As of 14:39 EDT

Weather in Harwich, MA

59°Current weather

Harwich, Tuesday, 13 October, 14:39

Overcast. Feels like 59°. High 60°, low 53°.

Pressure30.00 inHg
Wind10.4 mph SE
Humidity90%
Visibility6.2 mi
Dew point56°

Monthly outlook for Harwich, MA: average high 59.4°, average low 50.9°. That is 1° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 14 October (71.2°), the coolest 18 October (41.5°).

59.4°/50.9°
Average high / low
+1°
Above normal
2 / 5
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October60.4°58.4°+1.2°
23 October – 1 November57.6°55.5°+1.2°
2 November – 11 Novemberat normal53.5°—

October records over 66 years

77.2°2 October 2019All-time high
34.9°23 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Chatham (5 mi).

Wed, 1471° / 53°0.02Light rain
71 °Light rain

Harwich, Wednesday, 14 October

Light rain. High 71°, low 53°.

Pressure29.80 inHg
Wind10.2 mph W
Humidity75%
Visibility6.2 mi
Dew point63°
Thu, 1559° / 52°0Partly cloudy
59 °Partly cloudy

Harwich, Thursday, 15 October

Partly cloudy. High 59°, low 52°.

Pressure30.21 inHg
Wind14.8 mph N
Humidity67%
Visibility6.2 mi
Dew point46°
Fri, 1667° / 52°0.5Rain
67 °Rain

Harwich, Friday, 16 October

Rain. High 67°, low 52°.

Pressure29.71 inHg
Wind17.9 mph S
Humidity93%
Visibility3.0 mi
Dew point60°
Sat, 1757° / 45°0.26Light rain
57 °Light rain

Harwich, Saturday, 17 October

Light rain. High 57°, low 45°.

Pressure29.83 inHg
Wind22.6 mph NW
Humidity57%
Visibility6.2 mi
Dew point35°
Sun, 1852° / 42°0Clear
52 °Clear

Harwich, Sunday, 18 October

Clear. High 52°, low 42°.

Pressure30.45 inHg
Wind16.7 mph NW
Humidity54%
Visibility—
Dew point31°
Mon, 1962° / 53°0Mostly clear
62 °Mostly clear

Harwich, Monday, 19 October

Mostly clear. High 62°, low 53°.

Pressure30.42 inHg
Wind19.4 mph SW
Humidity61%
Visibility—
Dew point46°
Tue, 2064° / 59°0Overcast
64 °Overcast

Harwich, Tuesday, 20 October

Overcast. High 64°, low 59°.

Pressure30.33 inHg
Wind17.1 mph SW
Humidity64%
Visibility—
Dew point50°
Wed, 2156° / 52°0Clear
56 °Clear

Harwich, Wednesday, 21 October

Clear. High 56°, low 52°.

Pressure30.42 inHg
Wind13.3 mph NE
Humidity56%
Visibility—
Dew point40°
Thu, 2256° / 51°0Clear
56 °Clear

Harwich, Thursday, 22 October

Clear. High 56°, low 51°.

Pressure30.50 inHg
Wind7.7 mph NE
Humidity60%
Visibility—
Dew point41°
Fri, 2362° / 52°0Overcast
62 °Overcast

Harwich, Friday, 23 October

Overcast. High 62°, low 52°.

Pressure30.33 inHg
Wind18.9 mph SW
Humidity67%
Visibility—
Dew point47°
Sat, 2468° / 59°0Overcast
68 °Overcast

Harwich, Saturday, 24 October

Overcast. High 68°, low 59°.

Pressure30.06 inHg
Wind14.6 mph W
Humidity64%
Visibility—
Dew point53°
Sun, 2562° / 55°0Partly cloudy
62 °Partly cloudy

Harwich, Sunday, 25 October

Partly cloudy. High 62°, low 55°.

Pressure29.94 inHg
Wind14.3 mph NW
Humidity57%
Visibility—
Dew point43°
Mon, 2656° / 49°0Clear
56 °Clear

Harwich, Monday, 26 October

Clear. High 56°, low 49°.

