Mount Washington · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Mount Washington & 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
38°
Fri, Sep 4
Coldest night
18°
Sat, Aug 29
Days with precip
2 / 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
34° 18°
5% precip chance
Sat 5 – Sun 6 Sep
38° 23°
57% precip chance
Sat 12 – Sun 13 Sep
34° 19°
typical range
Sat 19 – Sun 20 Sep
34° 21°
typical range
30 days — Mount Washington
14 forecast + 16 climatology
Fri · Today Sunny
32°19°4%⌄
Wind10 mph NE
Gusts23 mph
UV index8 – High
Precip chance4%
Sunrise07:08
Sunset20:18
Sat · Tomorrow Sunny
31°18°5%⌄
Wind8 mph NE
Gusts22 mph
UV index8 – High
Precip chance5%
Sunrise07:09
Sunset20:16
Sunday 30/8 Sunny
34°21°4%⌄
Wind11 mph SW
Gusts20 mph
UV index9 – Very high
Precip chance4%
Sunrise07:10
Sunset20:15
Monday 31/8 Sunny
35°22°5%⌄
Wind12 mph SW
Gusts27 mph
UV index9 – Very high
Precip chance5%
Sunrise07:11
Sunset20:13
Tuesday 1/9 Sunny
36°23°3%⌄
Wind11 mph SW
Gusts27 mph
UV index9 – Very high
Precip chance3%
Sunrise07:12
Sunset20:12
Wednesday 2/9 Sunny
36°25°3%⌄
Wind10 mph SW
Gusts26 mph
UV index9 – Very high
Precip chance3%
Sunrise07:12
Sunset20:10
Thursday 3/9 Sunny
38°26°2%⌄
Wind10 mph SW
Gusts32 mph
UV index9 – Very high
Precip chance2%
Sunrise07:13
Sunset20:09
Friday 4/9 Showers
38°28°0.6 mm⌄
Wind9 mph W
Gusts18 mph
UV index9 – Very high
Precip chance36%
Sunrise07:14
Sunset20:07
Saturday 5/9 Showers
38°25°2.0 mm⌄
Wind10 mph E
Gusts22 mph
UV index8 – Very high
Precip chance57%
Sunrise07:15
Sunset20:06
Sunday 6/9 Sunny
37°23°0.6 mm⌄
Wind6 mph W
Gusts9 mph
UV index9 – Very high
Precip chance36%
Sunrise07:16
Sunset20:04
Monday 7/9 Mostly cloudy
29°23°2.1 mm⌄
Wind10 mph NE
Gusts24 mph
UV index7 – High
Precip chance64%
Sunrise07:17
Sunset20:03
Tuesday 8/9 Mostly cloudy
30°18°10%⌄
Wind9 mph NE
Gusts24 mph
UV index8 – Very high
Precip chance10%
Sunrise07:18
Sunset20:01
Wednesday 9/9 Sunny
34°21°0.7 mm⌄
Wind8 mph SW
Gusts20 mph
UV index8 – Very high
Precip chance36%
Sunrise07:18
Sunset20:00
Thursday 10/9 Sunny
38°20°0.4 mm⌄
Wind15 mph NW
Gusts30 mph
UV index9 – Very high
Precip chance36%
Sunrise07:19
Sunset19:58
Friday 11/9 Light rain (climatological)
31°19°1.3 mm⌄
Day≈28–34°
Night≈16–22°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
32°19°20%⌄
Day≈29–35°
Night≈16–22°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
34°21°20%⌄
Day≈31–37°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Light rain (climatological)
33°20°1.2 mm⌄
Day≈30–36°
Night≈17–23°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
30°18°20%⌄
Day≈27–33°
Night≈15–21°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
29°18°20%⌄
Day≈26–32°
Night≈15–21°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Light rain (climatological)
30°19°1.3 mm⌄
Day≈27–33°
Night≈16–22°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
30°18°20%⌄
Day≈27–33°
Night≈15–21°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
34°21°20%⌄
Day≈31–37°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Light rain (climatological)
34°21°0.8 mm⌄
Day≈31–37°
Night≈18–24°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
31°19°20%⌄
Day≈28–34°
Night≈16–22°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
29°18°20%⌄
Day≈26–32°
Night≈15–21°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Light rain (climatological)
27°17°1.4 mm⌄
Day≈24–30°
Night≈14–20°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
29°18°20%⌄
Day≈26–32°
Night≈15–21°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
32°20°20%⌄
Day≈29–35°
Night≈17–23°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Light rain (climatological)
34°21°1.3 mm⌄
Day≈31–37°
Night≈18–24°
Precip≈0.6 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 Mount Washington, 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.