Frost Advisory
Starts in 15 h 52 min
When
From 11 PM this evening to 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 33 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 6:25 AM EDT at KBDR

Bridgeport, CT weather

Clear and 45°7°.

Forecasts agree

Now 45°7°

Clear

Wind: 3 mph5 km/h; From the north. 35–8 mph13 km/h through 7 PM
Dew point: 36°2°; Comfortable
UV index: 0Low; Moderate 12–3 PM · peak 3
Air quality: 20Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.27 inHg1025 hPa; Rising · +0.09 inHg+3.0 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (47°8° then, 45°7° now)

Good hours for

Above 50°10° today by 10 AM
High 59°15° today at 4 PM
Below 50°10° tonight after 8 PM
Low 37°3° tonight at 3 AM

This morningUp to 54°12° by 11 AM · Clear
This afternoonUp to 59°15° by 4 PM · Clear
TonightDown to 37°3° by 3 AM · Partly cloudy
Tomorrow morningUp to 55°13° by 11 AM · Partly cloudy
Tomorrow afternoonNear 58°14° · Partly cloudy
Tomorrow nightDown to 37°3° by 3 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
Fri 7a	Sunny	42°6° (likely 42°6° to 45°7°)	37°3°	0%	8 mph13 km/h from N, gusts 15 mph24 km/h	76%	0%	0
Fri 8a	Sunny	41°5° (likely 41°5° to 45°7°)	36°2°	0%	8 mph13 km/h from N, gusts 15 mph24 km/h	76%	0%	0
Fri 9a	Sunny	46°8° (likely 46°8° to 49°9°)	42°6°	0%	8 mph13 km/h from N, gusts 19 mph31 km/h	60%	0%	0
Fri 10a	Sunny	51°11° (likely 50°10° to 52°11°)	51°11°	0%	8 mph13 km/h from NE, gusts 19 mph31 km/h	48%	0%	1
Fri 11a	Sunny	54°12° (likely 53°12° to 54°12°)	54°12°	0%	8 mph13 km/h from NE, gusts 18 mph30 km/h	41%	0%	2
Fri 12p	Sunny	55°13° (likely 55°13° to 56°13°)	55°13°	0%	8 mph13 km/h from N, gusts 17 mph27 km/h	38%	0%	3
Fri 1p	Sunny	57°14° (likely 57°14° to 58°14°)	57°14°	0%	8 mph13 km/h from N, gusts 15 mph25 km/h	35%	0%	3
Fri 2p	Sunny	58°14° (likely 58°14° to 60°16°)	58°14°	0%	7 mph11 km/h from N, gusts 13 mph21 km/h	34%	0%	3
Fri 3p	Sunny	58°14° (likely 58°14° to 60°16°)	58°14°	0%	7 mph11 km/h from NE, gusts 12 mph20 km/h	34%	0%	2
Fri 4p	Sunny	59°15° (likely 59°15° to 60°16°)	59°15°	0%	6 mph10 km/h from N, gusts 11 mph18 km/h	33%	0%	1
Fri 5p	Sunny	58°14° (likely 57°14° to 60°16°)	58°14°	0%	5 mph8 km/h from NE, gusts 10 mph16 km/h	34%	0%	0
Fri 6p	Clear	55°13° (likely 53°12° to 56°13°)	55°13°	0%	3 mph5 km/h from NE, gusts 8 mph13 km/h	40%	2%	0
Fri 7p	Clear	52°11° (likely 50°10° to 53°12°)	52°11°	0%	3 mph5 km/h from N, gusts 7 mph11 km/h	44%	5%	0
Fri 8p	Clear	45°7° (likely 45°7° to 50°10°)	44°7°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	60%	8%	0
Fri 9p	Clear	43°6° (likely 43°6° to 48°9°)	41°5°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	65%	13%	0
Fri 10p	Partly cloudy	42°6° (likely 42°6° to 46°8°)	40°4°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	67%	52%	0
Fri 11p	Partly cloudy	40°4° (likely 40°4° to 45°7°)	38°3°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	73%	45%	0
Sat 12a	Partly cloudy	39°4° (likely 39°4° to 44°7°)	37°3°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	76%	41%	0
Sat 1a	Mostly clear	38°3° (likely 38°3° to 43°6°)	36°2°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	76%	41%	0
