Currently: 47 °F. Clear. (Weather station: Missoula International Airport, USA). See more current weatherMay 2018 Weather in Missoula — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
34
38
42
46
50
54
58
62
66
70
74
78
82
Tue, May 1
Lo:39
12 am
Hi:43
1
Lo:41
6 am
Hi:48
2
Lo:48
12 pm
Hi:55
9
Lo:41
6 pm
Hi:50
7
Wed, May 2
Lo:36
12 am
Hi:39
2
Lo:37
6 am
Hi:52
3
Lo:55
12 pm
Hi:57
6
Lo:46
6 pm
Hi:57
8
Thu, May 3
Lo:39
12 am
Hi:45
2
Lo:37
6 am
Hi:54
1
Lo:63
12 pm
Hi:70
3
Lo:52
6 pm
Hi:70
6
Fri, May 4
Lo:41
12 am
Hi:48
1
Lo:39
6 am
Hi:63
1
Lo:64
12 pm
Hi:75
8
Lo:57
6 pm
Hi:72
7
Sat, May 5
Lo:48
12 am
Hi:57
4
Lo:50
6 am
Hi:63
4
Lo:64
12 pm
Hi:70
11
Lo:50
6 pm
Hi:70
3
Sun, May 6
Lo:48
12 am
Hi:52
1
Lo:46
6 am
Hi:66
2
Lo:72
12 pm
Hi:79
5
Lo:54
6 pm
Hi:61
11
Mon, May 7
Lo:48
12 am
Hi:54
3
Lo:50
6 am
Hi:55
1
Lo:55
12 pm
Hi:61
7
Lo:52
6 pm
Hi:61
6
Tue, May 8
Lo:45
12 am
Hi:48
0
Lo:45
6 am
Hi:63
0
Lo:64
12 pm
Hi:72
4
Lo:63
6 pm
Hi:72
7
Wed, May 9
Lo:48
12 am
Hi:50
3
Lo:50
6 am
Hi:61
1
Lo:63
12 pm
Hi:70
9
Lo:54
6 pm
Hi:63
8
Thu, May 10
Lo:43
12 am
Hi:52
2
Lo:43
6 am
Hi:55
2
Lo:54
12 pm
Hi:61
7
Lo:46
6 pm
Hi:54
7
Fri, May 11
Lo:45
12 am
Hi:46
2
Lo:43
6 am
Hi:46
8
Lo:46
12 pm
Hi:54
10
Lo:48
6 pm
Hi:54
8
Sat, May 12
Lo:37
12 am
Hi:48
4
Lo:37
6 am
Hi:57
2
Lo:59
12 pm
Hi:66
8
Lo:48
6 pm
Hi:66
7
Sun, May 13
Lo:39
12 am
Hi:46
1
Lo:39
6 am
Hi:63
1
Lo:64
12 pm
Hi:70
9
Lo:52
6 pm
Hi:68
8
Mon, May 14
Lo:43
12 am
Hi:50
1
Lo:43
6 am
Hi:63
2
Lo:66
12 pm
Hi:77
3
Lo:54
6 pm
Hi:75
4
Tue, May 15
Lo:43
12 am
Hi:52
1
Lo:45
6 am
Hi:66
1
Lo:70
12 pm
Hi:81
2
Lo:55
6 pm
Hi:81
4
Wed, May 16
Lo:46
12 am
Hi:54
4
Lo:46
6 am
Hi:64
1
Lo:61
12 pm
Hi:73
12
Lo:52
6 pm
Hi:57
8
Thu, May 17
Lo:50
12 am
Hi:52
3
Lo:50
6 am
Hi:57
1
Lo:59
12 pm
Hi:63
8
Lo:55
6 pm
Hi:61
7
Fri, May 18
Lo:52
12 am
Hi:55
9
Lo:54
6 am
Hi:54
11
Lo:54
12 pm
Hi:57
6
Lo:52
6 pm
Hi:57
10
Sat, May 19
Lo:50
12 am
Hi:52
12
Lo:48
6 am
Hi:57
16
Lo:57
12 pm
Hi:64
11
Lo:55
6 pm
Hi:64
9
Sun, May 20
Lo:43
12 am
Hi:48
3
Lo:45
6 am
Hi:64
2
Lo:64
12 pm
Hi:73
10
Lo:55
6 pm
Hi:66
9
Mon, May 21
Lo:52
12 am
Hi:55
4
Lo:54
6 am
Hi:61
1
Lo:63
12 pm
Hi:70
4
Lo:55
6 pm
Hi:72
7
Tue, May 22
Lo:48
12 am
Hi:55
3
Lo:50
6 am
Hi:63
2
Lo:68
12 pm
Hi:77
14
Lo:61
6 pm
Hi:75
9
Wed, May 23
Lo:52
12 am
Hi:55
1
Lo:52
6 am
Hi:66
4
Lo:68
12 pm
Hi:79
12
Lo:57
6 pm
Hi:72
7
Thu, May 24
Lo:54
12 am
Hi:57
1
Lo:54
6 am
Hi:66
1
Lo:72
12 pm
Hi:79
9
Lo:57
6 pm
Hi:77
3
Fri, May 25
Lo:50
12 am
Hi:55
1
Lo:54
6 am
Hi:72
2
Lo:75
12 pm
Hi:81
4
Lo:55
6 pm
Hi:75
9
Sat, May 26
Lo:52
12 am
Hi:57
4
Lo:52
6 am
Hi:66
4
Lo:70
12 pm
Hi:73
10
Lo:57
6 pm
Hi:66
8
Sun, May 27
Lo:50
12 am
Hi:55
4
Lo:52
6 am
Hi:66
1
Lo:70
12 pm
Hi:77
9
Lo:59
6 pm
Hi:75
8
Mon, May 28
Lo:50
12 am
Hi:54
1
Lo:54
6 am
Hi:68
2
Lo:73
12 pm
Hi:81
9
Lo:59
6 pm
Hi:79
7
Tue, May 29
Lo:50
12 am
Hi:57
3
Lo:50
6 am
Hi:70
4
Lo:73
12 pm
Hi:81
3
Lo:61
6 pm
Hi:77
9
Wed, May 30
Lo:50
12 am
Hi:61
10
Lo:50
6 am
Hi:57
4
Lo:61
12 pm
Hi:66
12
Lo:54
6 pm
Hi:64
4
Thu, May 31
Lo:54
12 am
Hi:55
3
Lo:52
6 am
Hi:64
5
Lo:52
12 pm
Hi:63
7
Lo:54
6 pm
Hi:57
7
Tuesday, May 1, 2018, 12:00 am — 6:00 am
43 / 39 °F
Overcast.
