Grand Junction · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Grand Junction & 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
37°
Sun, Aug 23
Coldest night
17°
Thu, Aug 27
Days with precip
3 / 14
of 14 forecast days
Nicest day
Fri, Sep 4
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
34° 19°
57% precip chance
Sat 5 – Sun 6 Sep
32° 16°
typical range
Sat 12 – Sun 13 Sep
28° 15°
typical range
Sat 19 – Sun 20 Sep
31° 15°
typical range
30 days — Grand Junction
14 forecast + 16 climatology
Sun · Today Showers
37°21°1.3 mm⌄
Wind11 mph NW
Gusts21 mph
UV index8 – Very high
Precip chance57%
Sunrise06:34
Sunset19:58
Mon · Tomorrow Mostly cloudy
32°20°0.2 mm⌄
Wind14 mph S
Gusts21 mph
UV index9 – Very high
Precip chance17%
Sunrise06:35
Sunset19:57
Tuesday 25/8 Mostly cloudy
34°19°0.8 mm⌄
Wind15 mph W
Gusts26 mph
UV index8 – Very high
Precip chance36%
Sunrise06:36
Sunset19:55
Wednesday 26/8 Mostly cloudy
33°19°0.5 mm⌄
Wind13 mph S
Gusts22 mph
UV index10 – Very high
Precip chance36%
Sunrise06:37
Sunset19:54
Thursday 27/8 Sunny
35°17°0.7 mm⌄
Wind17 mph NW
Gusts28 mph
UV index8 – Very high
Precip chance36%
Sunrise06:38
Sunset19:52
Friday 28/8 Showers
34°19°2.1 mm⌄
Wind15 mph W
Gusts15 mph
UV index8 – Very high
Precip chance57%
Sunrise06:39
Sunset19:51
Saturday 29/8 Showers
33°20°2.2 mm⌄
Wind10 mph SE
Gusts19 mph
UV index7 – High
Precip chance57%
Sunrise06:40
Sunset19:49
Sunday 30/8 Sunny
34°19°1%⌄
Wind17 mph W
Gusts21 mph
UV index8 – Very high
Precip chance1%
Sunrise06:41
Sunset19:48
Monday 31/8 Sunny
36°19°0%⌄
Wind16 mph W
Gusts27 mph
UV index9 – Very high
Precip chance0%
Sunrise06:42
Sunset19:46
Tuesday 1/9 Sunny
35°21°3%⌄
Wind15 mph NW
Gusts26 mph
UV index9 – Very high
Precip chance3%
Sunrise06:43
Sunset19:45
Wednesday 2/9 Sunny
36°21°2%⌄
Wind12 mph NW
Gusts21 mph
UV index9 – Very high
Precip chance2%
Sunrise06:43
Sunset19:43
Thursday 3/9 Showers
25°19°0.5 mm⌄
Wind18 mph SE
Gusts24 mph
UV index6 – High
Precip chance36%
Sunrise06:44
Sunset19:42
Friday 4/9 Sunny
32°18°3%⌄
Wind6 mph SE
Gusts13 mph
UV index8 – Very high
Precip chance3%
Sunrise06:45
Sunset19:40
Saturday 5/9 Sunny
32°20°0.4 mm⌄
Wind14 mph SE
Gusts21 mph
UV index8 – Very high
Precip chance36%
Sunrise06:46
Sunset19:39
Sunday 6/9 Light rain (climatological)
29°16°1.8 mm⌄
Day≈26–32°
Night≈13–19°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
32°18°20%⌄
Day≈29–35°
Night≈15–21°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
32°18°20%⌄
Day≈29–35°
Night≈15–21°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Light rain (climatological)
30°16°1.3 mm⌄
Day≈27–33°
Night≈13–19°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
28°15°20%⌄
Day≈25–31°
Night≈12–18°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
28°15°20%⌄
Day≈25–31°
Night≈12–18°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Light rain (climatological)
28°15°1.4 mm⌄
Day≈25–31°
Night≈12–18°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
28°15°20%⌄
Day≈25–31°
Night≈12–18°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
30°17°20%⌄
Day≈27–33°
Night≈14–20°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Light rain (climatological)
32°18°2.0 mm⌄
Day≈29–35°
Night≈15–21°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
31°17°20%⌄
Day≈28–34°
Night≈14–20°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
29°16°20%⌄
Day≈26–32°
Night≈13–19°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
28°15°2.2 mm⌄
Day≈25–31°
Night≈12–18°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
27°15°20%⌄
Day≈24–30°
Night≈12–18°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
31°17°20%⌄
Day≈28–34°
Night≈14–20°
Precip≈0.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
32°18°2.1 mm⌄
Day≈29–35°
Night≈15–21°
Precip≈0.8 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 Grand Junction, 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.