Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 16%

08:52

00:54

11 OK
12 OK
13 OK
14 Bad
15 OK
16 Bad
17 Bad
18 OK
19 Good
20 Good
21 OK
22 Good
23 Good
00 Good
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:16, Set: 20:07, Transit: 13:12. Moon - Rise: 08:52, Set: 00:54. Civil Dark: 20:39 - 05:44. Nautical Dark: 21:17 - 05:05. Astro Dark: 22:00 - 04:23

Total Clouds (% Sky Obscured)

29
40
27
49
44
57
54
46
7
14
30
3
10
3
29
86
93
89
100
100
95
100
98
100

Low Clouds (% Sky Obscured)

13
23
27
19
39
57
54
46
6
12
2
0
0
0
0
0
0
20
20
50
15
10
41
57

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
30
3
10
2
4
42
93
89
100
100
95
100
97
99

High Clouds (% Sky Obscured)

3
0
0
0
0
0
0
0
4
3
30
3
4
3
29
84
65
70
63
60
60
60
65
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
2
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
27
12
11
14
10

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
10
10
9
9
8
6
2
5
6
4
4
4
4
4
5
7
8
9
11
12
13

Chance of Frost

Temperature (°C)

-3
-2
-1
-0
1
1
1
1
0
-2
-3
-4
-5
-5
-5
-5
-5
-5
-5
-4
-3
-2
-1
1

Feels Like (°C)

-7
-6
-5
-6
-4
-4
-4
-5
-4
-4
-6
-8
-6
-7
-7
-9
-10
-9
-9
-9
-8
-8
-7
-5

Dew Point (°C)

-17
-17
-17
-17
-16
-16
-16
-16
-15
-13
-12
-12
-11
-11
-12
-12
-13
-14
-14
-14
-13
-12
-11
-10

Relative Humidity (%)

32
30
27
26
26
26
27
27
31
41
48
53
61
61
60
57
55
50
46
46
45
47
44
43

Pressure (mb)

1027
1026
1026
1025
1025
1025
1025
1025
1025
1025
1026
1027
1027
1027
1027
1026
1026
1025
1025
1025
1024
1023
1022
1021

Ozone (du)

453
450
458
457
462
458
445
430
413
403
398
398
399
398
394
392
389
388
387
385
385
383
382
381

Tuesday 21

Waxing Crescent 26%

10:04

01:55

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 OK
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good

Sun - Rise: 06:14, Set: 20:08, Transit: 13:12. Moon - Rise: 10:04, Set: 01:55. Civil Dark: 20:40 - 05:42. Nautical Dark: 21:19 - 05:03. Astro Dark: 22:01 - 04:20

Total Clouds (% Sky Obscured)

100
99
98
96
100
90
99
100
100
86
95
97
51
58
50
24
3
3
6
9
10
4
12
4

Low Clouds (% Sky Obscured)

48
39
68
91
100
77
70
80
79
73
72
48
27
30
38
18
2
2
5
7
8
2
2
0

Medium Clouds (% Sky Obscured)

100
95
79
81
60
47
51
41
12
2
59
65
51
53
4
0
0
0
0
0
0
0
9
0

High Clouds (% Sky Obscured)

3
3
7
3
10
42
78
81
41
82
80
93
23
7
5
0
0
0
0
0
0
3
3
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
4
3
2
4
2
1
2
0
1
11
1
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
15
15
15
15
13
13
11
9
7
5
5
4
3
1
2
4
4
4
5
4
6
7
6

Chance of Frost

Temperature (°C)

2
4
5
6
7
6
6
7
6
5
4
3
3
2
2
2
1
1
1
1
1
3
6
8

Feels Like (°C)

-4
-3
-1
0
1
0
1
2
2
2
1
1
-1
1
1
0
-1
0
-1
-1
-1
1
4
6

Dew Point (°C)

-10
-8
-7
-6
-4
-1
1
2
2
2
2
2
2
1
1
1
1
1
0
0
1
0
1
-0

Relative Humidity (%)

42
41
41
42
47
59
69
70
76
82
88
93
94
94
96
96
96
98
98
98
98
85
71
57

Pressure (mb)

1020
1019
1017
1016
1015
1015
1014
1014
1014
1014
1015
1015
1015
1014
1014
1014
1014
1014
1015
1015
1016
1016
1016
1016

Ozone (du)

377
374
373
370
368
367
368
368
369
369
378
381
379
377
376
374
374
375
375
376
377
377
376
375

Wednesday 22

Waxing Crescent 37%

No Rise

02:41

11 Good
12 OK
13 OK
14 OK
15 Good
16 Good
17 Good
18 Good
19 Good
20 Good
21 OK
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:12, Set: 20:10, Transit: 13:12. Moon - Rise: No Rise, Set: 02:41. Civil Dark: 20:41 - 05:41. Nautical Dark: 21:21 - 05:01. Astro Dark: 22:03 - 04:18