Humidity: 90%
Barometer: 29.91 "Hg
NW
Wind: 0.621 mph
High & Low Weather Summary for May 2018
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 81 °F (May 15, 5:53 pm) | 97% (May 10, 4:34 am) | 30.22 "Hg (May 10, 4:34 am) |
| Low | 36 °F (May 2, 5:53 am) | 20% (May 15, 5:53 pm) | 29.66 "Hg (May 31, 12:53 pm) |
| Average | 57 °F | 66% | 29.96 "Hg |
| * Reported May 1 12:53 am — May 31 11:53 pm, Missoula. 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
Missoula 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 |  | 43 °F | Mostly cloudy. | 3 mph | ↑ | 89% | 29.93 "Hg | 10 mi |
| 1:53 am | | 42 °F | Mostly cloudy. | No wind | ↑ | 89% | 29.92 "Hg | 10 mi |
| 2:53 am |  | 39 °F | Passing clouds. | No wind | ↑ | 93% | 29.91 "Hg | 10 mi |
| 3:53 am | | 40 °F | Mostly cloudy. | No wind | ↑ | 89% | 29.90 "Hg | 10 mi |
| 4:53 am | | 41 °F | Overcast. | No wind | ↑ | 86% | 29.89 "Hg | 10 mi |
| 5:53 am | | 41 °F | Overcast. | No wind | ↑ | 93% | 29.89 "Hg | 10 mi |
| 6:53 am |  | 41 °F | Mostly cloudy. | 3 mph | ↑ | 93% | 29.89 "Hg | 10 mi |
| 7:53 am | | 41 °F | More clouds than sun. | 5 mph | ↑ | 93% | 29.89 "Hg | 10 mi |
| 8:53 am | | 42 °F | Mostly cloudy. | No wind | ↑ | 89% | 29.90 "Hg | 10 mi |
| 9:53 am | | 44 °F | Mostly cloudy. | No wind | ↑ | 82% | 29.90 "Hg | 10 mi |
| 10:53 am |  | 46 °F | Cloudy. | No wind | ↑ | 79% | 29.90 "Hg | 10 mi |
| 11:53 am | | 49 °F | Overcast. | 3 mph | ↑ | 71% | 29.91 "Hg | 10 mi |
| 12:20 pm |  | 49 °F | Light rain. Mostly cloudy. | 8 mph | ↑ | 69% | 29.89 "Hg | 10 mi |
| 12:32 pm | | 49 °F | Cloudy. | 10 mph | ↑ | 69% | 29.88 "Hg | 10 mi |
| 12:53 pm | | 50 °F | Overcast. | No wind | ↑ | 59% | 29.90 "Hg | 10 mi |
| 1:42 pm | | 52 °F | Overcast. | No wind | ↑ | 57% | 29.87 "Hg | 10 mi |
| 1:53 pm | | 53 °F | Overcast. | No wind | ↑ | 52% | 29.88 "Hg | 10 mi |
| 2:53 pm | | 56 °F | Partly sunny. | 14 mph | ↑ | 47% | 29.89 "Hg | 10 mi |
| 3:53 pm | | 51 °F | Mostly cloudy. | 22 mph | ↑ | 59% | 29.91 "Hg | 10 mi |
| 4:53 pm |  | 51 °F | Scattered clouds. | 13 mph | ↑ | 61% | 29.92 "Hg | 10 mi |
| 5:53 pm | | 55 °F | Scattered clouds. | 10 mph | ↑ | 51% | 29.92 "Hg | 10 mi |
| 6:53 pm | | 50 °F | Mostly cloudy. | 9 mph | ↑ | 63% | 29.94 "Hg | 10 mi |
| 7:53 pm | | 50 °F | Passing clouds. | 12 mph | ↑ | 63% | 29.96 "Hg | 10 mi |
| 8:53 pm | | 47 °F | Passing clouds. | 8 mph | ↑ | 74% | 29.98 "Hg | 10 mi |
| 9:53 pm | | 46 °F | Passing clouds. | 6 mph | ↑ | 71% | 30.00 "Hg | 10 mi |
| 10:53 pm | | 42 °F | Passing clouds. | 5 mph | ↑ | 85% | 30.02 "Hg | 10 mi |
| 11:53 pm | | 41 °F | Passing clouds. | 5 mph | ↑ | 86% | 30.03 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||