Frost Advisory
Starts in 9 h 46 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 as low as 35 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 1:45 PM EDT at KGON

Saybrook Manor, CT weather

Sunny and 57°14°, jacket by 8 PM.

Mostly agree

Now 57°14°

Sunny

Wind: 8 mph13 km/h; From the south-southwest. Up to 8 mph13 km/h through 2 AM
Dew point: 37°3°; Comfortable
UV index: 4Moderate; Moderate until 4 PM
Air today: 39Good; EPA forecast · PM2.5 (fine particles)
Pressure: 30.51 inHg1033 hPa; Falling slowly · −0.04 inHg−1.4 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 59°15° today at 4 PM
Low 42°6° tomorrow at 6 AM
Above 50°10° tomorrow by 10 AM

This afternoonNear 58°14° · Partly cloudy
TonightDown to 43°6° by 4 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 61°16° by 5 PM · Clear
Tomorrow nightDown to 48°9° by 4 AM · Clear
Monday morningUp to 57°14° by 11 AM · 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 2p	Partly sunny	58°14° (likely 57°14° to 61°16°)	58°14°	0%	6 mph10 km/h from W, gusts 9 mph15 km/h	49%	23%	4
Sat 3p	Partly sunny	58°14° (likely 58°14° to 62°17°)	58°14°	0%	6 mph10 km/h from W, gusts 9 mph14 km/h	53%	54%	3
Sat 4p	Partly sunny	59°15° (likely 57°14° to 61°16°)	59°15°	0%	6 mph10 km/h from W, gusts 8 mph13 km/h	51%	46%	2
Sat 5p	Sunny	58°14° (likely 55°13° to 59°15°)	58°14°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	55%	27%	1
Sat 6p	Clear	57°14° (likely 52°11° to 57°14°)	57°14°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	57%	26%	0
Sat 7p	Clear	56°13° (likely 48°9° to 56°13°)	56°13°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	59%	8%	0
Sat 8p	Clear	53°12° (likely 46°8° to 53°12°)	53°12°	0%	2 mph3 km/h from W, gusts 6 mph9 km/h	71%	2%	0
Sat 9p	Clear	51°11° (likely 44°7° to 51°11°)	51°11°	0%	1 mph2 km/h from W, gusts 6 mph9 km/h	74%	0%	0
Sat 10p	Clear	50°10° (likely 43°6° to 50°10°)	50°10°	0%	1 mph2 km/h from NW, gusts 6 mph10 km/h	74%	0%	0
Sat 11p	Clear	48°9° (likely 42°6° to 48°9°)	48°9°	0%	2 mph3 km/h from NW, gusts 7 mph11 km/h	80%	0%	0
Sun 12a	Clear	47°8° (likely 41°5° to 47°8°)	47°8°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	79%	0%	0
Sun 1a	Clear	46°8° (likely 39°4° to 46°8°)	46°8°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	83%	0%	0
Sun 2a	Clear	45°7° (likely 38°3° to 45°7°)	45°7°	0%	2 mph3 km/h from N, gusts 7 mph11 km/h	82%	0%	0
Sun 3a	Clear	44°7° (likely 38°3° to 44°7°)	44°7°	0%	2 mph3 km/h from N, gusts 7 mph12 km/h	86%	0%	0
Sun 4a	Clear	43°6° (likely 37°3° to 43°6°)	43°6°	0%	2 mph3 km/h from N, gusts 8 mph12 km/h	86%	0%	0
Sun 5a	Clear	43°6° (likely 34°1° to 43°6°)	43°6°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	86%	0%	0
Sun 6a	Clear	42°6° (likely 33°1° to 42°6°)	42°6°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	89%	6%	0
Sun 7a	Sunny	43°6° (likely 32°0° to 43°6°)	43°6°	0%	3 mph5 km/h from N, gusts 7 mph12 km/h	86%	4%	0
Sun 8a	Sunny	44°7° (likely 33°1° to 44°7°)	44°7°	0%	3 mph5 km/h from N, gusts 7 mph12 km/h	82%	0%	0
