Amethyst Harbour · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Amethyst Harbour & 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
72°
Sat, Aug 29
Coldest night
45°
Tue, Sep 1
Days with precip
5 / 14
of 14 forecast days
Nicest day
Sat, Aug 29
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
72° 50°
8% precip chance
Sat 5 – Sun 6 Sep
65° 51°
10% precip chance
Sat 12 – Sun 13 Sep
53° 38°
typical range
Sat 19 – Sun 20 Sep
50° 38°
typical range
30 days — Amethyst Harbour
14 forecast + 16 climatology
Tue · Today Mostly cloudy
68°55°8.6 mm⌄
Wind9 mph S
Gusts19 mph
UV index4 – Moderate
Precip chance82%
Sunrise07:03
Sunset20:52
Wed · Tomorrow Showers
66°56°6.1 mm⌄
Wind11 mph NW
Gusts28 mph
UV index2 – Low
Precip chance86%
Sunrise07:04
Sunset20:50
Thursday 27/8 Showers
66°53°0.3 mm⌄
Wind12 mph N
Gusts27 mph
UV index4 – Moderate
Precip chance36%
Sunrise07:06
Sunset20:48
Friday 28/8 Sunny
66°47°4%⌄
Wind9 mph SW
Gusts18 mph
UV index5 – Moderate
Precip chance4%
Sunrise07:07
Sunset20:46
Saturday 29/8 Sunny
72°50°8%⌄
Wind6 mph SW
Gusts16 mph
UV index6 – High
Precip chance8%
Sunrise07:09
Sunset20:44
Sunday 30/8 Sunny
68°52°5%⌄
Wind8 mph SE
Gusts17 mph
UV index5 – Moderate
Precip chance5%
Sunrise07:10
Sunset20:42
Monday 31/8 Showers
61°50°6.4 mm⌄
Wind13 mph SE
Gusts24 mph
UV index4 – Moderate
Precip chance83%
Sunrise07:11
Sunset20:40
Tuesday 1/9 Showers
53°45°3.9 mm⌄
Wind11 mph N
Gusts23 mph
UV index3 – Moderate
Precip chance85%
Sunrise07:13
Sunset20:38
Wednesday 2/9 Mostly cloudy
55°45°15%⌄
Wind9 mph N
Gusts18 mph
UV index4 – Moderate
Precip chance15%
Sunrise07:14
Sunset20:36
Thursday 3/9 Mostly cloudy
53°46°16%⌄
Wind7 mph SE
Gusts16 mph
UV index3 – Moderate
Precip chance16%
Sunrise07:16
Sunset20:34
Friday 4/9 Mostly cloudy
62°49°16%⌄
Wind8 mph E
Gusts13 mph
UV index4 – Moderate
Precip chance16%
Sunrise07:17
Sunset20:32
Saturday 5/9 Sunny
65°51°6%⌄
Wind8 mph NE
Gusts15 mph
UV index5 – Moderate
Precip chance6%
Sunrise07:18
Sunset20:30
Sunday 6/9 Mostly cloudy
63°52°10%⌄
Wind9 mph SE
Gusts14 mph
UV index5 – Moderate
Precip chance10%
Sunrise07:20
Sunset20:28
Monday 7/9 Mostly cloudy
57°50°0.9 mm⌄
Wind13 mph SE
Gusts30 mph
UV index3 – Moderate
Precip chance67%
Sunrise07:21
Sunset20:26
Tuesday 8/9 Rain (climatological)
51°40°7.4 mm⌄
Day≈46–57°
Night≈35–46°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
54°42°20%⌄
Day≈48–59°
Night≈36–47°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
55°42°20%⌄
Day≈49–60°
Night≈37–47°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
56°43°5.1 mm⌄
Day≈51–62°
Night≈38–49°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
53°41°20%⌄
Day≈47–58°
Night≈36–46°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
47°38°20%⌄
Day≈42–53°
Night≈32–43°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
49°39°7.0 mm⌄
Day≈44–54°
Night≈33–44°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
53°41°20%⌄
Day≈47–58°
Night≈36–46°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
53°41°20%⌄
Day≈48–59°
Night≈36–47°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
58°44°7.2 mm⌄
Day≈53–64°
Night≈39–50°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
54°42°20%⌄
Day≈49–59°
Night≈36–47°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
50°39°20%⌄
Day≈44–55°
Night≈34–45°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
47°38°3.0 mm⌄
Day≈42–53°
Night≈32–43°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
48°38°20%⌄
Day≈42–53°
Night≈33–43°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
53°41°20%⌄
Day≈47–58°
Night≈36–46°
Precip≈2.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
56°43°3.4 mm⌄
Day≈51–61°
Night≈37–48°
Precip≈2.2 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 Amethyst Harbour, 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.