Northwest Harwich · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Northwest Harwich & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
75°
Fri, Sep 11
Coldest night
57°
Sun, Sep 13
Days with precip
4 / 14
of 14 forecast days
Nicest day
Thu, Sep 10
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
68° 60°
38% precip chance
Sat 12 – Sun 13 Sep
67° 57°
59% precip chance
Sat 19 – Sun 20 Sep
68° 61°
typical range
Sat 26 – Sun 27 Sep
66° 59°
typical range
30 days — Northwest Harwich
14 forecast + 16 climatology
Tue · Today Mostly cloudy
72°59°7.8 mm⌄
Wind21 mph SE
Gusts29 mph
UV index1 – Low
Precip chance86%
Sunrise06:06
Sunset19:14
Wed · Tomorrow Mostly cloudy
70°64°14%⌄
Wind15 mph SE
Gusts21 mph
UV index7 – High
Precip chance14%
Sunrise06:07
Sunset19:12
Thursday 3/9 Showers
73°66°4.5 mm⌄
Wind19 mph S
Gusts29 mph
UV index5 – Moderate
Precip chance86%
Sunrise06:08
Sunset19:11
Friday 4/9 Mostly cloudy
69°63°23%⌄
Wind16 mph N
Gusts22 mph
UV index6 – High
Precip chance23%
Sunrise06:09
Sunset19:09
Saturday 5/9 Showers
68°64°0.4 mm⌄
Wind25 mph N
Gusts34 mph
UV index5 – Moderate
Precip chance38%
Sunrise06:10
Sunset19:07
Sunday 6/9 Sunny
65°60°5%⌄
Wind21 mph NE
Gusts30 mph
UV index5 – Moderate
Precip chance5%
Sunrise06:11
Sunset19:06
Monday 7/9 Sunny
75°60°9%⌄
Wind18 mph SW
Gusts30 mph
UV index6 – High
Precip chance9%
Sunrise06:12
Sunset19:04
Tuesday 8/9 Showers
73°69°1.4 mm⌄
Wind20 mph SW
Gusts31 mph
UV index5 – Moderate
Precip chance66%
Sunrise06:13
Sunset19:02
Wednesday 9/9 Sunny
68°62°0.1 mm⌄
Wind16 mph NE
Gusts20 mph
UV index5 – Moderate
Precip chance18%
Sunrise06:14
Sunset19:00
Thursday 10/9 Sunny
70°61°6%⌄
Wind19 mph S
Gusts31 mph
UV index6 – High
Precip chance6%
Sunrise06:15
Sunset18:59
Friday 11/9 Sunny
75°68°17%⌄
Wind18 mph SW
Gusts32 mph
UV index6 – High
Precip chance17%
Sunrise06:16
Sunset18:57
Saturday 12/9 Sunny
67°62°3.4 mm⌄
Wind15 mph N
Gusts25 mph
UV index5 – Moderate
Precip chance59%
Sunrise06:17
Sunset18:55
Sunday 13/9 Partly cloudy
61°57°17%⌄
Wind16 mph NW
Gusts20 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:18
Sunset18:54
Monday 14/9 Sunny
65°60°6%⌄
Wind14 mph NW
Gusts17 mph
UV index5 – Moderate
Precip chance6%
Sunrise06:19
Sunset18:52
Tuesday 15/9 Rain (climatological)
72°64°3.1 mm⌄
Day≈67–78°
Night≈59–70°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
71°63°20%⌄
Day≈65–76°
Night≈58–69°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
73°65°20%⌄
Day≈68–79°
Night≈60–70°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
71°64°4.8 mm⌄
Day≈65–76°
Night≈58–69°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
68°62°20%⌄
Day≈63–73°
Night≈56–67°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
67°61°20%⌄
Day≈62–73°
Night≈56–67°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
65°60°4.4 mm⌄
Day≈60–71°
Night≈55–65°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
71°64°20%⌄
Day≈65–76°
Night≈58–69°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
74°66°20%⌄
Day≈69–80°
Night≈60–71°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
73°65°4.6 mm⌄
Day≈68–79°
Night≈60–70°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
69°62°20%⌄
Day≈64–75°
Night≈57–68°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
66°61°20%⌄
Day≈61–71°
Night≈55–66°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
63°59°4.4 mm⌄
Day≈57–68°
Night≈53–64°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
65°60°20%⌄
Day≈60–71°
Night≈55–65°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
72°64°20%⌄
Day≈66–77°
Night≈58–69°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
73°65°2.2 mm⌄
Day≈67–78°
Night≈59–70°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for Northwest Harwich, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.