Observed 2:50 PM EDT at KFIT

South Lancaster, MA weather

Sunny and 63°17°, jacket by 6 PM.

Mostly agree

Now 63°17°

Sunny

Wind: Calm; Light through 3 AM
Dew point: 25°−4°; Dry · up to 36°2° by 4 PM (comfortable)
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 31Good; Main pollutant: Ozone
Pressure: 30.48 inHg1032 hPa; Falling · −0.05 inHg−1.6 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 8 PM
Below freezing tonight 5–8 AM (low 32°0°)
Low 32°0° tonight at 5 AM
Above 50°10° tomorrow by 10 AM

This afternoonNear 60°16° · Clear
TonightDown to 32°0° by 5 AM · freezing, low 32°0° · Clear
Tomorrow morningUp to 60°16° by 11 AM · freezing, low 32°0° · Clear
Tomorrow afternoonUp to 67°19° by 2 PM · Clear
Tomorrow nightDown to 38°3° by 5 AM · Clear
Monday morningUp to 58°14° by 11 AM · Partly cloudy
Monday afternoonUp to 66°19° by 2 PM · 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	60°16° (likely 58°14° to 62°17°)	60°16°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	39%	5%	2
Sat 4p	Sunny	60°16° (likely 58°14° to 61°16°)	60°16°	0%	1 mph2 km/h from N, gusts 6 mph9 km/h	41%	1%	1
Sat 5p	Sunny	59°15° (likely 55°13° to 59°15°)	59°15°	0%	1 mph2 km/h from E, gusts 4 mph7 km/h	49%	0%	0
Sat 6p	Clear	54°12° (likely 50°10° to 54°12°)	54°12°	0%	2 mph3 km/h from S, gusts 4 mph6 km/h	55%	0%	0
Sat 7p	Clear	51°11° (likely 45°7° to 51°11°)	51°11°	0%	2 mph3 km/h from SW, gusts 4 mph7 km/h	61%	0%	0
Sat 8p	Clear	44°7° (likely 42°6° to 47°8°)	42°6°	0%	3 mph5 km/h from W, gusts 4 mph6 km/h	51%	0%	0
Sat 9p	Clear	42°6° (likely 40°4° to 44°7°)	40°4°	0%	3 mph5 km/h from W, gusts 4 mph6 km/h	57%	0%	0
Sat 10p	Clear	41°5° (likely 38°3° to 43°6°)	39°4°	0%	3 mph5 km/h from W, gusts 5 mph7 km/h	65%	0%	0
Sat 11p	Clear	40°4° (likely 36°2° to 42°6°)	38°3°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	67%	0%	0
Sun 12a	Clear	39°4° (likely 35°2° to 41°5°)	37°3°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	70%	6%	0
Sun 1a	Clear	36°2° (likely 35°2° to 40°4°)	33°1°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	79%	7%	0
Sun 2a	Clear	35°2° (likely 34°1° to 40°4°)	32°0°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	82%	8%	0
Sun 3a	Clear	34°1° (likely 34°1° to 39°4°)	31°−1°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	85%	8%	0
Sun 4a	Clear	33°1° (likely 33°1° to 39°4°)	30°−1°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	85%	8%	0
Sun 5a	Clear	32°0° (likely 32°0° to 39°4°)	29°−2°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	89%	9%	0
Sun 6a	Clear	32°0° (likely 32°0° to 39°4°)	29°−2°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	96%	9%	0
Sun 7a	Sunny	32°0° (likely 32°0° to 39°4°)	29°−2°	0%	3 mph5 km/h from W, gusts 5 mph7 km/h	96%	9%	0
Sun 8a	Sunny	34°1° (likely 34°1° to 40°4°)	34°1°	0%	2 mph3 km/h from W, gusts 5 mph7 km/h	89%	8%	0
Sun 9a	Sunny	43°6° (likely 42°6° to 46°8°)	43°6°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	62%	0%	1
Sun 10a	Sunny	53°12° (likely 49°9° to 55°13°)	53°12°	0%	2 mph3 km/h from W, gusts 4 mph7 km/h	46%	0%	2
