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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
McKinney, TX
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September
Average Temperature
High
31°
Feels 33
Low
20°
Feels 20
Average Precipitation
6 Days
Rain amount
53.6mm
Snow amount
0cm
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
36°
18
36°
19
36°
20
36°
21
36°
22
35°
23
36°
24
36°
25
36°
26
35°
27
35°
28
36°
29
37°
30
37°
Forecast
Thursday, September 17, 2026
Day
36°
Feels 39
Wind
14 km/h SE
Gust
21 km/h
Humidity
39%
P.O.P
40%
Rain
<1 mm
Night
24°
Feels 24
Wind
14 km/h SE
Gust
20 km/h
Humidity
68%
P.O.P
20%
Historical Averages
Sep 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.