Frost Advisory
Starts in 8 h 39 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 3:00 PM EDT at KWST

Pawcatuck, CT weather

Sunny and 59°15°, jacket by 6 PM.

Forecasts agree

Now 59°15°

Sunny

Wind: 7 mph11 km/h; From the southwest. Up to 7 mph11 km/h through 3 AM
Dew point: 36°2°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 16Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.49 inHg1033 hPa; Falling · −0.05 inHg−1.5 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below 50°10° tonight after 7 PM
Low 33°1° tonight at 5 AM
Above 50°10° tomorrow by 10 AM

This afternoonNear 60°16° · Clear
TonightDown to 33°1° by 5 AM · Clear
Tomorrow morningUp to 56°13° by 11 AM · Clear
Tomorrow afternoonNear 60°16° · Clear
Tomorrow nightDown to 38°3° by 4 AM · Clear
Monday morningUp to 57°14° by 11 AM · Clear
Monday afternoonNear 63°17° · 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 3p	Sunny	61°16° (likely 60°16° to 62°17°)	61°16°	0%	5 mph8 km/h from W, gusts 9 mph14 km/h	39%	10%	2
Sat 4p	Sunny	60°16° (likely 58°14° to 61°16°)	60°16°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	44%	6%	1
Sat 5p	Sunny	58°14° (likely 55°13° to 59°15°)	58°14°	0%	3 mph5 km/h from W, gusts 9 mph14 km/h	49%	1%	0
Sat 6p	Clear	55°13° (likely 51°11° to 55°13°)	55°13°	0%	2 mph3 km/h from W, gusts 8 mph12 km/h	53%	4%	0
Sat 7p	Clear	48°9° (likely 47°8° to 48°9°)	48°9°	0%	1 mph2 km/h from W, gusts 8 mph12 km/h	65%	0%	0
Sat 8p	Clear	44°7° (likely 44°7° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 8 mph13 km/h	73%	0%	0
Sat 9p	Clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 9 mph14 km/h	76%	0%	0
Sat 10p	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 6 mph9 km/h	79%	0%	0
Sat 11p	Clear	38°3° (likely 38°3° to 43°6°)	38°3°	0%	0 mph0 km/h, gusts 5 mph8 km/h	85%	0%	0
Sun 12a	Clear	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 6 mph10 km/h	82%	0%	0
Sun 1a	Clear	37°3° (likely 37°3° to 41°5°)	37°3°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	85%	0%	0
Sun 2a	Clear	36°2° (likely 36°2° to 40°4°)	36°2°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	89%	0%	0
Sun 3a	Clear	35°2° (likely 35°2° to 40°4°)	35°2°	0%	1 mph2 km/h from N, gusts 6 mph10 km/h	89%	0%	0
Sun 4a	Clear	34°1° (likely 34°1° to 39°4°)	34°1°	0%	2 mph3 km/h from N, gusts 7 mph11 km/h	92%	0%	0
Sun 5a	Clear	33°1° (likely 33°1° to 38°3°)	33°1°	0%	2 mph3 km/h from N, gusts 7 mph12 km/h	96%	0%	0
Sun 6a	Clear	34°1° (likely 34°1° to 37°3°)	34°1°	0%	2 mph3 km/h from N, gusts 7 mph11 km/h	89%	0%	0
Sun 7a	Sunny	34°1° (likely 33°1° to 36°2°)	34°1°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	92%	2%	0
Sun 8a	Sunny	36°2° (likely 34°1° to 37°3°)	36°2°	0%	2 mph3 km/h from N, gusts 6 mph9 km/h	85%	1%	0
Sun 9a	Sunny	44°7° (likely 42°6° to 44°7°)	44°7°	0%	2 mph3 km/h from N, gusts 6 mph9 km/h	68%	0%	1
Sun 10a	Sunny	51°11° (likely 50°10° to 53°12°)	51°11°	0%	1 mph2 km/h from NW, gusts 5 mph8 km/h	54%	0%	2