Sun 11a	Sunny	60°16° (likely 55°13° to 60°16°)	60°16°	0%	2 mph3 km/h from W, gusts 6 mph9 km/h	39%	0%	3
Sun 12p	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	2 mph3 km/h from W, gusts 7 mph12 km/h	35%	0%	4
Sun 1p	Sunny	66°19° (likely 62°17° to 66°19°)	66°19°	0%	3 mph5 km/h from SW, gusts 10 mph15 km/h	32%	0%	4
Sun 2p	Sunny	67°19° (likely 63°17° to 67°19°)	67°19°	0%	5 mph8 km/h from SW, gusts 9 mph14 km/h	30%	0%	4
Sun 3p	Sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	5 mph8 km/h from SW, gusts 9 mph14 km/h	32%	0%	3
Sun 4p	Sunny	66°19° (likely 62°17° to 66°19°)	66°19°	0%	5 mph8 km/h from SW, gusts 9 mph14 km/h	33%	0%	2
Sun 5p	Sunny	62°17° (likely 58°14° to 64°18°)	62°17°	0%	5 mph8 km/h from SW, gusts 9 mph14 km/h	39%	0%	1
Sun 6p	Clear	56°13° (likely 52°11° to 56°13°)	56°13°	0%	3 mph5 km/h from SW, gusts 8 mph14 km/h	47%	0%	0
Sun 7p	Clear	51°11° (likely 48°9° to 52°11°)	51°11°	0%	3 mph5 km/h from SW, gusts 8 mph14 km/h	56%	0%	0
Sun 8p	Clear	45°7° (likely 45°7° to 49°9°)	44°7°	0%	3 mph5 km/h from W, gusts 8 mph13 km/h	68%	0%	0
Sun 9p	Clear	44°7° (likely 43°6° to 47°8°)	42°6°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	70%	0%	0
Sun 10p	Clear	42°6° (likely 42°6° to 46°8°)	40°4°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	76%	0%	0
Sun 11p	Clear	42°6° (likely 42°6° to 46°8°)	40°4°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	79%	2%	0
Mon 12a	Clear	41°5° (likely 41°5° to 46°8°)	39°4°	0%	3 mph5 km/h from W, gusts 9 mph14 km/h	79%	6%	0
Mon 1a	Clear	40°4° (likely 40°4° to 45°7°)	38°3°	0%	3 mph5 km/h from W, gusts 9 mph15 km/h	82%	23%	0
Mon 2a	Clear	40°4° (likely 40°4° to 46°8°)	38°3°	0%	3 mph5 km/h from W, gusts 10 mph16 km/h	82%	0%	0
Mon 3a	Clear	40°4° (likely 40°4° to 46°8°)	38°3°	0%	3 mph5 km/h from W, gusts 11 mph17 km/h	79%	0%	0
Mon 4a	Clear	40°4° (likely 39°4° to 46°8°)	38°3°	0%	3 mph5 km/h from W, gusts 10 mph17 km/h	82%	2%	0
Mon 5a	Clear	38°3° (likely 38°3° to 45°7°)	36°2°	0%	3 mph5 km/h from W, gusts 10 mph16 km/h	89%	1%	0
Mon 6a	Clear	38°3° (likely 38°3° to 44°7°)	36°2°	0%	3 mph5 km/h from W, gusts 9 mph15 km/h	89%	12%	0
Mon 7a	Sunny	37°3° (likely 37°3° to 44°7°)	34°1°	0%	3 mph5 km/h from W, gusts 8 mph14 km/h	96%	21%	0
Mon 8a	Sunny	39°4° (likely 39°4° to 45°7°)	36°2°	0%	5 mph8 km/h from W, gusts 7 mph12 km/h	89%	23%	0
Mon 9a	Sunny	46°8° (likely 46°8° to 54°12°)	44°7°	0%	5 mph8 km/h from W, gusts 10 mph16 km/h	73%	32%	1
Mon 10a	Mostly sunny	53°12° (likely 53°12° to 59°15°)	53°12°	0%	5 mph8 km/h from W, gusts 12 mph20 km/h	69%	42%	2
Mon 11a	Mostly sunny	58°14° (likely 58°14° to 62°17°)	58°14°	0%	5 mph8 km/h from W, gusts 15 mph24 km/h	60%	26%	3
Mon 12p	Mostly sunny	62°17° (likely 61°16° to 65°18°)	62°17°	0%	6 mph10 km/h from W, gusts 14 mph22 km/h	54%	25%	4
Mon 1p	Mostly sunny	65°18° (likely 64°18° to 67°19°)	65°18°	0%	7 mph11 km/h from W, gusts 16 mph25 km/h	50%	10%	4
Mon 2p	Sunny	66°19° (likely 65°18° to 68°20°)	66°19°	0%	7 mph11 km/h from W, gusts 15 mph25 km/h	48%	13%	4

