Currently: 81 °F. Passing clouds. (Weather station: Key West International Airport, USA). See more current weatherMay 2018 Weather in Key West — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
68
70
72
74
76
78
80
82
84
86
Tue, May 1
Lo:75
12 am
Hi:77
11
Lo:75
6 am
Hi:82
11
Lo:81
12 pm
Hi:84
17
Lo:79
6 pm
Hi:81
14
Wed, May 2
Lo:75
12 am
Hi:79
11
Lo:75
6 am
Hi:82
11
Lo:81
12 pm
Hi:84
16
Lo:73
6 pm
Hi:81
14
Thu, May 3
Lo:73
12 am
Hi:75
10
Lo:75
6 am
Hi:82
14
Lo:82
12 pm
Hi:84
17
Lo:79
6 pm
Hi:81
14
Fri, May 4
Lo:79
12 am
Hi:79
16
Lo:77
6 am
Hi:82
12
Lo:81
12 pm
Hi:84
17
Lo:77
6 pm
Hi:79
10
Sat, May 5
Lo:75
12 am
Hi:75
14
Lo:75
6 am
Hi:81
12
Lo:81
12 pm
Hi:84
8
Lo:77
6 pm
Hi:81
3
Sun, May 6
Lo:75
12 am
Hi:77
6
Lo:79
6 am
Hi:81
11
Lo:81
12 pm
Hi:82
7
Lo:79
6 pm
Hi:81
3
Mon, May 7
Lo:75
12 am
Hi:79
6
Lo:77
6 am
Hi:82
9
Lo:82
12 pm
Hi:84
9
Lo:79
6 pm
Hi:81
9
Tue, May 8
Lo:75
12 am
Hi:79
7
Lo:75
6 am
Hi:84
8
Lo:82
12 pm
Hi:86
10
Lo:73
6 pm
Hi:81
9
Wed, May 9
Lo:75
12 am
Hi:77
7
Lo:75
6 am
Hi:84
10
Lo:82
12 pm
Hi:82
16
Lo:79
6 pm
Hi:81
14
Thu, May 10
Lo:77
12 am
Hi:79
9
Lo:77
6 am
Hi:82
11
Lo:81
12 pm
Hi:84
14
Lo:79
6 pm
Hi:81
15
Fri, May 11
Lo:77
12 am
Hi:79
10
Lo:77
6 am
Hi:81
9
Lo:81
12 pm
Hi:82
14
Lo:79
6 pm
Hi:81
11
Sat, May 12
Lo:77
12 am
Hi:77
7
Lo:72
6 am
Hi:75
4
Lo:75
12 pm
Hi:82
12
Lo:77
6 pm
Hi:81
8
Sun, May 13
Lo:75
12 am
Hi:77
6
Lo:72
6 am
Hi:75
6
Lo:72
12 pm
Hi:77
9
Lo:75
6 pm
Hi:79
11
Mon, May 14
Lo:73
12 am
Hi:79
14
Lo:70
6 am
Hi:79
7
Lo:72
12 pm
Hi:77
9
Lo:75
6 pm
Hi:77
10
Tue, May 15
Lo:77
12 am
Hi:77
12
Lo:79
6 am
Hi:82
11
Lo:81
12 pm
Hi:82
11
Lo:79
6 pm
Hi:81
12
Wed, May 16
Lo:79
12 am
Hi:79
12
Lo:79
6 am
Hi:82
9
Lo:82
12 pm
Hi:82
9
Lo:75
6 pm
Hi:81
9
Thu, May 17
Lo:79
12 am
Hi:79
6
Lo:79
6 am
Hi:81
7
Lo:79
12 pm
Hi:81
10
Lo:77
6 pm
Hi:79
9
Fri, May 18
Lo:77
12 am
Hi:79
9
Lo:77
6 am
Hi:82
7
Lo:81
12 pm
Hi:84
7
Lo:79
6 pm
Hi:81
3
Sat, May 19
Lo:79
12 am
Hi:79
7
Lo:77
6 am
Hi:79
9
Lo:79
12 pm
Hi:82
13
Lo:75
6 pm
Hi:79
15
Sun, May 20
Lo:75
12 am
Hi:77
11
Lo:73
6 am
Hi:81
10
Lo:81
12 pm
Hi:82
16
Lo:79
6 pm
Hi:81
18
Mon, May 21
Lo:79
12 am
Hi:79
14
Lo:79
6 am
Hi:82
14
Lo:73
12 pm
Hi:82
15
Lo:72
6 pm
Hi:75
16
Tue, May 22
Lo:73
12 am
Hi:77
21
Lo:77
6 am
Hi:82
19
Lo:79
12 pm
Hi:82
18
Lo:79
6 pm
Hi:81
18
Wed, May 23
Lo:79
12 am
Hi:79
16
Lo:79
6 am
Hi:82
15
Lo:81
12 pm
Hi:82
11
Lo:79
6 pm
Hi:81
9
Thu, May 24
Lo:79
12 am
Hi:79
6
Lo:79
6 am
Hi:82
8
Lo:81
12 pm
Hi:82
7
Lo:79
6 pm
Hi:81
2
Fri, May 25
Lo:75
12 am
Hi:79
3
Lo:72
6 am
Hi:75
9
Lo:73
12 pm
Hi:79
7
Lo:73
6 pm
Hi:79
16
Sat, May 26
Lo:77
12 am
Hi:79
14
Lo:79
6 am
Hi:79
12
Lo:77
12 pm
Hi:79
21
Lo:75
6 pm
Hi:79
27
Sun, May 27
Lo:77
12 am
Hi:79
25
Lo:79
6 am
Hi:82
22
Lo:81
12 pm
Hi:84
16
Lo:75
6 pm
Hi:81
13
Mon, May 28
Lo:79
12 am
Hi:81
17
Lo:79
6 am
Hi:79
18
Lo:79
12 pm
Hi:79
21
Lo:79
6 pm
Hi:79
16
Tue, May 29
Lo:79
12 am
Hi:79
13
Lo:79
6 am
Hi:81
14
Lo:79
12 pm
Hi:81
12
Lo:77
6 pm
Hi:79
16
Wed, May 30
Lo:79
12 am
Hi:81
18
Lo:79
6 am
Hi:81
14
Lo:81
12 pm
Hi:82
8
Lo:81
6 pm
Hi:82
9
Thu, May 31
Lo:81
12 am
Hi:81
9
Lo:81
6 am
Hi:82
7
Lo:82
12 pm
Hi:84
7
Lo:79
6 pm
Hi:82
6
Tuesday, May 1, 2018, 12:00 am — 6:00 am
77 / 75 °F
Passing clouds.