Sun 11a	Sunny	56°13° (likely 56°13° to 59°15°)	56°13°	0%	1 mph2 km/h from NW, gusts 4 mph7 km/h	49%	0%	3
Sun 12p	Sunny	60°16° (likely 60°16° to 62°17°)	60°16°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	44%	0%	4
Sun 1p	Sunny	62°17° (likely 62°17° to 64°18°)	62°17°	0%	3 mph5 km/h from SW, gusts 6 mph10 km/h	43%	0%	4
Sun 2p	Sunny	63°17° (likely 62°17° to 64°18°)	63°17°	0%	5 mph8 km/h from SW, gusts 7 mph11 km/h	43%	0%	4
Sun 3p	Sunny	63°17° (likely 62°17° to 63°17°)	63°17°	0%	5 mph8 km/h from SW, gusts 9 mph14 km/h	43%	0%	3
Sun 4p	Sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	5 mph8 km/h from SW, gusts 9 mph15 km/h	48%	0%	2
Sun 5p	Sunny	59°15° (likely 57°14° to 59°15°)	59°15°	0%	3 mph5 km/h from SW, gusts 10 mph16 km/h	53%	0%	1
Sun 6p	Clear	56°13° (likely 52°11° to 56°13°)	56°13°	0%	2 mph3 km/h from SW, gusts 9 mph15 km/h	62%	0%	0
Sun 7p	Clear	50°10° (likely 49°9° to 51°11°)	50°10°	0%	1 mph2 km/h from SW, gusts 9 mph14 km/h	77%	0%	0
Sun 8p	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	1 mph2 km/h from SW, gusts 10 mph15 km/h	89%	0%	0
Sun 9p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	1 mph2 km/h from SW, gusts 11 mph18 km/h	100%	0%	0
Sun 10p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from SW, gusts 11 mph18 km/h	100%	0%	0
Sun 11p	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	2 mph3 km/h from SW, gusts 11 mph17 km/h	100%	0%	0
Mon 12a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	2 mph3 km/h from W, gusts 11 mph18 km/h	100%	0%	0
Mon 1a	Clear	41°5° (likely 41°5° to 45°7°)	41°5°	0%	2 mph3 km/h from W, gusts 13 mph21 km/h	100%	3%	0
Mon 2a	Clear	41°5° (likely 41°5° to 45°7°)	41°5°	0%	2 mph3 km/h from W, gusts 14 mph22 km/h	96%	6%	0
Mon 3a	Clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	2 mph3 km/h from W, gusts 13 mph21 km/h	100%	5%	0
Mon 4a	Clear	38°3° (likely 38°3° to 43°6°)	36°2°	0%	3 mph5 km/h from W, gusts 13 mph21 km/h	100%	1%	0
Mon 5a	Clear	38°3° (likely 38°3° to 43°6°)	36°2°	0%	3 mph5 km/h from W, gusts 13 mph20 km/h	100%	0%	0
Mon 6a	Clear	36°2° (likely 36°2° to 42°6°)	33°1°	0%	3 mph5 km/h from W, gusts 11 mph17 km/h	100%	3%	0
Mon 7a	Sunny	36°2° (likely 36°2° to 42°6°)	33°1°	0%	3 mph5 km/h from W, gusts 10 mph17 km/h	100%	1%	0
Mon 8a	Sunny	38°3° (likely 38°3° to 44°7°)	36°2°	0%	3 mph5 km/h from W, gusts 9 mph15 km/h	96%	12%	0
Mon 9a	Mostly sunny	44°7° (likely 43°6° to 53°12°)	42°6°	0%	3 mph5 km/h from W, gusts 7 mph12 km/h	82%	12%	1
Mon 10a	Mostly sunny	51°11° (likely 50°10° to 57°14°)	51°11°	0%	5 mph8 km/h from W, gusts 12 mph19 km/h	71%	14%	2
Mon 11a	Mostly sunny	57°14° (likely 55°13° to 61°16°)	57°14°	0%	6 mph10 km/h from W, gusts 12 mph19 km/h	64%	17%	3
Mon 12p	Mostly sunny	61°16° (likely 59°15° to 64°18°)	61°16°	0%	7 mph11 km/h from W, gusts 14 mph22 km/h	58%	12%	4
Mon 1p	Sunny	63°17° (likely 63°17° to 67°19°)	63°17°	0%	8 mph13 km/h from W, gusts 14 mph22 km/h	58%	6%	4
Mon 2p	Sunny	64°18° (likely 64°18° to 67°19°)	64°18°	0%	9 mph14 km/h from W, gusts 14 mph23 km/h	58%	6%	4

