Monthly outlook for Lynn, MA: average high 65.9°, average low 50.8°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 17 October (83.4°), the coolest 15 October (42.6°).
65.9°/50.8°
Average high / low
+3.4°
Above normal
4 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
67.7°
60.7°
+3.9°
18 October – 27 October
62.9°
57.6°
+2.9°
28 October – 6 November
at normal
54.6°
—
October records over 66 years
81.7°6 October 2025All-time high
26.8°31 October 2020All-time low
Fri, 0968° / 48°0
68 °
Lynn, Friday, 9 October
Mostly clear. High 68°, low 48°.
Pressure30.03 inHg
Wind12.2 mph W
Humidity48%
Visibility6.2 mi
Dew point44°
Sat, 1063° / 46°0
63 °
Lynn, Saturday, 10 October
Clear. High 63°, low 46°.
Pressure30.45 inHg
Wind8.4 mph NW
Humidity45%
Visibility6.2 mi
Dew point38°
Sun, 1168° / 44°0
68 °
Lynn, Sunday, 11 October
Overcast. High 68°, low 44°.
Pressure30.39 inHg
Wind6.4 mph SW
Humidity55%
Visibility6.2 mi
Dew point47°
Mon, 1264° / 56°0.05
64 °
Lynn, Monday, 12 October
Light rain. High 64°, low 56°.
Pressure29.85 inHg
Wind6 mph SW
Humidity84%
Visibility—
Dew point57°
Tue, 1373° / 55°0.25
73 °
Lynn, Tuesday, 13 October
Rain. High 73°, low 55°.
Pressure29.53 inHg
Wind13.8 mph W
Humidity72%
Visibility—
Dew point57°
Wed, 1455° / 46°0.02
55 °
Lynn, Wednesday, 14 October
Light rain. High 55°, low 46°.
Pressure29.74 inHg
Wind19.1 mph NW
Humidity50%
Visibility—
Dew point33°
Thu, 1558° / 43°0
58 °
Lynn, Thursday, 15 October
Partly cloudy. High 58°, low 43°.
Pressure30.24 inHg
Wind8.6 mph NW
Humidity35%
Visibility—
Dew point26°
Fri, 1673° / 53°0
73 °
Lynn, Friday, 16 October
Overcast. High 73°, low 53°.
Pressure30.18 inHg
Wind14.3 mph SW
Humidity55%
Visibility—
Dew point46°
Sat, 1783° / 63°0
83 °
Lynn, Saturday, 17 October
Clear. High 83°, low 63°.
Pressure30.12 inHg
Wind9.8 mph SW
Humidity58%
Visibility—
Dew point59°
Sun, 1875° / 59°0
75 °
Lynn, Sunday, 18 October
Light rain. High 75°, low 59°.
Pressure30.21 inHg
Wind10.4 mph SW
Humidity68%
Visibility—
Dew point56°
Mon, 1965° / 55°0.27
65 °
Lynn, Monday, 19 October
Light rain. High 65°, low 55°.
Pressure30.06 inHg
Wind12.2 mph NE
Humidity97%
Visibility—
Dew point63°
Tue, 2060° / 54°0
60 °
Lynn, Tuesday, 20 October
Overcast. High 60°, low 54°.
Pressure30.09 inHg
Wind7.3 mph SW
Humidity67%
Visibility—
Dew point46°
Wed, 2163° / 49°0.01
63 °
Lynn, Wednesday, 21 October
Light rain. High 63°, low 49°.
Pressure29.91 inHg
Wind10.6 mph N
Humidity53%
Visibility—
Dew point40°
Thu, 2256° / 43°0
56 °
Lynn, Thursday, 22 October
Clear. High 56°, low 43°.
Pressure30.21 inHg
Wind9.8 mph NW
Humidity50%
Visibility—
Dew point32°
Fri, 2359° / 45°0
59 °
Lynn, Friday, 23 October
Overcast. High 59°, low 45°.
Pressure30.39 inHg
Wind7.4 mph S
Humidity63%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2457° / 45°0.13
57 °
Lynn, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.13 in
Chance of precipitation33%
Record high72° (2001)
Record low29° (1969)
Sun, 2557° / 46°0.14
57 °
Lynn, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low46°
Average precipitation0.14 in
Chance of precipitation33%
Record high74° (1963)
Record low35° (2003)
Mon, 2656° / 45°0.14
56 °
Lynn, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.14 in
Chance of precipitation28%
Record high76° (1963)
Record low31° (2018)
Tue, 2756° / 44°0.14
56 °
Lynn, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.14 in
Chance of precipitation23%
Record high76° (1963)
Record low30° (1976)
Wed, 2856° / 44°0.12
56 °
Lynn, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.12 in
Chance of precipitation37%
Record high77° (2023)
Record low30° (1976)
Thu, 2954° / 43°0.14
54 °
Lynn, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.14 in
Chance of precipitation27%
Record high69° (2015)
Record low31° (1965)
Fri, 3054° / 42°0.16
54 °
Lynn, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.16 in
Chance of precipitation32%
Record high68° (1989)
Record low32° (2020)
Sat, 3155° / 42°0.09
55 °
Lynn, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.09 in
Chance of precipitation25%
Record high75° (2024)
Record low27° (2020)
Sun, 0156° / 44°0.11
56 °
Lynn, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.11 in
Chance of precipitation33%
Record high76° (2024)
Record low34° (1964)
Mon, 0256° / 43°0.1
56 °
Lynn, Monday, 2 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.1 in
Chance of precipitation27%
Record high70° (1982)
Record low28° (1965)
Tue, 0355° / 42°0.21
55 °
Lynn, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.21 in
Chance of precipitation35%
Record high72° (2017)
Record low28° (2002)
Wed, 0454° / 42°0.05
54 °
Lynn, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.05 in
Chance of precipitation23%
Record high71° (1987)
Record low30° (2020)
Thu, 0554° / 42°0.17
54 °
Lynn, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.17 in
Chance of precipitation37%
Record high73° (2022)
Record low30° (1965)
Fri, 0653° / 43°0.13
53 °
Lynn, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.13 in
Chance of precipitation38%
Record high74° (2024)
Record low31° (2012)
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 Lynn, 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 Lynn, 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.