Observed 10:30 AM EDT at KCQX

Chatham, MA weather

Sunny and 54°12°.

Mostly agree

Now 54°12°

Sunny

Wind: 7 mph11 km/h; From the north. Up to 7 mph11 km/h through 10 PM
Dew point: 39°4°; Comfortable
UV index: 1Low; Moderate 12–2 PM · peak 3
Air quality: 26Good; Main pollutant: Ozone
Pressure: 30.53 inHg1034 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

4°2° warmer than this time yesterday (49°9° then, 53°12° now)

Good hours for

High 57°14° today at 1 PM
Low 43°6° tonight at 2 AM
Above 50°10° tomorrow by 10 AM

This morningNear 53°12° · Clear
This afternoonNear 55°13° · Clear
TonightDown to 43°6° by 2 AM · Clear
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonNear 58°14° · Clear
Tomorrow nightDown to 48°9° by 2 AM · Clear
Monday morningNear 52°11° · 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 10a	Sunny	51°11° (likely 51°11° to 53°12°)	51°11°	0%	6 mph10 km/h from N, gusts 14 mph22 km/h	63%	10%	1
Sat 11a	Mostly sunny	54°12° (likely 51°11° to 54°12°)	54°12°	0%	7 mph11 km/h from N, gusts 13 mph21 km/h	57%	14%	2
Sat 12p	Sunny	56°13° (likely 51°11° to 56°13°)	56°13°	0%	7 mph11 km/h from N, gusts 12 mph19 km/h	53%	13%	3
Sat 1p	Mostly sunny	57°14° (likely 51°11° to 57°14°)	57°14°	0%	7 mph11 km/h from N, gusts 10 mph16 km/h	49%	15%	3
Sat 2p	Sunny	57°14° (likely 52°11° to 57°14°)	57°14°	0%	7 mph11 km/h from N, gusts 9 mph14 km/h	49%	8%	2
Sat 3p	Sunny	56°13° (likely 51°11° to 56°13°)	56°13°	0%	6 mph10 km/h from N, gusts 8 mph13 km/h	51%	4%	1
Sat 4p	Sunny	55°13° (likely 51°11° to 55°13°)	55°13°	0%	6 mph10 km/h from NW, gusts 7 mph11 km/h	53%	2%	1
Sat 5p	Sunny	54°12° (likely 51°11° to 54°12°)	54°12°	0%	5 mph8 km/h from NW, gusts 6 mph9 km/h	54%	4%	0
Sat 6p	Clear	51°11° (likely 49°9° to 51°11°)	51°11°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	63%	2%	0
Sat 7p	Clear	49°9° (likely 47°8° to 51°11°)	49°9°	0%	2 mph3 km/h from SW, gusts 5 mph8 km/h	68%	2%	0
Sat 8p	Clear	47°8° (likely 46°8° to 51°11°)	47°8°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	74%	2%	0
Sat 9p	Clear	46°8° (likely 45°7° to 50°10°)	46°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	76%	0%	0
Sat 10p	Clear	45°7° (likely 45°7° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	79%	0%	0
Sat 11p	Clear	45°7° (likely 43°6° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	79%	0%	0
Sun 12a	Clear	44°7° (likely 42°6° to 50°10°)	44°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	82%	0%	0
Sun 1a	Clear	44°7° (likely 42°6° to 50°10°)	44°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	82%	0%	0
Sun 2a	Clear	43°6° (likely 42°6° to 50°10°)	43°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	0%	0
Sun 3a	Clear	43°6° (likely 42°6° to 50°10°)	43°6°	0%	0 mph0 km/h, gusts 3 mph6 km/h	89%	0%	0
Sun 4a	Clear	43°6° (likely 43°6° to 50°10°)	43°6°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	89%	0%	0
Sun 5a	Clear	43°6° (likely 42°6° to 49°9°)	43°6°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	93%	0%	0