Sun 9a	Sunny	46°8° (likely 41°5° to 46°8°)	46°8°	0%	2 mph3 km/h from NW, gusts 8 mph12 km/h	83%	0%	1
Sun 10a	Sunny	52°11° (likely 50°10° to 53°12°)	52°11°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	69%	0%	2
Sun 11a	Sunny	55°13° (likely 55°13° to 58°14°)	55°13°	0%	1 mph2 km/h from NW, gusts 4 mph7 km/h	61%	0%	3
Sun 12p	Sunny	57°14° (likely 57°14° to 61°16°)	57°14°	0%	2 mph3 km/h from W, gusts 5 mph9 km/h	57%	0%	4
Sun 1p	Sunny	58°14° (likely 58°14° to 63°17°)	58°14°	0%	3 mph5 km/h from SW, gusts 7 mph11 km/h	55%	0%	4
Sun 2p	Sunny	60°16° (likely 60°16° to 64°18°)	60°16°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	53%	0%	4
Sun 3p	Sunny	60°16° (likely 60°16° to 64°18°)	60°16°	0%	3 mph5 km/h from SW, gusts 10 mph16 km/h	55%	0%	3
Sun 4p	Sunny	60°16° (likely 60°16° to 63°17°)	60°16°	0%	3 mph5 km/h from SW, gusts 10 mph15 km/h	55%	0%	2
Sun 5p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	53%	0%	1
Sun 6p	Clear	59°15° (likely 54°12° to 59°15°)	59°15°	0%	3 mph5 km/h from SW, gusts 8 mph12 km/h	57%	0%	0
Sun 7p	Clear	57°14° (likely 51°11° to 57°14°)	57°14°	0%	3 mph5 km/h from SW, gusts 7 mph11 km/h	62%	0%	0
Sun 8p	Clear	56°13° (likely 48°9° to 56°13°)	56°13°	0%	3 mph5 km/h from SW, gusts 8 mph13 km/h	69%	0%	0
Sun 9p	Clear	53°12° (likely 47°8° to 53°12°)	53°12°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	77%	0%	0
Sun 10p	Clear	52°11° (likely 47°8° to 52°11°)	52°11°	0%	3 mph5 km/h from SW, gusts 11 mph17 km/h	71%	0%	0
Sun 11p	Clear	52°11° (likely 47°8° to 52°11°)	52°11°	0%	3 mph5 km/h from W, gusts 11 mph17 km/h	80%	0%	0
Mon 12a	Clear	51°11° (likely 46°8° to 51°11°)	51°11°	0%	3 mph5 km/h from W, gusts 12 mph19 km/h	74%	0%	0
Mon 1a	Clear	51°11° (likely 46°8° to 51°11°)	51°11°	0%	5 mph8 km/h from W, gusts 13 mph20 km/h	74%	0%	0
Mon 2a	Clear	50°10° (likely 45°7° to 50°10°)	48°9°	0%	5 mph8 km/h from W, gusts 13 mph22 km/h	83%	0%	0
Mon 3a	Clear	49°9° (likely 43°6° to 49°9°)	47°8°	0%	5 mph8 km/h from W, gusts 12 mph19 km/h	77%	0%	0
Mon 4a	Clear	48°9° (likely 42°6° to 48°9°)	46°8°	0%	5 mph8 km/h from W, gusts 12 mph20 km/h	80%	0%	0
Mon 5a	Clear	48°9° (likely 41°5° to 48°9°)	46°8°	0%	5 mph8 km/h from W, gusts 12 mph20 km/h	83%	0%	0
Mon 6a	Clear	47°8° (likely 40°4° to 47°8°)	45°7°	0%	5 mph8 km/h from W, gusts 12 mph19 km/h	83%	4%	0
Mon 7a	Sunny	46°8° (likely 40°4° to 46°8°)	44°7°	0%	5 mph8 km/h from W, gusts 10 mph16 km/h	86%	4%	0
Mon 8a	Sunny	47°8° (likely 41°5° to 47°8°)	45°7°	0%	5 mph8 km/h from W, gusts 6 mph10 km/h	83%	14%	0
Mon 9a	Sunny	50°10° (likely 44°7° to 53°12°)	48°9°	0%	6 mph10 km/h from W, gusts 6 mph10 km/h	74%	22%	1
Mon 10a	Sunny	53°12° (likely 50°10° to 57°14°)	53°12°	0%	6 mph10 km/h from W, gusts 8 mph13 km/h	69%	17%	2
Mon 11a	Sunny	57°14° (likely 56°13° to 60°16°)	57°14°	0%	7 mph11 km/h from W, gusts 11 mph18 km/h	64%	15%	3
Mon 12p	Sunny	59°15° (likely 59°15° to 63°17°)	59°15°	0%	8 mph13 km/h from W, gusts 13 mph20 km/h	57%	5%	4
Mon 1p	Sunny	61°16° (likely 61°16° to 65°18°)	61°16°	0%	8 mph13 km/h from W, gusts 13 mph21 km/h	53%	4%	4