Pressure29.88 inHg
Wind13.5 mph W
Humidity54%
Visibility—
Dew point35°
Tue, 2752° / 45°0Clear
52 °Clear

Harwich, Tuesday, 27 October

Clear. High 52°, low 45°.

Pressure30.03 inHg
Wind22.4 mph NW
Humidity46%
Visibility—
Dew point29°
Wed, 2847° / 43°0Overcast
47 °Overcast

Harwich, Wednesday, 28 October

Overcast. High 47°, low 43°.

Pressure30.39 inHg
Wind17 mph NW
Humidity56%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2955° / 48°0.12Climate normal
55 °Climate normal

Harwich, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high55°
Average low48°
Average precipitation0.12 in
Chance of precipitation28%
Record high65° (2023)
Record low37° (1965)
Fri, 3054° / 47°0.16Climate normal
54 °Climate normal

Harwich, Friday, 30 October

Climate normal for this date — 60-year average.

Average high54°
Average low47°
Average precipitation0.16 in
Chance of precipitation32%
Record high66° (2017)
Record low37° (1966)
Sat, 3154° / 48°0.09Climate normal
54 °Climate normal

Harwich, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high54°
Average low48°
Average precipitation0.09 in
Chance of precipitation20%
Record high69° (2024)
Record low38° (1988)
Sun, 0155° / 49°0.13Climate normal
55 °Climate normal

Harwich, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°
Average low49°
Average precipitation0.13 in
Chance of precipitation35%
Record high69° (2024)
Record low39° (1976)
Mon, 0255° / 48°0.14Climate normal
55 °Climate normal

Harwich, Monday, 2 November

Climate normal for this date — 60-year average.

Average high55°
Average low48°
Average precipitation0.14 in
Chance of precipitation30%
Record high64° (1971)
Record low33° (1965)
Tue, 0355° / 47°0.22Climate normal
55 °Climate normal

Harwich, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high55°
Average low47°
Average precipitation0.22 in
Chance of precipitation35%
Record high65° (2017)
Record low37° (2002)
Wed, 0454° / 47°0.05Climate normal
54 °Climate normal

Harwich, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low47°
Average precipitation0.05 in
Chance of precipitation22%
Record high66° (2022)
Record low33° (2002)
Thu, 0554° / 47°0.17Climate normal
54 °Climate normal

Harwich, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high54°
Average low47°
Average precipitation0.17 in
Chance of precipitation40%
Record high69° (2022)
Record low35° (1965)
Fri, 0654° / 47°0.15Climate normal
54 °Climate normal

Harwich, Friday, 6 November

Climate normal for this date — 60-year average.

Average high54°
Average low47°
Average precipitation0.15 in
Chance of precipitation40%
Record high70° (2022)
Record low36° (1987)
Sat, 0754° / 46°0.08Climate normal
54 °Climate normal

Harwich, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low46°
Average precipitation0.08 in
Chance of precipitation30%
Record high70° (2022)
Record low34° (2002)
Sun, 0852° / 45°0.16Climate normal
52 °Climate normal

Harwich, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low45°
Average precipitation0.16 in
Chance of precipitation33%
Record high61° (2020)
Record low34° (2019)
Mon, 0952° / 46°0.11Climate normal
52 °Climate normal

Harwich, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°
Average low46°
Average precipitation0.11 in
Chance of precipitation37%
Record high64° (2020)
Record low31° (1976)
Tue, 1053° / 45°0.2Climate normal
53 °Climate normal

Harwich, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high53°
Average low45°
Average precipitation0.2 in
Chance of precipitation42%
Record high64° (2020)
Record low30° (2017)
Wed, 1152° / 45°0.13Climate normal
52 °Climate normal

Harwich, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high52°
Average low45°
Average precipitation0.13 in
Chance of precipitation42%
Record high66° (2020)
Record low30° (2017)

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 Harwich, 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 Harwich, 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.