McKinney · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
McKinney & 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
43°
Tue, Aug 18
Coldest night
24°
Sun, Aug 23
Days with precip
3 / 14
of 14 forecast days
Nicest day
Mon, Aug 24
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 15 – Sun 16 Aug
41° 28°
1% precip chance
Sat 22 – Sun 23 Aug
41° 24°
57% precip chance
Sat 29 – Sun 30 Aug
43° 27°
typical range
Sat 5 – Sun 6 Sep
39° 25°
typical range
30 days — McKinney
14 forecast + 16 climatology
Thu · Today Sunny
40°27°1%⌄
Wind20 mph S
Gusts31 mph
UV index10 – Very high
Precip chance1%
Sunrise06:47
Sunset20:14
Fri · Tomorrow Sunny
41°26°1%⌄
Wind22 mph S
Gusts33 mph
UV index10 – Very high
Precip chance1%
Sunrise06:48
Sunset20:13
Saturday 15/8 Sunny
40°28°1%⌄
Wind17 mph S
Gusts27 mph
UV index10 – Very high
Precip chance1%
Sunrise06:49
Sunset20:12
Sunday 16/8 Sunny
41°29°1%⌄
Wind19 mph SW
Gusts30 mph
UV index10 – Very high
Precip chance1%
Sunrise06:50
Sunset20:11
Monday 17/8 Sunny
42°30°1%⌄
Wind17 mph S
Gusts28 mph
UV index8 – High
Precip chance1%
Sunrise06:50
Sunset20:10
Tuesday 18/8 Sunny
43°30°1%⌄
Wind19 mph S
Gusts32 mph
UV index10 – Very high
Precip chance1%
Sunrise06:51
Sunset20:09
Wednesday 19/8 Sunny
42°29°1%⌄
Wind20 mph S
Gusts31 mph
UV index10 – Very high
Precip chance1%
Sunrise06:52
Sunset20:08
Thursday 20/8 Sunny
41°28°1%⌄
Wind18 mph S
Gusts29 mph
UV index10 – Very high
Precip chance1%
Sunrise06:52
Sunset20:06
Friday 21/8 Sunny
40°26°2%⌄
Wind19 mph S
Gusts30 mph
UV index9 – Very high
Precip chance2%
Sunrise06:53
Sunset20:05
Saturday 22/8 Sunny
41°24°5.5 mm⌄
Wind25 mph N
Gusts33 mph
UV index10 – Very high
Precip chance57%
Sunrise06:54
Sunset20:04
Sunday 23/8 Showers
33°24°3.3 mm⌄
Wind12 mph NE
Gusts19 mph
UV index8 – Very high
Precip chance57%
Sunrise06:54
Sunset20:03
Monday 24/8 Sunny
36°25°3%⌄
Wind12 mph S
Gusts16 mph
UV index9 – Very high
Precip chance3%
Sunrise06:55
Sunset20:02
Tuesday 25/8 Showers
35°25°2.0 mm⌄
Wind6 mph S
Gusts11 mph
UV index9 – Very high
Precip chance57%
Sunrise06:56
Sunset20:00
Wednesday 26/8 Partly cloudy
36°25°3%⌄
Wind14 mph W
Gusts18 mph
UV index9 – Very high
Precip chance3%
Sunrise06:56
Sunset19:59
Thursday 27/8 Light rain (climatological)
40°27°1.5 mm⌄
Day≈37–43°
Night≈24–30°
Precip≈0.9 in / August
(climatological)Typical range for these dates · 1991–2020
Friday 28/8 Partly cloudy (climatological)
40°27°20%⌄
Day≈37–43°
Night≈24–30°
Precip≈0.9 in / August
(climatological)Typical range for these dates · 1991–2020
Saturday 29/8 Partly cloudy (climatological)
43°29°20%⌄
Day≈40–46°
Night≈26–32°
Precip≈0.9 in / August
(climatological)Typical range for these dates · 1991–2020
Sunday 30/8 Rain (climatological)
40°27°2.2 mm⌄
Day≈37–43°
Night≈24–30°
Precip≈0.9 in / August
(climatological)Typical range for these dates · 1991–2020
Monday 31/8 Partly cloudy (climatological)
37°25°20%⌄
Day≈34–40°
Night≈22–28°
Precip≈0.9 in / August
(climatological)Typical range for these dates · 1991–2020
Tuesday 1/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 2/9 Light rain (climatological)
36°24°1.4 mm⌄
Day≈33–39°
Night≈21–27°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
38°25°20%⌄
Day≈35–41°
Night≈22–28°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
39°26°20%⌄
Day≈36–42°
Night≈23–29°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Light rain (climatological)
39°26°1.7 mm⌄
Day≈36–42°
Night≈23–29°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
38°25°20%⌄
Day≈35–41°
Night≈22–28°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Rain (climatological)
35°23°2.5 mm⌄
Day≈32–38°
Night≈20–26°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
37°24°20%⌄
Day≈34–40°
Night≈21–27°
Precip≈0.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
38°25°2.6 mm⌄
Day≈35–41°
Night≈22–28°
Precip≈0.9 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 McKinney, 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.