Vashon · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Vashon & 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
93°
Tue, Sep 8
Coldest night
48°
Fri, Sep 4
Days with precip
4 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
73° 52°
76% precip chance
Sat 5 – Sun 6 Sep
70° 51°
12% precip chance
Sat 12 – Sun 13 Sep
62° 45°
typical range
Sat 19 – Sun 20 Sep
66° 43°
typical range
30 days — Vashon
14 forecast + 16 climatology
Wed · Today Sunny
82°54°5%⌄
Wind10 mph W
Gusts18 mph
UV index6 – High
Precip chance5%
Sunrise06:20
Sunset20:02
Thu · Tomorrow Mostly cloudy
74°58°11%⌄
Wind11 mph SW
Gusts14 mph
UV index6 – Moderate
Precip chance11%
Sunrise06:22
Sunset20:00
Friday 28/8 Mostly cloudy
76°55°12%⌄
Wind10 mph N
Gusts21 mph
UV index6 – High
Precip chance12%
Sunrise06:23
Sunset19:58
Saturday 29/8 Showers
73°53°4.2 mm⌄
Wind8 mph S
Gusts17 mph
UV index6 – High
Precip chance76%
Sunrise06:24
Sunset19:56
Sunday 30/8 Sunny
72°52°12%⌄
Wind5 mph S
Gusts11 mph
UV index6 – High
Precip chance12%
Sunrise06:26
Sunset19:54
Monday 31/8 Mostly cloudy
60°53°0.9 mm⌄
Wind5 mph S
Gusts9 mph
UV index4 – Moderate
Precip chance59%
Sunrise06:27
Sunset19:52
Tuesday 1/9 Showers
64°55°5.5 mm⌄
Wind9 mph S
Gusts16 mph
UV index4 – Moderate
Precip chance84%
Sunrise06:28
Sunset19:50
Wednesday 2/9 Showers
69°54°12.8 mm⌄
Wind13 mph SW
Gusts25 mph
UV index5 – Moderate
Precip chance85%
Sunrise06:30
Sunset19:48
Thursday 3/9 Showers
58°52°30.0 mm⌄
Wind11 mph SW
Gusts24 mph
UV index4 – Moderate
Precip chance89%
Sunrise06:31
Sunset19:46
Friday 4/9 Fog
66°48°0.7 mm⌄
Wind5 mph S
Gusts10 mph
UV index5 – Moderate
Precip chance51%
Sunrise06:32
Sunset19:44
Saturday 5/9 Mostly cloudy
67°51°12%⌄
Wind5 mph NW
Gusts8 mph
UV index5 – Moderate
Precip chance12%
Sunrise06:34
Sunset19:42
Sunday 6/9 Sunny
70°51°7%⌄
Wind6 mph N
Gusts13 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:35
Sunset19:40
Monday 7/9 Sunny
73°53°5%⌄
Wind5 mph N
Gusts12 mph
UV index6 – High
Precip chance5%
Sunrise06:36
Sunset19:38
Tuesday 8/9 Sunny
93°64°1%⌄
Wind5 mph N
Gusts9 mph
UV index8 – Very high
Precip chance1%
Sunrise06:38
Sunset19:36
Wednesday 9/9 Rain (climatological)
61°44°6.2 mm⌄
Day≈55–66°
Night≈39–50°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
65°47°20%⌄
Day≈59–70°
Night≈41–52°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
64°46°20%⌄
Day≈59–70°
Night≈41–52°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
62°45°10.1 mm⌄
Day≈57–68°
Night≈40–51°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
62°45°20%⌄
Day≈56–67°
Night≈40–50°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
57°42°20%⌄
Day≈52–63°
Night≈37–48°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
59°44°10.5 mm⌄
Day≈54–65°
Night≈38–49°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
60°44°20%⌄
Day≈55–65°
Night≈38–49°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
62°45°20%⌄
Day≈57–68°
Night≈40–51°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
67°48°13.3 mm⌄
Day≈62–73°
Night≈43–54°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
66°47°20%⌄
Day≈60–71°
Night≈42–53°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
58°43°20%⌄
Day≈53–64°
Night≈37–48°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
60°44°6.2 mm⌄
Day≈54–65°
Night≈38–49°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
56°42°20%⌄
Day≈51–62°
Night≈36–47°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
64°46°20%⌄
Day≈58–69°
Night≈41–51°
Precip≈4.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
67°48°10.5 mm⌄
Day≈62–73°
Night≈43–54°
Precip≈4.6 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 Vashon, 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.