Sun 6a	Clear	43°6° (likely 41°5° to 49°9°)	43°6°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	93%	0%	0
Sun 7a	Sunny	43°6° (likely 41°5° to 49°9°)	43°6°	0%	1 mph2 km/h from NW, gusts 3 mph4 km/h	93%	1%	0
Sun 8a	Sunny	45°7° (likely 42°6° to 50°10°)	45°7°	0%	1 mph2 km/h from N, gusts 2 mph4 km/h	89%	1%	0
Sun 9a	Sunny	48°9° (likely 48°9° to 51°11°)	48°9°	0%	1 mph2 km/h from NW, gusts 2 mph3 km/h	77%	1%	1
Sun 10a	Sunny	53°12° (likely 52°11° to 55°13°)	53°12°	0%	2 mph3 km/h from SW, gusts 3 mph5 km/h	64%	1%	2
Sun 11a	Sunny	57°14° (likely 54°12° to 57°14°)	57°14°	0%	2 mph3 km/h from S, gusts 7 mph11 km/h	53%	1%	3
Sun 12p	Sunny	59°15° (likely 54°12° to 59°15°)	59°15°	0%	3 mph5 km/h from S, gusts 8 mph12 km/h	49%	2%	4
Sun 1p	Sunny	60°16° (likely 55°13° to 60°16°)	60°16°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	47%	4%	4
Sun 2p	Sunny	60°16° (likely 55°13° to 60°16°)	60°16°	0%	6 mph10 km/h from S, gusts 9 mph14 km/h	47%	4%	4
Sun 3p	Sunny	59°15° (likely 54°12° to 59°15°)	59°15°	0%	6 mph10 km/h from S, gusts 9 mph14 km/h	49%	6%	3
Sun 4p	Sunny	58°14° (likely 53°12° to 58°14°)	58°14°	0%	6 mph10 km/h from S, gusts 8 mph14 km/h	53%	7%	2
Sun 5p	Sunny	57°14° (likely 51°11° to 57°14°)	57°14°	0%	6 mph10 km/h from S, gusts 10 mph16 km/h	55%	7%	1
Sun 6p	Clear	55°13° (likely 49°9° to 55°13°)	55°13°	0%	6 mph10 km/h from SW, gusts 11 mph18 km/h	61%	10%	0
Sun 7p	Clear	53°12° (likely 49°9° to 53°12°)	53°12°	0%	5 mph8 km/h from SW, gusts 13 mph21 km/h	71%	13%	0
Sun 8p	Clear	52°11° (likely 48°9° to 52°11°)	52°11°	0%	5 mph8 km/h from SW, gusts 14 mph22 km/h	77%	14%	0
Sun 9p	Clear	52°11° (likely 48°9° to 52°11°)	52°11°	0%	5 mph8 km/h from SW, gusts 14 mph23 km/h	77%	12%	0
Sun 10p	Clear	52°11° (likely 48°9° to 52°11°)	52°11°	0%	5 mph8 km/h from SW, gusts 14 mph22 km/h	80%	8%	0
Sun 11p	Clear	52°11° (likely 48°9° to 52°11°)	52°11°	0%	5 mph8 km/h from SW, gusts 13 mph21 km/h	80%	4%	0
Mon 12a	Clear	50°10° (likely 49°9° to 51°11°)	48°9°	0%	5 mph8 km/h from SW, gusts 13 mph20 km/h	86%	2%	0
Mon 1a	Clear	49°9° (likely 49°9° to 51°11°)	48°9°	0%	3 mph5 km/h from SW, gusts 13 mph20 km/h	89%	2%	0
Mon 2a	Clear	48°9° (likely 48°9° to 52°11°)	47°8°	0%	3 mph5 km/h from SW, gusts 12 mph20 km/h	93%	1%	0
Mon 3a	Clear	48°9° (likely 48°9° to 51°11°)	47°8°	0%	3 mph5 km/h from SW, gusts 13 mph21 km/h	93%	0%	0
Mon 4a	Clear	50°10° (likely 49°9° to 51°11°)	48°9°	0%	5 mph8 km/h from SW, gusts 14 mph22 km/h	93%	1%	0
Mon 5a	Clear	51°11° (likely 49°9° to 51°11°)	51°11°	0%	6 mph10 km/h from SW, gusts 15 mph24 km/h	93%	1%	0
Mon 6a	Clear	51°11° (likely 49°9° to 52°11°)	51°11°	0%	5 mph8 km/h from SW, gusts 16 mph26 km/h	93%	0%	0
Mon 7a	Sunny	50°10° (likely 48°9° to 51°11°)	48°9°	0%	5 mph8 km/h from SW, gusts 16 mph25 km/h	96%	0%	0
Mon 8a	Sunny	51°11° (likely 49°9° to 52°11°)	51°11°	0%	5 mph8 km/h from SW, gusts 15 mph25 km/h	93%	1%	0
Mon 9a	Sunny	52°11° (likely 52°11° to 55°13°)	52°11°	0%	5 mph8 km/h from SW, gusts 15 mph24 km/h	86%	0%	1