Humidity: 66%
Barometer: 30.09 "Hg
E
Wind: 11.185 mph
High & Low Weather Summary for May 2018
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 86 °F (May 8, 1:53 pm) | 100% (May 13, 11:57 am) | 30.15 "Hg (May 13, 11:57 am) |
| Low | 69 °F (May 14, 8:39 am) | 48% (May 12, 1:53 pm) | 29.69 "Hg (May 27, 3:53 am) |
| Average | 79 °F | 83% | 29.98 "Hg |
| * Reported May 1 12:53 am — May 31 11:53 pm, Key West. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Key West Weather History for May 1, 2018
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:53 am Tue, May 1 | | 77 °F | Passing clouds. | 16 mph | ↑ | 66% | 30.11 "Hg | 10 mi |
| 1:53 am | | 77 °F | Passing clouds. | 16 mph | ↑ | 64% | 30.10 "Hg | 10 mi |
| 2:53 am |  | 77 °F | Clear. | 12 mph | ↑ | 62% | 30.09 "Hg | 10 mi |
| 3:53 am | | 76 °F | Clear. | 10 mph | ↑ | 67% | 30.08 "Hg | 10 mi |
| 4:53 am | | 76 °F | Passing clouds. | 7 mph | ↑ | 67% | 30.09 "Hg | 10 mi |
| 5:53 am | | 75 °F | Clear. | 6 mph | ↑ | 71% | 30.09 "Hg | 10 mi |
| 6:53 am |  | 75 °F | Passing clouds. | 8 mph | ↑ | 71% | 30.10 "Hg | 10 mi |
| 7:53 am | | 76 °F | Passing clouds. | 9 mph | ↑ | 74% | 30.12 "Hg | 10 mi |
| 8:53 am |  | 78 °F | Sunny. | 9 mph | ↑ | 66% | 30.13 "Hg | 10 mi |
| 9:53 am | | 81 °F | Sunny. | 10 mph | ↑ | 62% | 30.14 "Hg | 10 mi |
| 10:53 am | | 82 °F | Passing clouds. | 13 mph | ↑ | 60% | 30.14 "Hg | 10 mi |
| 11:53 am |  | 82 °F | Partly sunny. | 16 mph | ↑ | 60% | 30.14 "Hg | 10 mi |
| 12:53 pm | | 85 °F | Passing clouds. | 15 mph | ↑ | 57% | 30.14 "Hg | 10 mi |
| 1:53 pm | | 85 °F | Sunny. | 17 mph | ↑ | 59% | 30.13 "Hg | 10 mi |
| 2:53 pm | | 85 °F | Scattered clouds. | 18 mph | ↑ | 61% | 30.12 "Hg | 10 mi |
| 3:53 pm | | 85 °F | Sunny. | 16 mph | ↑ | 59% | 30.10 "Hg | 10 mi |
| 4:53 pm | | 82 °F | Sunny. | 17 mph | ↑ | 67% | 30.09 "Hg | 10 mi |
| 5:53 pm | | 80 °F | Broken clouds. | 17 mph | ↑ | 71% | 30.09 "Hg | 10 mi |
| 6:53 pm | | 80 °F | Sunny. | 15 mph | ↑ | 71% | 30.09 "Hg | 10 mi |
| 7:53 pm | | 79 °F | Passing clouds. | 15 mph | ↑ | 72% | 30.09 "Hg | 10 mi |
| 8:53 pm | | 78 °F | Passing clouds. | 14 mph | ↑ | 74% | 30.11 "Hg | 10 mi |
| 9:53 pm |  | 78 °F | Light rain. Partly cloudy. | 17 mph | ↑ | 74% | 30.12 "Hg | 10 mi |
| 10:53 pm | | 78 °F | Passing clouds. | 14 mph | ↑ | 74% | 30.14 "Hg | 10 mi |
| 11:53 pm | | 78 °F | Clear. | 10 mph | ↑ | 74% | 30.14 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||