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
24°
Tue, Sep 8
Coldest night
16°
Wed, Sep 2
Days with precip
7 / 14
of 14 forecast days
Nicest day
Mon, Sep 14
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
20° 16°
53% precip chance
Sat 12 – Sun 13 Sep
20° 16°
49% precip chance
Sat 19 – Sun 20 Sep
22° 17°
typical range
Sat 26 – Sun 27 Sep
21° 16°
typical range
30 days — Northwest Harwich
14 forecast + 16 climatology
Wed · Today Mostly cloudy
23°16°12%⌄
Wind13 mph SE
Gusts19 mph
UV index7 – High
Precip chance12%
Sunrise06:07
Sunset19:12
Thu · Tomorrow Showers
24°19°11.0 mm⌄
Wind17 mph S
Gusts31 mph
UV index3 – Low
Precip chance91%
Sunrise06:08
Sunset19:11
Friday 4/9 Fog
24°18°2.6 mm⌄
Wind10 mph S
Gusts14 mph
UV index7 – High
Precip chance76%
Sunrise06:09
Sunset19:09
Saturday 5/9 Showers
20°17°0.9 mm⌄
Wind18 mph N
Gusts26 mph
UV index4 – Moderate
Precip chance53%
Sunrise06:10
Sunset19:07
Sunday 6/9 Sunny
18°16°11%⌄
Wind23 mph N
Gusts32 mph
UV index6 – Moderate
Precip chance11%
Sunrise06:11
Sunset19:06
Monday 7/9 Sunny
19°16°4%⌄
Wind14 mph N
Gusts18 mph
UV index5 – Moderate
Precip chance4%
Sunrise06:12
Sunset19:04
Tuesday 8/9 Mostly cloudy
24°17°3.4 mm⌄
Wind17 mph SW
Gusts33 mph
UV index5 – Moderate
Precip chance72%
Sunrise06:13
Sunset19:02
Wednesday 9/9 Showers
20°17°4.7 mm⌄
Wind13 mph W
Gusts20 mph
UV index4 – Moderate
Precip chance83%
Sunrise06:14
Sunset19:00
Thursday 10/9 Showers
20°16°33.9 mm⌄
Wind19 mph SE
Gusts31 mph
UV index5 – Moderate
Precip chance86%
Sunrise06:15
Sunset18:59
Friday 11/9 Sunny
21°17°1.2 mm⌄
Wind23 mph N
Gusts32 mph
UV index6 – High
Precip chance57%
Sunrise06:16
Sunset18:57
Saturday 12/9 Showers
18°16°0.5 mm⌄
Wind22 mph N
Gusts30 mph
UV index4 – Moderate
Precip chance49%
Sunrise06:17
Sunset18:55
Sunday 13/9 Mostly cloudy
20°16°17%⌄
Wind8 mph SE
Gusts17 mph
UV index4 – Moderate
Precip chance17%
Sunrise06:18
Sunset18:54
Monday 14/9 Sunny
21°17°11%⌄
Wind14 mph S
Gusts24 mph
UV index6 – High
Precip chance11%
Sunrise06:19
Sunset18:52
Tuesday 15/9 Showers
24°20°1.0 mm⌄
Wind14 mph S
Gusts23 mph
UV index6 – High
Precip chance63%
Sunrise06:20
Sunset18:50
Wednesday 16/9 Rain (climatological)
23°18°10.3 mm⌄
Day≈20–26°
Night≈15–21°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
22°17°20%⌄
Day≈19–25°
Night≈14–20°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
23°18°20%⌄
Day≈20–26°
Night≈15–21°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
22°18°15.9 mm⌄
Day≈19–25°
Night≈15–21°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
20°17°20%⌄
Day≈17–23°
Night≈14–20°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
20°16°20%⌄
Day≈17–23°
Night≈13–19°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
19°16°14.6 mm⌄
Day≈16–22°
Night≈13–19°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
22°18°20%⌄
Day≈19–25°
Night≈15–21°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
24°19°20%⌄
Day≈21–27°
Night≈16–22°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
23°18°15.0 mm⌄
Day≈20–26°
Night≈15–21°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
21°17°20%⌄
Day≈18–24°
Night≈14–20°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
19°16°20%⌄
Day≈16–22°
Night≈13–19°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
17°15°14.6 mm⌄
Day≈14–20°
Night≈12–18°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
19°16°20%⌄
Day≈16–22°
Night≈13–19°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
22°18°20%⌄
Day≈19–25°
Night≈15–21°
Precip≈5.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Rain (climatological)
16°12°7.3 mm⌄
Day≈13–19°
Night≈9–15°
Precip≈5.1 in / October
(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.