Past Weather in Isle Royale — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
27
32
37
42
47
52
57
62
67
72
77
82
Thu, May 8
Lo:36
6 am
Hi:41
12
Lo:45
12 pm
Hi:48
11
Lo:28
6 pm
Hi:46
6
Fri, May 9
Lo:28
12 am
Hi:32
2
Lo:28
6 am
Hi:61
7
Lo:66
12 pm
Hi:79
11
Lo:55
6 pm
Hi:72
7
Sat, May 10
Lo:41
12 am
Hi:59
20
Lo:41
6 am
Hi:45
21
Lo:45
12 pm
Hi:46
19
Lo:30
6 pm
Hi:45
6
Sun, May 11
Lo:28
12 am
Hi:36
3
Lo:30
6 am
Hi:57
12
Lo:63
12 pm
Hi:70
23
Lo:61
6 pm
Hi:72
16
Mon, May 12
Lo:50
12 am
Hi:61
9
Lo:50
6 am
Hi:81
11
Lo:81
12 pm
Hi:84
18
Lo:59
6 pm
Hi:77
11
Tue, May 13
Lo:46
12 am
Hi:59
8
Lo:46
6 am
Hi:77
6
Lo:75
12 pm
Hi:79
16
Lo:63
6 pm
Hi:75
9
Wed, May 14
Lo:57
12 am
Hi:63
4
Lo:57
6 am
Hi:64
5
Lo:64
12 pm
Hi:72
9
Lo:61
6 pm
Hi:68
10
Thu, May 15
Lo:59
12 am
Hi:61
7
Lo:59
6 am
Hi:68
6
Lo:72
12 pm
Hi:77
20
Lo:63
6 pm
Hi:75
12
Fri, May 16
Lo:54
12 am
Hi:63
11
Lo:52
6 am
Hi:70
15
Lo:59
12 pm
Hi:75
22
Lo:54
6 pm
Hi:63
14
Sat, May 17
Lo:52
12 am
Hi:55
4
Lo:50
6 am
Hi:54
11
Lo:48
12 pm
Hi:57
16
Lo:39
6 pm
Hi:45
16
Sun, May 18
Lo:36
12 am
Hi:39
16
Lo:36
6 am
Hi:36
15
Lo:34
12 pm
Hi:36
16
Lo:32
6 pm
Hi:34
13
Mon, May 19
Lo:32
12 am
Hi:34
12
Lo:32
6 am
Hi:39
19
Lo:39
12 pm
Hi:41
17
Lo:34
6 pm
Hi:39
11
Tue, May 20
Lo:36
12 am
Hi:39
9
Lo:36
6 am
Hi:50
9
Lo:48
12 pm
Hi:50
14
Lo:43
6 pm
Hi:50
7
Wed, May 21
Lo:41
12 am
Hi:48
9
Lo:41
6 am
Hi:48
13
Lo:48
12 pm
Hi:52
17
Lo:41
6 pm
Hi:52
11
Thu, May 22
Lo:37
12 am
Hi:41
9
Lo:39
6 am
Hi:43
16
Lo:41
12 pm
Hi:46
22
Lo:41
6 pm
Hi:46
14
Fri, May 23
Lo:39
12 am
Hi:43
14
Lo:39
6 am
Hi:39
17
Isle Royale Temperature Yesterday
Maximum temperature yesterday: 46 °F (at 3:47 pm)
Minimum temperature yesterday: 37 °F (at 3:38 am)
Average temperature yesterday: 42 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 84 °F (May 12, 1:46 pm) | 100% (May 14, 10:58 pm) | 30.38 "Hg (May 14, 10:58 pm) |
| Low | 28 °F (May 8, 11:18 pm) | 15% (May 9, 4:47 pm) | 29.28 "Hg (May 16, 4:47 pm) |
| Average | 49 °F | 71% | 29.93 "Hg |
| * Reported May 8 9:05 am — May 23 9:46 am, Isle Royale. 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
Isle Royale Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 9:46 am Fri, May 23 |  | 39 °F | Light rain. Fog. | 18 mph | ↑ | 100% | 30.05 "Hg | 3 mi |
| 8:46 am |  | 39 °F | Fog. | 16 mph | ↑ | 93% | 30.04 "Hg | 3 mi |
