Greeley · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Greeley & 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°
Fri, Aug 21
Coldest night
15°
Mon, Aug 31
Days with precip
6 / 14
of 14 forecast days
Nicest day
Thu, Aug 20
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
37° 18°
36% precip chance
Sat 29 – Sun 30 Aug
35° 16°
36% precip chance
Sat 5 – Sun 6 Sep
32° 12°
typical range
Sat 12 – Sun 13 Sep
32° 13°
typical range
30 days — Greeley
14 forecast + 16 climatology
Wed · Today Showers
34°15°1.9 mm⌄
Wind11 mph NE
Gusts21 mph
UV index9 – Very high
Precip chance57%
Sunrise06:13
Sunset19:51
Thu · Tomorrow Sunny
34°17°2%⌄
Wind12 mph E
Gusts23 mph
UV index10 – Very high
Precip chance2%
Sunrise06:14
Sunset19:49
Friday 21/8 Sunny
37°19°2%⌄
Wind19 mph SW
Gusts34 mph
UV index10 – Very high
Precip chance2%
Sunrise06:15
Sunset19:48
Saturday 22/8 Sunny
37°18°0.2 mm⌄
Wind23 mph NW
Gusts32 mph
UV index10 – Very high
Precip chance17%
Sunrise06:16
Sunset19:46
Sunday 23/8 Mostly cloudy
34°20°0.6 mm⌄
Wind25 mph NW
Gusts35 mph
UV index8 – Very high
Precip chance36%
Sunrise06:17
Sunset19:45
Monday 24/8 Showers
33°19°1.2 mm⌄
Wind16 mph W
Gusts27 mph
UV index8 – Very high
Precip chance57%
Sunrise06:18
Sunset19:43
Tuesday 25/8 Sunny
34°16°3.2 mm⌄
Wind17 mph N
Gusts30 mph
UV index8 – Very high
Precip chance57%
Sunrise06:19
Sunset19:42
Wednesday 26/8 Sunny
32°15°5.0 mm⌄
Wind22 mph S
Gusts35 mph
UV index8 – Very high
Precip chance62%
Sunrise06:20
Sunset19:40
Thursday 27/8 Mostly cloudy
34°17°5.5 mm⌄
Wind20 mph N
Gusts29 mph
UV index8 – Very high
Precip chance67%
Sunrise06:21
Sunset19:39
Friday 28/8 Mostly cloudy
32°19°1.8 mm⌄
Wind23 mph NE
Gusts29 mph
UV index8 – Very high
Precip chance57%
Sunrise06:22
Sunset19:37
Saturday 29/8 Sunny
35°18°0.5 mm⌄
Wind13 mph SE
Gusts19 mph
UV index7 – High
Precip chance36%
Sunrise06:23
Sunset19:36
Sunday 30/8 Sunny
30°16°0.3 mm⌄
Wind16 mph NE
Gusts27 mph
UV index7 – High
Precip chance36%
Sunrise06:24
Sunset19:34
Monday 31/8 Mostly cloudy
34°15°0.6 mm⌄
Wind12 mph SE
Gusts21 mph
UV index8 – Very high
Precip chance38%
Sunrise06:25
Sunset19:32
Tuesday 1/9 Sunny
34°17°0.6 mm⌄
Wind22 mph N
Gusts28 mph
UV index8 – Very high
Precip chance36%
Sunrise06:26
Sunset19:31
Wednesday 2/9 Rain (climatological)
31°15°4.4 mm⌄
Day≈28–34°
Night≈12–18°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
32°15°20%⌄
Day≈29–35°
Night≈12–18°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
31°15°20%⌄
Day≈28–34°
Night≈12–18°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Rain (climatological)
32°15°4.4 mm⌄
Day≈29–35°
Night≈12–18°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
28°12°20%⌄
Day≈25–31°
Night≈9–15°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
28°12°20%⌄
Day≈25–31°
Night≈9–15°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Rain (climatological)
26°12°4.9 mm⌄
Day≈23–29°
Night≈9–15°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
30°14°20%⌄
Day≈27–33°
Night≈11–17°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
31°14°20%⌄
Day≈28–34°
Night≈11–17°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
32°15°4.1 mm⌄
Day≈29–35°
Night≈12–18°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
32°15°20%⌄
Day≈29–35°
Night≈12–18°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
29°13°20%⌄
Day≈26–32°
Night≈10–16°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
26°12°2.3 mm⌄
Day≈23–29°
Night≈9–15°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
27°12°20%⌄
Day≈24–30°
Night≈9–15°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
29°13°20%⌄
Day≈26–32°
Night≈10–16°
Precip≈1.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
31°14°3.4 mm⌄
Day≈28–34°
Night≈11–17°
Precip≈1.8 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 Greeley, 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.