Days ahead

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

Today, Oct 24. Partly sunny. High 61°16°, low 30°−1°. Typical 56°13° / 40°4°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
2. Evening
  6 PM–midnight
  Clear, 44°7°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 32°0°
  Dry
Official NWS forecast
Today: Sunny, with a high near 61. North wind around 2 mph.
Tonight: Areas of frost after 1am. Clear, with a low around 30. West wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
28°−2°–33°1°
Typical high / low
56°13° / 40°4°
Wind
5 mph9 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 68°20°, low 36°2°. Typical 56°13° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Day: Areas of frost before 9am. Sunny. High near 68, with temperatures falling to around 62 in the afternoon. West wind around 5 mph.
Night: Clear, with a low around 36. West wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
33°1°–38°3°
Typical high / low
56°13° / 39°4°
Wind
8 mph14 km/h, gusts 16 mph26 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 67°19°, low 38°3°. Typical 55°13° / 39°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  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, 44°6°
  Dry
Official NWS forecast
Day: Sunny, with a high near 67. West wind 3 to 7 mph.
Night: Mostly clear, with a low around 38. Northwest wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–68°20°
Low, likely
38°3°–44°7°
Typical high / low
55°13° / 39°4°
Wind
9 mph14 km/h, gusts 22 mph36 km/h
UV peak
4
Tuesday, Oct 27. Sunny. High 54°12°, low 28°−2°. Typical 55°13° / 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 40°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 52°11°
  Dry
3. Evening
  6 PM–midnight
  Clear, 39°4°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 31°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 54. North wind 2 to 6 mph.
Night: Clear, with a low around 28. North wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
52°11°–54°12°
Low, likely
28°−2°–37°3°
Typical high / low
55°13° / 38°3°
Wind
10 mph17 km/h, gusts 25 mph40 km/h
UV peak
4
Wednesday, Oct 28. Mostly sunny. High 55°13°, low 36°2°. Typical 55°13° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 43°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 55. Northeast wind around 2 mph.
Night: Partly cloudy, with a low around 36. Southwest wind around 5 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
51°11°–57°14°
Low, likely
28°−2°–36°2°
Typical high / low
55°13° / 38°3°
Wind
7 mph10 km/h, gusts 16 mph25 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 63°17°, low 47°8°. Typical 54°12° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 63. Southwest wind 5 to 10 mph.
Night: Mostly clear, with a low around 47. Southwest wind around 8 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–67°19°
Low, likely
38°3°–47°8°
Typical high / low
54°12° / 38°3°
Wind
13 mph22 km/h, gusts 33 mph54 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 67°19°, low 43°6°. Typical 54°12° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 67. West wind around 7 mph.
Night: Partly cloudy, with a low around 43. Northwest wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–72°22°
Low, likely
43°6°–51°11°
Typical high / low
54°12° / 38°3°
Wind
11 mph18 km/h, gusts 30 mph48 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 63°17°, low 44°7°. Typical 54°12° / 37°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 46°8°
  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
55°13°–68°20°
Low, likely
42°6°–46°8°
Typical high / low
54°12° / 37°3°
Wind
6 mph10 km/h, gusts 23 mph37 km/h
UV peak
2
Sunday, Nov 1. Cloudy. High 66°19°, low 47°8°. Typical 53°12° / 37°3°. Rain, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  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
59°15°–69°21°
Low, likely
40°4°–51°11°
Typical high / low
53°12° / 37°3°
Wind
10 mph15 km/h, gusts 22 mph36 km/h
UV peak
3
Monday, Nov 2. Showers. High 64°18°, low 56°13°. Typical 53°12° / 37°3°. Rain 0.28 in7.1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 57°14°
  30% chance · 0.05 in1.2 mm
2. Afternoon
  noon–6 PM
  Showers, 62°17°
  20% chance · 0.1 in2.5 mm
3. Evening
  6 PM–midnight
  Showers, 61°16°
  20% chance · 0.23 in5.9 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
58°14°–69°21°
Low, likely
49°9°–64°18°
Typical high / low
53°12° / 37°3°
Wind
13 mph20 km/h, gusts 36 mph58 km/h

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 30°.
Tomorrow
Dry, high 68°, low 36°, warming up.
Monday
Dry, high 67°, low 38°.
Rest of week
Mostly dry, highs 54–67°.

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

North Nashua River at Fitchburg

11 mi

Below flood stage

Level: 2.6 ft
Flow: 52 cfs

Forecast peak 2.6 ft Sat 8 PM

Reading from Sat 1:30 PM · NWS gauge page

Assabet River at Maynard

13 mi

Below flood stage

Level: 2.1 ft
Flow: 107 cfs

Forecast peak 2.1 ft Sat 8 PM

Reading from Sat 1:15 PM · NWS gauge page

Squannacook River at West Groton

14 mi

Below flood stage

Level: 1.9 ft
Flow: 36 cfs

Forecast peak 1.9 ft Sat 8 PM

Reading from Sat 1 PM · NWS gauge page

Nashua River at East Pepperell

17 mi

Below flood stage

Level: 1.5 ft
Flow: 238 cfs

Forecast peak 1.5 ft Sat 8 PM

Reading from Sat 1:45 PM · NWS gauge page

For your home

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

Heating this week

About 73% less heating than a typical week.

This week 35Typical 128

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 14 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 25°F).

Open the windows?

Sun, 11:00 AM–5:00 PM

Good stretch to open the windows.

Is this typical?

Worcester Regional Airport · official normals 1991–2020 · records 1892–2026

Oct 24, today vs a typical year

Today’s expected high is 5°3° warmer than typical.

Last 7 days vs normal

On average 0° warmer than normal (daily mean temperature).

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

South Lancaster weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 40 min; Losing 2 min 39 s a day; shortest Dec 21, 1 h 36 min less
Golden hour: 5:11–6:08 PM; Morning 6:52–7:49 AM
Blue hour: 6:08–6:19 PM; Morning 6:41–6:52 AM; first light 6:41 AM

Stars tonight? Fair

Clear 6:19 PM–6:42 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:19 AM · rises 4:47 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from South Lancaster. The highest point on the skyline is about 5,500 ft, 26 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

South Lancaster, MA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

North Nashua River at Fitchburg

Assabet River at Maynard

Squannacook River at West Groton

Nashua River at East Pepperell

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