Days ahead

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

Today, Oct 24. Cloudy. High 60°16°, low 40°4°. Typical 62°17° / 47°8°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Partly sunny, 59°15°
  Dry
2. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Official NWS forecast
Today: Mostly sunny. High near 60, with temperatures falling to around 58 in the afternoon. West wind around 6 mph.
Tonight: Clear. Low around 40, with temperatures rising to around 43 overnight. Northwest wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–62°17°
Low, likely
32°0°–40°4°
Typical high / low
62°17° / 47°8°
Wind
7 mph12 km/h, gusts 14 mph23 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 62°17°, low 43°6°. Typical 61°16° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 62. Northwest wind around 3 mph.
Night: Clear. Low around 43, with temperatures rising to around 48 overnight. West wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–64°18°
Low, likely
32°0°–43°6°
Typical high / low
61°16° / 47°8°
Wind
9 mph14 km/h, gusts 16 mph26 km/h
UV peak
4
Monday, Oct 26. Sunny. High 65°18°, low 48°9°. Typical 61°16° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Official NWS forecast
Day: Sunny. High near 65, with temperatures falling to around 63 in the afternoon. West wind 5 to 8 mph.
Night: Clear, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–66°19°
Low, likely
40°4°–48°9°
Typical high / low
61°16° / 47°8°
Wind
10 mph16 km/h, gusts 22 mph35 km/h
UV peak
4
Tuesday, Oct 27. Sunny. High 57°14°, low 37°3°. Typical 60°16° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 45°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 57.
Night: Mostly clear, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–57°14°
Low, likely
37°3°–44°7°
Typical high / low
60°16° / 46°8°
Wind
12 mph19 km/h, gusts 23 mph36 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
  Cloudy, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  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
32°0°–46°8°
Typical high / low
60°16° / 46°8°
Wind
8 mph13 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 63°17°, low 52°11°. Typical 60°16° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 63.
Night: Partly cloudy, with a low around 52.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–64°18°
Low, likely
44°7°–52°11°
Typical high / low
60°16° / 46°8°
Wind
11 mph18 km/h, gusts 33 mph53 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 65°18°, low 47°8°. Typical 59°15° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  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 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–70°21°
Low, likely
47°8°–52°11°
Typical high / low
59°15° / 46°8°
Wind
10 mph16 km/h, gusts 26 mph42 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 65°18°, low 48°9°. Typical 59°15° / 45°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  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
60°16°–68°20°
Low, likely
45°7°–50°10°
Typical high / low
59°15° / 45°7°
Wind
12 mph20 km/h, gusts 25 mph40 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 64°18°, low 51°11°. Typical 58°14° / 45°7°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 59°15°
  20% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°15°
  30% chance · 0.04 in0.9 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
56°13°–70°21°
Low, likely
48°9°–54°12°
Typical high / low
58°14° / 45°7°
Wind
10 mph16 km/h, gusts 23 mph37 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 65°18°, low 59°15°. Typical 58°14° / 45°7°. Rain 0.42 in11 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  40% chance · 0.11 in2.8 mm
2. Afternoon
  noon–6 PM
  Showers, 65°18°
  30% chance · 0.17 in4.4 mm
3. Evening
  6 PM–midnight
  Showers, 63°17°
  20% chance · 0.18 in4.5 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–69°21°
Low, likely
56°13°–65°18°
Typical high / low
58°14° / 45°7°
Wind
18 mph29 km/h, gusts 33 mph54 km/h

10 days15 days30 days

The outlook

Today
Dry, high 60°, low 40°.
Tomorrow
Dry, high 62°, low 43°.
Monday
Dry, high 65°, low 48°, warming up.
Rest of week
Mostly dry, highs 57–65°.

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)

17 mi

Below flood stage

Level: 1.8 ft

Forecast peak 4.3 ft Tue 10 AM

Reading from Sat 1 PM · NWS gauge page

Connecticut River at Middle Haddam

19 mi

Below flood stage

Level: 3.6 ft

Forecast peak 3.3 ft Sun 1 PM

Reading from Sat 12:45 PM · NWS gauge page

Yantic River at Yantic

24 mi

Below flood stage

Level: 2.0 ft
Flow: 88 cfs

Forecast peak 2.0 ft Sat 2 PM

Reading from Sat 12:45 PM · NWS gauge page

Orient Harbor at Orient (IN MLLW)

11 mi

Below flood stage

Level: 2.2 ft

Reading from Sat 12:54 PM · NWS gauge page

For your home

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

Heating this week

About 69% less heating than a typical week.

This week 26Typical 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 1 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 37°F).

Open the windows?

Sun, 2:00 PM–5:00 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 2°1° colder than typical.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

−10°−6°SunOct 18
−7°−4°MonOct 19
±0°TueOct 20
+3°+1°WedOct 21
±0°ThuOct 22
+2°+1°FriOct 23
−4°−2°SatOct 24

Saybrook Manor 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 7 PM–6:44 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

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

Looking south from Saybrook Manor. The highest point on the skyline is about 700 ft, 19 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

Saybrook Manor, 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

Yantic River at Yantic

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