| 7:46 am |  | 39 °F | Overcast. | 15 mph | ↑ | 93% | 30.02 "Hg | 10 mi |
| 6:46 am | | 39 °F | Low clouds. | 17 mph | ↑ | 93% | 30.00 "Hg | 10 mi |
| 3:38 am |  | 39 °F | Drizzle. Fog. | 13 mph | ↑ | 100% | 30.00 "Hg | 3 mi |
| 2:58 am | | 39 °F | Light rain. Fog. | 14 mph | ↑ | 100% | 30.00 "Hg | 4 mi |
| 2:38 am | | 39 °F | Light rain. Fog. | 16 mph | ↑ | 100% | 29.99 "Hg | 1 mi |
| 2:18 am | | 39 °F | Light rain. Fog. | 16 mph | ↑ | 100% | 30.00 "Hg | 2 mi |
| 1:58 am | | 39 °F | Light rain. Fog. | 14 mph | ↑ | 100% | 30.00 "Hg | 2 mi |
| 1:38 am | | 39 °F | Light rain. Fog. | 15 mph | ↑ | 100% | 30.01 "Hg | 2 mi |
| 1:18 am | | 41 °F | Light rain. Fog. | 13 mph | ↑ | 93% | 30.01 "Hg | 2 mi |
| 12:58 am | | 41 °F | Light rain. Fog. | 15 mph | ↑ | 93% | 30.01 "Hg | 5 mi |
| 12:38 am | | 41 °F | Light rain. Fog. | 13 mph | ↑ | 93% | 30.02 "Hg | 3 mi |
| 11:58 pm Thu, May 22 |  | 43 °F | Mostly cloudy. | 16 mph | ↑ | 87% | 30.02 "Hg | 10 mi |
| 11:38 pm | | 43 °F | Mostly cloudy. | 14 mph | ↑ | 87% | 30.02 "Hg | 10 mi |
| 11:18 pm | | 41 °F | Mostly cloudy. | 10 mph | ↑ | 93% | 30.02 "Hg | 10 mi |
| 10:58 pm | | 41 °F | Drizzle. Fog. | 12 mph | ↑ | 93% | 30.03 "Hg | 3 mi |
| 10:38 pm | | 43 °F | Drizzle. Mostly cloudy. | 13 mph | ↑ | 87% | 30.02 "Hg | 9 mi |
| 10:18 pm | | 43 °F | Drizzle. Overcast. | 12 mph | ↑ | 81% | 30.02 "Hg | 10 mi |
| 9:47 pm | | 43 °F | Light rain. Mostly cloudy. | 14 mph | ↑ | 81% | 30.02 "Hg | 10 mi |
| 8:47 pm | | 45 °F | Light rain. Partly sunny. | 14 mph | ↑ | 76% | 30.03 "Hg | 10 mi |
| 7:47 pm | | 46 °F | Cloudy. | 15 mph | ↑ | 66% | 30.03 "Hg | 10 mi |
| 6:47 pm |  | 46 °F | Mostly cloudy. | 22 mph | ↑ | 66% | 30.02 "Hg | 10 mi |
| 5:47 pm | | 46 °F | Partly sunny. | 18 mph | ↑ | 66% | 30.01 "Hg | 10 mi |
| 4:47 pm | | 46 °F | Mostly cloudy. | 23 mph | ↑ | 66% | 30.00 "Hg | 10 mi |
| 3:47 pm | | 46 °F | Partly sunny. | 21 mph | ↑ | 66% | 29.99 "Hg | 10 mi |
| 2:47 pm | | 45 °F | Partly sunny. | 25 mph | ↑ | 66% | 29.99 "Hg | 10 mi |
| 1:46 pm | | 43 °F | Mostly cloudy. | 23 mph | ↑ | 71% | 30.00 "Hg | 10 mi |
| 12:46 pm | | 41 °F | Overcast. | 18 mph | ↑ | 87% | 30.01 "Hg | 10 mi |
| 11:46 am | | 41 °F | Mostly cloudy. | 21 mph | ↑ | 81% | 30.00 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||