As of 13:53 EST

Weather in Chelmsford, MA

66°Current weather

Chelmsford, Friday, 6 November, 13:53

Light rain. Feels like 66°. High 66°, low 61°.

Pressure29.80 inHg
Wind3.4 mph S
Humidity90%
Visibility6.2 mi
Dew point63°

Monthly outlook for Chelmsford, MA: average high 54.2°, average low 39.9°. That is 2.6° above the climate normal for November. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 6 November (65.6°), the coolest 14 November (27.7°).

54.2°/39.9°
Average high / low
+2.6°
Above normal
3 / 5
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
6 November – 15 November51.6°50.8°+0.5°
16 November – 25 November58.5°46.5°+6.7°
26 November – 5 Decemberat normal44.1°—

November records over 66 years

76.1°6 November 2022All-time high
5°24 November 1989All-time low

Climate normals and records are computed from the nearest reference point — Lowell (3 mi).

Sat, 0761° / 50°0.09Light rain
61 °Light rain

Chelmsford, Saturday, 7 November

Light rain. High 61°, low 50°.

Pressure29.77 inHg
Wind6.8 mph NE
Humidity75%
Visibility6.2 mi
Dew point49°
Sun, 0858° / 45°0.24Rain
58 °Rain

Chelmsford, Sunday, 8 November

Rain. High 58°, low 45°.

Pressure29.71 inHg
Wind14 mph NW
Humidity48%
Visibility6.2 mi
Dew point38°
Mon, 0954° / 43°0Light rain
54 °Light rain

Chelmsford, Monday, 9 November

Light rain. High 54°, low 43°.

Pressure29.62 inHg
Wind12 mph W
Humidity55%
Visibility6.2 mi
Dew point38°
Tue, 1052° / 40°0Overcast
52 °Overcast

Chelmsford, Tuesday, 10 November

Overcast. High 52°, low 40°.

Pressure29.83 inHg
Wind8.3 mph W
Humidity58%
Visibility6.2 mi
Dew point37°
Wed, 1154° / 41°0Partly cloudy
54 °Partly cloudy

Chelmsford, Wednesday, 11 November

Partly cloudy. High 54°, low 41°.

Pressure29.80 inHg
Wind11.5 mph NW
Humidity57%
Visibility—
Dew point36°
Thu, 1246° / 33°0Overcast
46 °Overcast

Chelmsford, Thursday, 12 November

Overcast. High 46°, low 33°.

Pressure29.88 inHg
Wind7.6 mph NW
Humidity54%
Visibility—
Dew point27°
Fri, 1341° / 29°0Mostly clear
41 °Mostly clear

Chelmsford, Friday, 13 November

Mostly clear. High 41°, low 29°.

Pressure29.94 inHg
Wind7.7 mph N
Humidity39%
Visibility—
Dew point13°
Sat, 1441° / 28°0Overcast
41 °Overcast

Chelmsford, Saturday, 14 November

Overcast. High 41°, low 28°.

Pressure29.97 inHg
Wind7 mph NW
Humidity41%
Visibility—
Dew point14°
Sun, 1544° / 29°0Clear
44 °Clear

Chelmsford, Sunday, 15 November

Clear. High 44°, low 29°.

Pressure30.03 inHg
Wind9.1 mph NW
Humidity46%
Visibility—
Dew point19°
Mon, 1658° / 34°0Overcast
58 °Overcast

Chelmsford, Monday, 16 November

Overcast. High 58°, low 34°.

Pressure30.00 inHg
Wind8.5 mph W
Humidity65%
Visibility—
Dew point36°
Tue, 1762° / 43°0Clear
62 °Clear

Chelmsford, Tuesday, 17 November

Clear. High 62°, low 43°.

Pressure30.15 inHg
Wind7.6 mph W
Humidity63%
Visibility—
Dew point42°
Wed, 1861° / 44°0Clear
61 °Clear

Chelmsford, Wednesday, 18 November

Clear. High 61°, low 44°.

Pressure30.30 inHg
Wind10.3 mph NW
Humidity60%
Visibility—
Dew point43°
Thu, 1951° / 36°0Clear
51 °Clear

Chelmsford, Thursday, 19 November

Clear. High 51°, low 36°.

Pressure30.71 inHg
Wind7.7 mph SW
Humidity55%
Visibility—
Dew point30°
Fri, 2061° / 42°0Overcast
61 °Overcast

Chelmsford, Friday, 20 November

Overcast. High 61°, low 42°.

Pressure30.39 inHg
Wind10.3 mph W
Humidity67%
Visibility—
Dew point43°
Sat, 2158° / 41°0Overcast
58 °Overcast

Chelmsford, Saturday, 21 November

Overcast. High 58°, low 41°.

Pressure30.27 inHg
Wind10.4 mph N
Humidity64%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2245° / 33°0.14Climate normal
45 °Climate normal

Chelmsford, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.14 in
Chance of precipitation40%
Record high62° (1999)
Record low6° (2018)
Mon, 2345° / 31°0.13Climate normal
45 °Climate normal

Chelmsford, Monday, 23 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.13 in
Chance of precipitation25%
Record high67° (1999)
Record low8° (2018)
Tue, 2445° / 32°0.07Climate normal
45 °Climate normal

Chelmsford, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation28%
Record high67° (1979)
Record low5° (1989)
Wed, 2546° / 32°0.14Climate normal
46 °Climate normal

Chelmsford, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.14 in
Chance of precipitation28%
Record high66° (1979)
Record low17° (2013)
Thu, 2647° / 33°0.19Climate normal
47 °Climate normal

Chelmsford, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.19 in
Chance of precipitation45%
Record high63° (1979)
Record low19° (1978)
Fri, 2746° / 33°0.13Climate normal
46 °Climate normal

Chelmsford, Friday, 27 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.13 in
Chance of precipitation42%
Record high62° (1979)
Record low16° (1978)
Sat, 2846° / 33°0.18Climate normal
46 °Climate normal

Chelmsford, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.18 in
Chance of precipitation37%
Record high66° (1990)
Record low16° (1996)
Sun, 2945° / 32°0.07Climate normal
45 °Climate normal

Chelmsford, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation28%
Record high65° (2011)
Record low12° (2014)
Mon, 3044° / 31°0.11Climate normal
44 °Climate normal

Chelmsford, Monday, 30 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.11 in
Chance of precipitation32%
Record high64° (2006)
Record low18° (2013)
Tue, 0144° / 31°0.11Climate normal
44 °Climate normal

Chelmsford, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.11 in
Chance of precipitation32%
Record high66° (2001)
Record low13° (1989)
Wed, 0244° / 30°0.12Climate normal
44 °Climate normal

Chelmsford, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high44°
Average low30°
Average precipitation0.12 in
Chance of precipitation25%
Record high65° (2006)
Record low11° (1989)
Thu, 0343° / 30°0.15Climate normal
43 °Climate normal

Chelmsford, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.15 in
Chance of precipitation35%
Record high65° (2009)
Record low8° (1976)
Fri, 0442° / 29°0.11Climate normal
42 °Climate normal

Chelmsford, Friday, 4 December

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.11 in
Chance of precipitation22%
Record high66° (1982)
Record low9° (1989)
Sat, 0540° / 28°0.14Climate normal
40 °Climate normal

Chelmsford, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high40°
Average low28°
Average precipitation0.14 in
Chance of precipitation32%
Record high64° (2001)
Record low1° (2025)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Chelmsford, MA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Chelmsford, MA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.