Days ahead

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

Today, Oct 24. Mostly sunny. High 57°14°, low 38°3°. Typical 59°15° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Official NWS forecast
Today: Sunny, with a high near 57. North wind around 7 mph.
Tonight: Clear, with a low around 38. Southwest wind 0 to 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–57°14°
Low, likely
37°3°–49°9°
Typical high / low
59°15° / 45°7°
Wind
12 mph19 km/h, gusts 18 mph28 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 60°16°, low 45°7°. Typical 58°14° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 60. Southwest wind 1 to 6 mph.
Night: Clear, with a low around 45. Southwest wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–60°16°
Low, likely
41°5°–47°8°
Typical high / low
58°14° / 44°7°
Wind
11 mph18 km/h, gusts 18 mph29 km/h
UV peak
4
Monday, Oct 26. Sunny. High 62°17°, low 45°7°. Typical 58°14° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  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, 53°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 62. Southwest wind 5 to 9 mph, with gusts as high as 22 mph.
Night: Mostly clear, with a low around 45. Northwest wind 6 to 16 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–64°18°
Low, likely
45°7°–51°11°
Typical high / low
58°14° / 44°7°
Wind
14 mph22 km/h, gusts 20 mph33 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 51°11°, low 43°6°. Typical 58°14° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 49°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  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 51. North wind 12 to 16 mph.
Night: Mostly clear, with a low around 43. North wind 5 to 10 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
51°11°–57°14°
Low, likely
43°6°–48°9°
Typical high / low
58°14° / 44°7°
Wind
22 mph35 km/h, gusts 30 mph49 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 51°11°, low 46°8°. Typical 58°14° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 51°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 51. Northeast wind around 6 mph.
Night: Partly cloudy, with a low around 46. Southeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
49°9°–52°11°
Low, likely
44°7°–48°9°
Typical high / low
58°14° / 44°7°
Wind
11 mph18 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 57°14°, low 52°11°. Typical 57°14° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 57. South wind 3 to 13 mph.
Night: Mostly clear, with a low around 52. Southwest wind around 12 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
56°13°–58°14°
Low, likely
45°7°–52°11°
Typical high / low
57°14° / 43°6°
Wind
18 mph29 km/h, gusts 26 mph41 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 59°15°, low 49°9°. Typical 57°14° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 59. Southwest wind around 12 mph.
Night: Partly cloudy, with a low around 49. Northwest wind around 9 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–63°17°
Low, likely
49°9°–56°13°
Typical high / low
57°14° / 43°6°
Wind
16 mph26 km/h, gusts 29 mph47 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 57°14°, low 52°11°. Typical 57°14° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
54°12°–60°16°
Low, likely
47°8°–56°13°
Typical high / low
57°14° / 43°6°
Wind
20 mph33 km/h, gusts 28 mph46 km/h
UV peak
2
Sunday, Nov 1. Cloudy. High 57°14°, low 53°12°. Typical 56°13° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 56°13°
  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
52°11°–60°16°
Low, likely
47°8°–56°13°
Typical high / low
56°13° / 43°6°
Wind
16 mph25 km/h, gusts 23 mph37 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 59°15°, low 54°12°. Typical 56°13° / 42°6°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 59°15°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  20% 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
53°12°–62°17°
Low, likely
48°9°–57°14°
Typical high / low
56°13° / 42°6°
Wind
15 mph24 km/h, gusts 26 mph41 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 57°, low 38°.
Tomorrow
Dry, high 60°, low 45°, warming up.
Monday
Dry, high 62°, low 45°.
Rest of week
Mostly dry, highs 51–59°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (BOX) (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

Atlantic Coast at Chatham Harbor (IN MLLW)

1.2 mi

Below flood stage

Level: 5.7 ft

Forecast peak 5.9 ft Sat 11 AM

Reading from Sat 10 AM · NWS gauge page

Atlantic Coast at Dennis Sesuit Harbor (IN MLLW)

11 mi

Below flood stage

Level: 11.2 ft

Forecast peak 11.1 ft Mon 12 PM

Reading from Sat 10 AM · NWS gauge page

Herring River at North Harwich

7.7 mi

Level: 1.7 ft
Flow: 3 cfs

Reading from Sat 9:45 AM · NWS gauge page

For your home

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

Heating this week

About 72% less heating than a typical week.

This week 28Typical 99

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.

Comfort

Dry air outside (dew point 39°F).

Open the windows?

Sun, 1:00 PM–2:00 PM

Good stretch to open the windows.

Is this typical?

Chatham Municipal Airport · official normals 1991–2020 · records 1996–2026

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).

−9°−5°SunOct 18
−6°−3°MonOct 19
+4°+2°TueOct 20
+2°+1°WedOct 21
+3°+1°ThuOct 22
−7°−4°FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 43 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 34 min less
Golden hour: 5:06–6:02 PM; Morning 6:44–7:41 AM
Blue hour: 6:02–6:13 PM; Morning 6:34–6:44 AM; first light 6:34 AM

Stars tonight? Fair

Clear 6:13 PM–6:35 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:11 AM · rises 4:41 PM
Full moon: Oct 26
New moon: Nov 9

Looking east from Chatham. Open water to the horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.