Sat 2a	Clear	38°3° (likely 38°3° to 42°6°)	36°2°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	76%	43%	0
Sat 3a	Clear	37°3° (likely 37°3° to 41°5°)	34°1°	0%	3 mph5 km/h from N, gusts 9 mph14 km/h	79%	44%	0
Sat 4a	Mostly clear	37°3° (likely 37°3° to 40°4°)	34°1°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	75%	45%	0
Sat 5a	Partly cloudy	37°3° (likely 37°3° to 40°4°)	34°1°	0%	3 mph5 km/h from N, gusts 8 mph12 km/h	75%	52%	0
Sat 6a	Partly cloudy	37°3° (likely 37°3° to 39°4°)	34°1°	0%	3 mph5 km/h from N, gusts 8 mph12 km/h	75%	57%	0
Sat 7a	Partly sunny	36°2° (likely 36°2° to 39°4°)	33°1°	0%	3 mph5 km/h from N, gusts 7 mph12 km/h	79%	59%	0
Sat 8a	Mostly sunny	37°3° (likely 37°3° to 40°4°)	33°1°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	75%	62%	0
Sat 9a	Cloudy	42°6° (likely 42°6° to 44°7°)	40°4°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	65%	65%	1
Sat 10a	Cloudy	51°11° (likely 49°9° to 51°11°)	51°11°	0%	3 mph5 km/h from N, gusts 5 mph8 km/h	46%	55%	1
Sat 11a	Partly sunny	55°13° (likely 53°12° to 56°13°)	55°13°	0%	3 mph5 km/h from NW, gusts 5 mph8 km/h	41%	49%	2
Sat 12p	Partly sunny	57°14° (likely 56°13° to 59°15°)	57°14°	0%	3 mph5 km/h from NW, gusts 7 mph12 km/h	38%	51%	3
Sat 1p	Partly sunny	59°15° (likely 58°14° to 61°16°)	59°15°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	36%	51%	3
Sat 2p	Partly sunny	59°15° (likely 59°15° to 62°17°)	59°15°	0%	5 mph8 km/h from W, gusts 8 mph12 km/h	36%	52%	3
Sat 3p	Partly sunny	59°15° (likely 59°15° to 62°17°)	59°15°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	36%	50%	2
Sat 4p	Sunny	59°15° (likely 59°15° to 62°17°)	59°15°	0%	5 mph8 km/h from W, gusts 8 mph12 km/h	36%	45%	2
Sat 5p	Sunny	59°15° (likely 58°14° to 61°16°)	59°15°	0%	5 mph8 km/h from W, gusts 7 mph12 km/h	36%	24%	1
Sat 6p	Clear	56°13° (likely 53°12° to 57°14°)	56°13°	0%	3 mph5 km/h from W, gusts 7 mph12 km/h	42%	3%	0
Sat 7p	Clear	53°12° (likely 50°10° to 54°12°)	53°12°	0%	2 mph3 km/h from NW, gusts 7 mph11 km/h	46%	0%	0
Sat 8p	Clear	48°9° (likely 47°8° to 52°11°)	48°9°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	58%	0%	0
Sat 9p	Clear	44°7° (likely 44°7° to 51°11°)	44°7°	0%	1 mph2 km/h from NW, gusts 5 mph8 km/h	68%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 50°10°)	42°6°	0%	1 mph2 km/h from NW, gusts 7 mph11 km/h	76%	0%	0
Sat 11p	Clear	41°5° (likely 41°5° to 48°9°)	41°5°	0%	1 mph2 km/h from NW, gusts 10 mph15 km/h	79%	0%	0
Sun 12a	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	1 mph2 km/h from NW, gusts 8 mph13 km/h	82%	0%	0
Sun 1a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	2 mph3 km/h from NW, gusts 7 mph12 km/h	89%	0%	0
Sun 2a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	89%	0%	0
Sun 3a	Clear	37°3° (likely 37°3° to 48°9°)	37°3°	0%	2 mph3 km/h from NW, gusts 5 mph7 km/h	89%	0%	0
Sun 4a	Clear	37°3° (likely 37°3° to 47°8°)	37°3°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	85%	0%	0
Sun 5a	Clear	37°3° (likely 37°3° to 47°8°)	37°3°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	85%	0%	0
Sun 6a	Clear	36°2° (likely 36°2° to 46°8°)	36°2°	0%	2 mph3 km/h from NW, gusts 5 mph9 km/h	89%	0%	0

