0%	2 mph3 km/h from SW, gusts 7 mph12 km/h	60%	0%	0
Sun 8p	Clear	54°12° (likely 48°9° to 54°12°)	54°12°	0%	2 mph3 km/h from SW, gusts 7 mph11 km/h	71%	0%	0
Sun 9p	Clear	53°12° (likely 47°8° to 53°12°)	53°12°	0%	2 mph3 km/h from SW, gusts 8 mph13 km/h	74%	0%	0
Sun 10p	Clear	52°11° (likely 47°8° to 52°11°)	52°11°	0%	2 mph3 km/h from SW, gusts 9 mph14 km/h	77%	0%	0
Sun 11p	Clear	51°11° (likely 47°8° to 51°11°)	51°11°	0%	2 mph3 km/h from SW, gusts 11 mph17 km/h	80%	0%	0
Mon 12a	Clear	50°10° (likely 46°8° to 50°10°)	50°10°	0%	2 mph3 km/h from W, gusts 10 mph17 km/h	83%	0%	0
Mon 1a	Clear	50°10° (likely 46°8° to 50°10°)	49°9°	0%	3 mph5 km/h from W, gusts 12 mph20 km/h	80%	0%	0
Mon 2a	Clear	49°9° (likely 44°7° to 49°9°)	48°9°	0%	3 mph5 km/h from W, gusts 12 mph20 km/h	83%	0%	0
Mon 3a	Clear	49°9° (likely 43°6° to 49°9°)	48°9°	0%	3 mph5 km/h from W, gusts 12 mph20 km/h	80%	1%	0
Mon 4a	Clear	48°9° (likely 42°6° to 48°9°)	47°8°	0%	3 mph5 km/h from W, gusts 12 mph19 km/h	83%	0%	0
Mon 5a	Clear	48°9° (likely 41°5° to 48°9°)	47°8°	0%	3 mph5 km/h from W, gusts 12 mph19 km/h	83%	0%	0
Mon 6a	Clear	47°8° (likely 40°4° to 47°8°)	46°8°	0%	3 mph5 km/h from W, gusts 11 mph18 km/h	83%	2%	0
Mon 7a	Sunny	48°9° (likely 39°4° to 48°9°)	46°8°	0%	5 mph8 km/h from W, gusts 11 mph18 km/h	77%	3%	0
Mon 8a	Sunny	48°9° (likely 40°4° to 48°9°)	46°8°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	77%	39%	0
Mon 9a	Mostly sunny	51°11° (likely 44°7° to 51°11°)	51°11°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	71%	20%	1
Mon 10a	Sunny	55°13° (likely 52°11° to 56°13°)	55°13°	0%	6 mph10 km/h from W, gusts 8 mph12 km/h	66%	13%	2
Mon 11a	Sunny	60°16° (likely 58°14° to 61°16°)	60°16°	0%	6 mph10 km/h from W, gusts 9 mph14 km/h	60%	2%	3
Mon 12p	Sunny	63°17° (likely 62°17° to 63°17°)	63°17°	0%	7 mph11 km/h from W, gusts 10 mph17 km/h	56%	17%	4
Mon 1p	Sunny	64°18° (likely 63°17° to 65°18°)	64°18°	0%	8 mph13 km/h from W, gusts 12 mph19 km/h	58%	18%	4
Mon 2p	Sunny	65°18° (likely 63°17° to 66°19°)	65°18°	0%	9 mph14 km/h from W, gusts 12 mph19 km/h	58%	13%	4
Mon 3p	Sunny	66°19° (likely 64°18° to 67°19°)	66°19°	0%	9 mph14 km/h from W, gusts 14 mph22 km/h	58%	17%	3
Mon 4p	Sunny	66°19° (likely 63°17° to 66°19°)	66°19°	0%	8 mph13 km/h from W, gusts 14 mph22 km/h	61%	19%	2
Mon 5p	Sunny	65°18° (likely 61°16° to 65°18°)	65°18°	0%	7 mph11 km/h from W, gusts 13 mph21 km/h	65%	7%	1
Mon 6p	Clear	63°17° (likely 58°14° to 63°17°)	63°17°	0%	6 mph10 km/h from W, gusts 8 mph13 km/h	70%	0%	0
Mon 7p	Clear	60°16° (likely 56°13° to 60°16°)	60°16°	0%	6 mph10 km/h from W, gusts 5 mph9 km/h	78%	2%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Partly sunny. High 61°16°, low 38°3°. Typical 62°17° / 47°8°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 39°4°
  Dry
Official NWS forecast
Tonight: Clear, with a low around 38. Northwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
31°−1°–38°3°
Typical high / low
62°17° / 47°8°
Wind
7 mph11 km/h, gusts 15 mph23 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 63°17°, low 47°8°. Typical 61°16° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 63. Northwest wind 1 to 5 mph.
Night: Clear, with a low around 47. West wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
32°0°–47°8°
Typical high / low
61°16° / 47°8°
Wind
8 mph13 km/h, gusts 15 mph25 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 66°19°, low 48°9°. Typical 61°16° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 49°10°
  Dry
Official NWS forecast
Day: Sunny, with a high near 66. West wind 3 to 9 mph.
Night: Mostly clear. Low around 48, with temperatures rising to around 50 overnight. Northwest wind 5 to 8 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–66°19°
Low, likely
38°3°–48°9°
Typical high / low
61°16° / 47°8°
Wind
10 mph17 km/h, gusts 29 mph46 km/h
UV peak
4
Tuesday, Oct 27. Sunny. High 58°14°, low 38°3°. Typical 60°16° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 44°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  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 38.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–58°14°
Low, likely
37°3°–44°7°
Typical high / low
60°16° / 46°8°
Wind
13 mph20 km/h, gusts 28 mph44 km/h
UV peak
4
Wednesday, Oct 28. Mostly sunny. High 57°14°, low 46°8°. Typical 60°16° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 57.
Night: Partly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–57°14°
Low, likely
33°1°–46°8°
Typical high / low
60°16° / 46°8°
Wind
9 mph14 km/h, gusts 15 mph25 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 63°17°, low 52°11°. Typical 60°16° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 63.
Night: Mostly clear, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–64°18°
Low, likely
46°8°–52°11°
Typical high / low
60°16° / 46°8°
Wind
14 mph22 km/h, gusts 33 mph53 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 67°19°, low 50°10°. Typical 59°15° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 67.
Night: Mostly clear, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
48°9°–53°12°
Typical high / low
59°15° / 46°8°
Wind
11 mph18 km/h, gusts 23 mph37 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 64°18°, low 46°8°. Typical 59°15° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–67°19°
Low, likely
43°6°–49°9°
Typical high / low
59°15° / 45°7°
Wind
11 mph18 km/h, gusts 21 mph34 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 64°18°, low 51°11°. Typical 58°14° / 45°7°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  30% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  40% chance · 0.09 in2.2 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
62°17°–70°21°
Low, likely
45°7°–54°12°
Typical high / low
58°14° / 45°7°
Wind
12 mph20 km/h, gusts 26 mph42 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 63°17°, low 58°14°. Typical 58°14° / 45°7°. Rain 0.35 in8.9 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  40% chance · 0.23 in5.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 63°17°
  30% chance · 0.09 in2.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 62°16°
  30% chance · 0.02 in0.6 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
60°16°–69°21°
Low, likely
55°13°–65°18°
Typical high / low
58°14° / 45°7°
Wind
18 mph29 km/h, gusts 33 mph54 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 38°.
Tomorrow
Dry, high 63°, low 47°.
Monday
Dry, high 66°, low 48°, 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