Days ahead

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

Today, Oct 24. Mostly sunny. High 61°16°, low 32°0°. Typical 61°16° / 41°5°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
2. Evening
  6 PM–midnight
  Clear, 44°7°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 33°1°
  Dry
Official NWS forecast
Today: Sunny. High near 61, with temperatures falling to around 58 in the afternoon. West wind around 5 mph.
Tonight: Areas of frost after 11pm. Clear, with a low around 32. Northwest wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–62°17°
Low, likely
30°−1°–32°0°
Typical high / low
61°16° / 41°5°
Wind
6 mph10 km/h, gusts 13 mph21 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 63°17°, low 35°2°. Typical 61°16° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Day: Areas of frost before 9am. Sunny. High near 63, with temperatures falling to around 59 in the afternoon. West wind 1 to 5 mph.
Night: Patchy frost after 4am. Mostly clear. Low around 35, with temperatures rising to around 38 overnight. West wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
63°17°–64°18°
Low, likely
33°1°–36°2°
Typical high / low
61°16° / 40°4°
Wind
7 mph12 km/h, gusts 15 mph24 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 66°19°, low 45°7°. Typical 60°16° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Day: Patchy frost before 9am. Sunny. High near 66, with temperatures falling to around 64 in the afternoon. West wind 3 to 9 mph.
Night: Clear. Low around 45, with temperatures rising to around 47 overnight.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–67°19°
Low, likely
38°3°–45°7°
Typical high / low
60°16° / 40°4°
Wind
8 mph13 km/h, gusts 21 mph34 km/h
UV peak
4
Tuesday, Oct 27. Sunny. High 58°14°, low 33°1°. Typical 60°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 43°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 58.
Night: Clear, with a low around 33.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–58°14°
Low, likely
33°1°–43°6°
Typical high / low
60°16° / 40°4°
Wind
9 mph14 km/h, gusts 26 mph41 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 57°14°, low 40°4°. Typical 60°16° / 39°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 45°7°
  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 40.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
53°12°–57°14°
Low, likely
33°1°–40°4°
Typical high / low
60°16° / 39°4°
Wind
8 mph12 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 63°17°, low 49°9°. Typical 59°15° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  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 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–63°17°
Low, likely
41°5°–49°9°
Typical high / low
59°15° / 39°4°
Wind
11 mph17 km/h, gusts 28 mph46 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 68°20°, low 47°8°. Typical 59°15° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 68.
Night: Mostly clear, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–71°22°
Low, likely
47°8°–52°11°
Typical high / low
59°15° / 39°4°
Wind
8 mph13 km/h, gusts 22 mph35 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 65°18°, low 47°8°. Typical 58°14° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
47°8°–48°9°
Typical high / low
58°14° / 38°3°
Wind
9 mph14 km/h, gusts 27 mph44 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 65°18°, low 50°10°. Typical 58°14° / 38°3°. Rain, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  30% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 59°15°
  30% chance · 0.05 in1.1 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°–68°20°
Low, likely
44°7°–55°13°
Typical high / low
58°14° / 38°3°
Wind
9 mph14 km/h, gusts 25 mph40 km/h
UV peak
4
Monday, Nov 2. Drizzle. High 65°18°, low 58°14°. Typical 58°14° / 38°3°. Rain 0.25 in6.4 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 60°16°
  30% chance · 0.07 in1.7 mm
2. Afternoon
  noon–6 PM
  Drizzle, 64°18°
  30% chance · 0.08 in2 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  20% chance · 0.08 in1.9 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–68°20°
Low, likely
55°13°–64°18°
Typical high / low
58°14° / 38°3°
Wind
16 mph26 km/h, gusts 30 mph49 km/h

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 32°.
Tomorrow
Dry, high 63°, low 35°.
Monday
Dry, high 66°, low 45°, warming up.
Rest of week
Mostly dry, highs 57–68°.

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

Pawcatuck at Westerly

1.5 mi

Below flood stage

Level: 4.3 ft
Flow: 413 cfs

Forecast peak 4.3 ft Sat 8 PM

Reading from Sat 1 PM · NWS gauge page

Atlantic Coast at Watch Hill Cove (IN MLLW)

4.4 mi

Below flood stage

Level: 1.4 ft

Forecast peak 3.3 ft Sun 9 AM

Reading from Sat 1 PM · NWS gauge page

Pawcatuck above Wood River Junction

10 mi

Below flood stage

Level: 2.6 ft
Flow: 159 cfs

Forecast peak 2.6 ft Sat 8 PM

Reading from Sat 1:45 PM · NWS gauge page

Wood River at Hope Valley

11 mi

Below flood stage

Level: 2.5 ft
Flow: 128 cfs

Forecast peak 2.4 ft Sat 8 PM

Reading from Sat 1:15 PM · NWS gauge page

For your home

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

Heating this week

About 66% less heating than a typical week.

This week 36Typical 106

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 28
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 18 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Sun, 12:00 PM–4:00 PM

Good stretch to open the windows.

Is this typical?

NORWICH PUBLIC UTILITY PLANT · official normals 1991–2020 · records 1956–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 4°2° colder than normal (daily mean temperature).

−12°−7°SunOct 18
−7°−4°MonOct 19
−2°−1°TueOct 20
+2°+1°WedOct 21
—ThuOct 22
+4°+2°FriOct 23
−5°−3°SatOct 24

Pawcatuck weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 43 min; Losing 2 min 39 s a day; shortest Dec 21, 1 h 32 min less
Golden hour: 5:14–6:10 PM; Morning 6:52–7:48 AM
Blue hour: 6:10–6:21 PM; Morning 6:41–6:52 AM; first light 6:41 AM

Stars tonight? Fair

Clear 6:21 PM–6:42 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:19 AM · rises 4:49 PM
Full moon: Oct 26
New moon: Nov 9

Looking south from Pawcatuck. Open water to the horizon.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

Pawcatuck, CT weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Pawcatuck at Westerly

Atlantic Coast at Watch Hill Cove (IN MLLW)

Pawcatuck above Wood River Junction

Wood River at Hope Valley

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