Days ahead

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

Today, Oct 23. Sunny. High 59°15°, low 35°2°. Typical 62°17° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Today: Sunny, with a high near 59. Northeast wind 5 to 8 mph.
Tonight: Areas of frost after 3am. Mostly clear. Low around 35, with temperatures rising to around 37 overnight. North wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–61°16°
Low, likely
35°2°–44°7°
Typical high / low
62°17° / 46°8°
Wind
11 mph17 km/h, gusts 34 mph54 km/h
UV peak
4
Tomorrow, Oct 24. Cloudy. High 59°15°, low 36°2°. Typical 62°17° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Day: Areas of frost before 9am. Mostly sunny, with a high near 59. Northwest wind around 5 mph.
Night: Patchy frost after 5am. Mostly clear, with a low around 36. Northwest wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
36°2°–39°4°
Typical high / low
62°17° / 45°7°
Wind
7 mph10 km/h, gusts 15 mph24 km/h
UV peak
3
Sunday, Oct 25. Sunny. High 62°17°, low 39°4°. Typical 61°16° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy frost before 8am. Sunny. High near 62, with temperatures falling to around 60 in the afternoon. West wind 2 to 6 mph.
Night: Clear. Low around 39, with temperatures rising to around 41 overnight.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
37°3°–43°6°
Typical high / low
61°16° / 45°7°
Wind
7 mph12 km/h, gusts 13 mph21 km/h
UV peak
4
Monday, Oct 26. Sunny. High 67°19°, low 45°7°. Typical 61°16° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  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 67.
Night: Clear, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
38°3°–45°7°
Typical high / low
61°16° / 45°7°
Wind
7 mph11 km/h, gusts 13 mph22 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 60°16°, low 37°3°. Typical 60°16° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 43°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 60.
Night: Mostly clear, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
57°14°–61°16°
Low, likely
37°3°–51°11°
Typical high / low
60°16° / 44°7°
Wind
10 mph17 km/h, gusts 26 mph42 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 56°13°, low 41°5°. Typical 60°16° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 56.
Night: Partly cloudy, with a low around 41.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
54°12°–56°13°
Low, likely
37°3°–48°9°
Typical high / low
60°16° / 44°7°
Wind
8 mph12 km/h, gusts 15 mph24 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 61°16°, low 45°7°. Typical 60°16° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 53°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 61.
Night: Partly cloudy, with a low around 45.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–66°19°
Low, likely
45°7°–50°10°
Typical high / low
60°16° / 44°7°
Wind
11 mph18 km/h, gusts 27 mph43 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 66°19°, low 50°10°. Typical 59°15° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 49°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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
47°8°–52°11°
Typical high / low
59°15° / 43°6°
Wind
10 mph15 km/h, gusts 22 mph36 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 59°15°, low 46°8°. Typical 59°15° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  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
52°11°–67°19°
Low, likely
39°4°–55°13°
Typical high / low
59°15° / 43°6°
Wind
11 mph17 km/h, gusts 27 mph43 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 61°16°, low 49°9°. Typical 59°15° / 43°6°. Rain 0.12 in3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 57°14°
  20% chance
3. Evening
  6 PM–midnight
  Drizzle, 52°11°
  30% 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
56°13°–64°18°
Low, likely
36°2°–62°17°
Typical high / low
59°15° / 43°6°
Wind
16 mph26 km/h, gusts 35 mph56 km/h

10 days15 days30 days

The outlook

Today
Dry, high 59°, low 35°.
Tomorrow
Dry, high 59°, low 36°.
Sunday
Dry, high 62°, low 39°, warming up.
Rest of week
Mostly dry, highs 56–67°.

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

For your home

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

Heating this week

About 58% less heating than a typical week.

This week 36Typical 86

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 26
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 7 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Igor I Sikorsky Memorial Airport · official normals 1991–2020 · records 1948–2026

Oct 23, today vs a typical year

Today’s expected high is 3°2° colder than typical.

Last 7 days vs normal

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

−6°−4°SatOct 17
−8°−4°SunOct 18
−3°−2°MonOct 19
±0°TueOct 20
+2°+1°WedOct 21
+2°+1°ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 46 min; Losing 2 min 39 s a day; shortest Dec 21, 1 h 34 min less
Golden hour: 5:21–6:17 PM; Morning 6:56–7:51 AM
Blue hour: 6:17–6:28 PM; Morning 6:45–6:56 AM; first light 6:45 AM

Stars tonight? Fair

Mostly clear 6:28–10 PM, but the moon is 95% lit and up.

Moon

Waxing gibbous

91% lit · growing

Today: sets 4:15 AM · rises 4:32 PM
Full moon: Oct 26
New moon: Nov 9

Looking southeast from Bridgeport. The highest point on the skyline is about 1,600 ft, 36 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