Total Clouds (% Sky Obscured)

4
28
20
23
14
15
11
0
0
9
24
19
36
50
83
78
98
81
100
81
91
86
96
100

Low Clouds (% Sky Obscured)

0
0
0
0
9
15
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
17
26

Medium Clouds (% Sky Obscured)

0
2
18
22
9
2
0
0
0
2
24
18
36
19
28
21
19
24
88
55
91
77
91
98

High Clouds (% Sky Obscured)

3
28
3
3
3
4
11
0
0
7
6
6
6
31
71
63
97
55
100
31
8
18
60
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
12
17
20

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
7
7
7
5
4
4
3
2
3
3
3
4
3
3
3
3
3
4
5

Chance of Frost

Temperature (°C)

10
11
12
13
14
14
14
13
12
9
7
6
5
5
5
4
4
3
2
3
3
4
6
7

Feels Like (°C)

7
9
9
11
12
12
11
11
11
8
6
5
5
4
4
2
2
0
1
-0
1
2
3
4

Dew Point (°C)

-1
-1
-1
-1
0
1
2
3
5
5
4
4
4
3
3
2
2
1
1
1
1
0
-1
-2

Relative Humidity (%)

47
42
41
39
40
41
43
50
63
77
84
86
88
86
85
88
88
88
93
89
88
73
64
55

Pressure (mb)

1016
1016
1015
1015
1015
1014
1014
1015
1015
1016
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

376
375
372
369
368
367
367
367
365
363
361
361
361
361
361
359
358
358
357
358
359
359
359
358

Thursday 23

First Quarter 49%

11:22

03:15

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:11, Set: 20:11, Transit: 13:12. Moon - Rise: 11:22, Set: 03:15. Civil Dark: 20:43 - 05:39. Nautical Dark: 21:22 - 04:59. Astro Dark: 22:05 - 04:16

Total Clouds (% Sky Obscured)

100
100
100
98
96
95
96
98
100
99
97
96
97
99
100
99
99
98
98
98
97
86
79
69

Low Clouds (% Sky Obscured)

17
9
2
3
3
2
27
51
74
73
74
75
82
88
94
91
90
87
87
82
75
67
58
50

Medium Clouds (% Sky Obscured)

92
90
85
98
96
95
96
98
100
97
95
93
95
98
100
93
98
97
95
83
62
53
40
31

High Clouds (% Sky Obscured)

93
83
74
73
57
50
63
82
100
77
55
27
21
21
19
13
7
9
9
27
26
6
2
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
16
10
14
14
11
13
14
15
14
12
9
8
17
4
24
32
38
34
27
19
21
21
18

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
6
6
6
6
6
5
5
4
4
5
5
6
5
5
5
6
6
6
7
7
7
7

Chance of Frost

Temperature (°C)

8
9
10
11
11
11
11
10
9
8
7
6
6
5
5
5
5
4
4
4
3
3
5
6

Feels Like (°C)

4
6
7
8
8
8
8
7
6
5
4
3
3
2
2
2
1
1
0
0
-1
-1
2
3

Dew Point (°C)

-2
-1
0
1
2
3
3
3
2
2
2
2
1
1
1
1
1
1
1
1
1
-1
-3
-5

Relative Humidity (%)

51
49
48
48
52
55
56
60
63
68
71
71
71
74
76
73
76
77
82
85
85
72
58
48

Pressure (mb)

1018
1017
1016
1016
1016
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015

Ozone (du)

357
356
354
354
355
357
358
358
358
358
358
358
358
358
358
359
360
362
364
365
367
368
369
371

Friday 24

Waxing Gibbous 60%

12:40

03:41

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:09, Set: 20:12, Transit: 13:12. Moon - Rise: 12:40, Set: 03:41. Civil Dark: 20:44 - 05:37. Nautical Dark: 21:24 - 04:57. Astro Dark: 22:07 - 04:13

Total Clouds (% Sky Obscured)

75
81
82
78
71
71
70
71
98
98
82
98
83
88
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

60
69
74
60
56
56
56
51
44
48
58
62
66
70
74
70
80
87
88
89
95
95
95
100

Medium Clouds (% Sky Obscured)

33
34
33
34
38
38
35
31
28
27
28
30
31
35
40
55
55
60
69
79
88
71
53
35

High Clouds (% Sky Obscured)

5
10
15
31
49
65
70
71
98
98
82
98
83
88
100
100
100
100
100
100
100
70
37
5

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

16
12
4
6
7
3
9
8
2
17
22
21
20
19
17
95
95
95
95
95
77
64
48
17

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1.4
1.8
1.2
0.8
0.5
0.3
0
0

Wind Speed/Direction (mph)

8
8
8
7
7
7
7
8
7
6
6
6
7
7
7
7
7
6
6
6
6
6
7
7

Chance of Frost

Temperature (°C)

7
8
9
10
10
11
11
10
9
7
5
5
4
4
4
4
3
3
3
3
3
4
5
5

Feels Like (°C)

4
5
7
9
9
9
9
8
7
3
2
3
0
2
1
-0
-1
0
0
-1
-1
-2
0
-1

Dew Point (°C)

-5
-6
-6
-6
-7
-6
-6
-6
-3
-1
-1
-1
-1
-1
-0
0
-0
1
1
1
-0
-1
-2
-3

Relative Humidity (%)

42
37
34
31
30
30
31
33
43
58
65
66
69
72
75
77
80
86
91
83
77
71
62
56

Pressure (mb)

1015
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013
1013
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

372
371
371
369
368
367
367
368
368
370
371
371
370
368
368
368
368
368
369
369
369
369
370
372

Saturday 25

Waxing Gibbous 71%

13:56

04:02

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 OK

Sun - Rise: 06:08, Set: 20:14, Transit: 13:11. Moon - Rise: 13:56, Set: 04:02. Civil Dark: 20:46 - 05:35. Nautical Dark: 21:25 - 04:55. Astro Dark: 22:09 - 04:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
95
93
92
97
97
100
91
88
91
90
86
81
75
68
61
51
39
24

Low Clouds (% Sky Obscured)

100
100
95
95
95
90
78
63
57
47
32
25
16
9
1
1
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

38
49
58
61
56
55
56
60
60
43
28
10
14
23
35
43
51
56
49
42
35
27
20
13

High Clouds (% Sky Obscured)

0
5
10
10
15
15
10
5
0
33
67
100
91
88
90
67
29
14
12
21
23
20
13
8

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

16
11
0
1
2
2
2
3
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
6
6
5
5
5
5
5
4
4
4
3
2
2
2
2
2
2
2
3
3
4
4
5

Chance of Frost

Temperature (°C)

6
7
8
9
9
10
10
9
8
7
6
5
4
4
3
2
2
2
2
3
4
5
7
9

Feels Like (°C)

-1
-1
-1
-1
6
6
6
7
7
8
3
4
4
3
3
3
1
1
1
1
1
1
5
5

Dew Point (°C)

-3
-4
-4
-5
-4
-4
-4
-2
-1
1
0
-1
-1
-1
-1
-1
-0
0
1
1
2
2
2
2

Relative Humidity (%)

51
46
42
38
38
38
37
45
52
64
65
67
68
72
76
80
85
89
93
89
86
82
71
63

Pressure (mb)

1012
1012
1011
1011
1012
1012
1012
1013
1013
1014
1015
1015
1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019

Ozone (du)

373
374
374
375
374
373
372
371
371
370
370
370
369
372
374
376
376
376
376
375
374
374
374
374

Sunday 26

Waxing Gibbous 80%

15:09

04:20

11 OK
12 Bad
13 Bad
14 OK
15 OK
16 Good
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:06, Set: 20:15, Transit: 13:11. Moon - Rise: 15:09, Set: 04:20. Civil Dark: 20:47 - 05:34. Nautical Dark: 21:27 - 04:53. Astro Dark: 22:11 - 04:09

Total Clouds (% Sky Obscured)

40
55
70
48
26
4
20
23
24
31
24
26
26
55
70
70
70
65
65
65
65

Low Clouds (% Sky Obscured)

0
1
1
2
2
2
3
3
3
2
1
0
2
3
4
8
14
24
27
29
50

Medium Clouds (% Sky Obscured)

9
5
2
1
0
0
0
0
0
1
1
2
5
7
10
14
19
13
19
29
30

High Clouds (% Sky Obscured)

26
43
61
37
20
3
15
23
24
29
1
2
1
1
0
0
0
0
15
20
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
7
11

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
6
7
6
6
5
5
5
5
5
5
5
6
6
7
8
9

Chance of Frost

Temperature (°C)

11
12
13
14
14
14
15
13
11
9
8
7
6
6
5
4
4
4
4
5
6

Feels Like (°C)

6
7
7
8
14
14
13
13
14
14
8
8
7
8
7
7
4
4
4
4
3

Dew Point (°C)

3
2
2
2
2
2
1
2
3
4
4
4
4
4
4
3
3
2
3
2
2

Relative Humidity (%)

56
51
47
43
41
41
40
47
58
69
73
79
83
86
90
91
91
89
91
83
78

Pressure (mb)

1018
1018
1018
1017
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1018
1018
1018
1017
1017
1016
1016

Ozone (du)

374
373
373
373
372
372
372
373
375
376
377
378
379
380
381
382
384
385
387
387
387

Forecast for Algonquin Park, Canada (45.58,-78.51)

Generated: 20/04/26 11:48:07. Forecast: 20/04/26 to 26/04/26. Timezone: UTC-4.00