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Long Island Sound near New London Harbor (IN MLLW)

19 mi

Below flood stage

Level: 3.0 ft

Forecast peak 4.3 ft Tue 10 AM

Reading from Sat 7 PM · NWS gauge page

Connecticut River at Middle Haddam

19 mi

Below flood stage

Level: 1.1 ft

Forecast peak 3.3 ft Sun 1 PM

Reading from Sat 6:45 PM · NWS gauge page

Lake Hammonasset above Lake Hammonasset

10 mi

Level: 0.2 ft

Reading from Sat 7:07 PM · NWS gauge page

Orient Harbor at Orient (IN MLLW)

12 mi

Below flood stage

Level: 2.3 ft

Reading from Sat 6:54 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 70% less heating than a typical week.

This week 25Typical 81

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 13
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 4 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 41°F).

Open the windows?

Sun, 1:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

Orient Point State Park · official normals 1991–2020 · records 2017–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 1° colder than normal (daily mean temperature).

−7°−4°MonOct 19
±0°TueOct 20
+3°+1°WedOct 21
±0°ThuOct 22
+2°+1°FriOct 23
−4°−2°SatOct 24
—SunOct 25

Westbrook Center weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 44 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 32 min less
Golden hour: 5:17–6:12 PM; Morning 6:54–7:50 AM
Blue hour: 6:12–6:23 PM; Morning 6:43–6:54 AM; first light 6:43 AM

Stars tonight? Fair

Clear 8:46 PM–6:44 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:21 AM · rises 4:52 PM
Full moon: Oct 26
New moon: Nov 9

Looking south from Westbrook Center. The highest point on the skyline is about 600 ft, 14 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Frost Advisory

Westbrook Center, CT weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Long Island Sound near New London Harbor (IN MLLW)

Connecticut River at Middle Haddam

Lake Hammonasset above Lake Hammonasset

Orient Harbor at Orient (IN MLLW)

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon