Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 16%

08:34

00:31

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

Sun - Rise: 05:57, Set: 19:46, Transit: 12:53. Moon - Rise: 08:34, Set: 00:31. Civil Dark: 20:18 - 05:26. Nautical Dark: 20:56 - 04:47. Astro Dark: 21:37 - 04:06

Total Clouds (% Sky Obscured)

96
93
87
100
84
100
72
68
8
5
2
2
2
2
3
0
4
4
4
29
56
51
100
100

Low Clouds (% Sky Obscured)

74
72
67
51
25
25
46
48
6
5
1
1
1
1
2
0
0
0
0
0
0
0
0
9

Medium Clouds (% Sky Obscured)

32
68
86
86
63
90
34
15
0
0
0
0
0
0
0
0
0
0
0
29
35
51
100
100

High Clouds (% Sky Obscured)

2
2
3
3
3
3
1
0
1
0
0
0
0
0
0
0
2
3
2
6
4
1
0
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
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
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)

11
11
12
12
11
11
10
10
8
5
5
5
4
4
4
3
3
2
2
3
3
4
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-9
-9
-9
-10
-10
-11
-11
-10
-8
-8
-9
-9
-10
-10
-10
-10
-9
-9
-9
-9
-9
-9
-8
-10

Relative Humidity (%)

46
43
40
38
36
34
35
38
46
54
57
57
55
55
57
58
63
64
64
64
58
50
45
36

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1028
1027
1027

Ozone (du)

436
449
461
459
452
448
449
449
446
444
450
458
456
454
444
435
427
419
410
407
405
402
403
402

Tuesday 21

Waxing Crescent 26%

09:46

01:32

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: 05:55, Set: 19:48, Transit: 12:52. Moon - Rise: 09:46, Set: 01:32. Civil Dark: 20:19 - 05:24. Nautical Dark: 20:57 - 04:45. Astro Dark: 21:39 - 04:03

Total Clouds (% Sky Obscured)

98
89
78
89
92
92
93
96
100
100
100
100
98
100
95
100
100
99
99
100
99
98
76
100

Low Clouds (% Sky Obscured)

32
30
39
29
25
35
35
40
55
58
85
89
70
65
67
47
71
67
69
77
84
90
56
50

Medium Clouds (% Sky Obscured)

94
84
56
61
73
69
72
93
99
93
100
100
45
90
36
44
45
46
50
55
41
28
45
40

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
4
37
71
98
51
3
3
5
7
50
2
91
100
7
1
19
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
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
3
21
25
34
28
32
35
30
27
26
21
17
5
5
2
0
1
1

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

Chance of Frost

Temperature (°C)

5
6
7
8
9
9
9
8
6
5
5
4
4
4
4
4
4
4
4
4
5
6
7
9

Feels Like (°C)

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

Dew Point (°C)

-10
-10
-9
-8
-7
-7
-5
-2
1
2
2
2
2
2
2
2
2
2
3
3
4
5
5
5

Relative Humidity (%)

33
31
30
31
32
33
37
49
69
78
82
85
86
88
88
85
86
89
91
94
94
93
88
77

Pressure (mb)

1026
1025
1024
1023
1022
1021
1020
1020
1020
1020
1020
1019
1019
1018
1017
1016
1016
1015
1015
1015
1016
1016
1016
1015

Ozone (du)

402
403
401
394
390
383
380
378
379
378
378
381
386
386
387
388
387
387
392
397
401
401
402
405

Wednesday 22

Waxing Crescent 37%

11:03

02:19

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 OK
06 Bad
07 OK
08 OK
09 OK
10 OK

Sun - Rise: 05:54, Set: 19:49, Transit: 12:52. Moon - Rise: 11:03, Set: 02:19. Civil Dark: 20:20 - 05:22. Nautical Dark: 20:59 - 04:43. Astro Dark: 21:41 - 04:01

Total Clouds (% Sky Obscured)

100
100
99
96
96
93
79
88
97
89
59
77
83
79
95
95
100
82
48
40
35
37
33
30

Low Clouds (% Sky Obscured)

70
76
60
59
87
77
56
40
42
48
7
8
52
38
33
24
44
8
3
2
2
2
2
2

Medium Clouds (% Sky Obscured)

40
40
37
34
15
25
3
32
38
30
15
42
60
50
81
83
41
22
40
40
35
37
33
30

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
46
16
4
26
35
20
25
54
56
70
80
4
0
0
1
4
6

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 (%)

1
2
2
10
7
5
3
12
0
0
0
0
0
0
0
0
0
5
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)

5
5
3
3
3
5
5
4
4
4
2
2
4
4
4
5
5
4
4
5
6
8
8
9

Chance of Frost

Temperature (°C)

10
11
11
12
13
13
12
12
11
8
8
7
5
4
3
3
3
4
4
3
4
6
8
10

Feels Like (°C)

8
9
10
10
10
9
10
10
8
6
6
5
2
1
-0
-1
-1
1
1
1
3
4
5
7

Dew Point (°C)

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

Relative Humidity (%)

74
75
75
72
67
67
73
76
78
87
88
90
93
93
86
85
86
88
85
88
85
72
64
59

Pressure (mb)

1015
1015
1015
1015
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

406
407
405
403
403
402
403
402
404
404
401
399
397
397
397
398
400
399
399
399
399
398
398
399

Thursday 23

First Quarter 49%

11:03

02:53

11 OK
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 OK
01 OK
02 OK
03 Good
04 Good
05 OK
06 OK
07 OK
08 Bad
09 Bad
10 Bad

Sun - Rise: 05:52, Set: 19:50, Transit: 12:52. Moon - Rise: 11:03, Set: 02:53. Civil Dark: 20:22 - 05:21. Nautical Dark: 21:00 - 04:42. Astro Dark: 21:43 - 03:59

Total Clouds (% Sky Obscured)

34
54
97
93
88
84
84
84
83
85
87
75
91
31
30
20
14
12
15
21
28
55
98
100

Low Clouds (% Sky Obscured)

2
10
35
41
55
67
67
63
57
67
83
75
12
7
8
8
6
6
6
4
4
27
72
77

Medium Clouds (% Sky Obscured)

34
43
47
41
32
21
23
29
31
21
10
2
2
1
0
9
14
12
15
21
28
45
40
50

High Clouds (% Sky Obscured)

20
40
65
54
40
27
29
31
32
27
21
15
43
31
30
20
14
12
15
21
28
55
95
95

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
6

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
1
0
1
0
0
0
1
3

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
11
12
13
12
11
11
8
7
4
4
3
4
4
4
4
4
4
4
5
5
6
6
7

Chance of Frost

Temperature (°C)

11
11
12
13
13
13
13
11
9
7
6
5
3
3
2
1
1
0
-0
0
1
3
4
5

Feels Like (°C)

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

Dew Point (°C)

1
1
1
0
-0
0
1
2
2
1
1
-0
-1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-2

Relative Humidity (%)

51
48
45
42
40
41
43
51
59
64
68
70
73
77
80
80
84
84
87
87
80
69
66
61

Pressure (mb)

1016
1015
1015
1014
1014
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

399
401
400
398
396
395
395
395
393
394
396
399
400
406
412
415
420
420
422
426
425
416
407
400

Friday 24

Waxing Gibbous 60%

12:21

03:20

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

Sun - Rise: 05:51, Set: 19:51, Transit: 12:52. Moon - Rise: 12:21, Set: 03:20. Civil Dark: 20:23 - 05:19. Nautical Dark: 21:02 - 04:40. Astro Dark: 21:45 - 03:57

Total Clouds (% Sky Obscured)

100
100
100
98
98
96
92
78
12
10
8
5
0
0
0
37
29
30
25
25
35
46
58
80

Low Clouds (% Sky Obscured)

74
71
61
60
55
54
49
41
12
10
8
0
0
0
0
0
0
0
0
0
0
11
28
42

Medium Clouds (% Sky Obscured)

55
50
40
36
24
18
12
5
0
0
0
0
0
0
0
25
24
23
25
25
35
46
58
65

High Clouds (% Sky Obscured)

95
100
95
63
30
0
0
0
0
0
0
0
0
0
0
37
29
30
25
15
5
29
55
80

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 (%)

12
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
14
19
21

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)

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

Chance of Frost

Temperature (°C)

6
7
8
10
10
10
10
10
8
6
4
3
2
2
1
1
2
2
2
3
4
5
6
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
55
46
40
39
40
40
49
57
66
69
72
74
77
78
78
80
81
80
74
71
65
60
54

Pressure (mb)

1015
1015
1014
1014
1014
1013
1013
1013
1014
1014
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013

Ozone (du)

391
387
383
380
378
379
377
378
377
378
382
387
390
392
391
388
387
385
383
384
384
385
388
392

Saturday 25

Waxing Gibbous 71%

13:36

03:41

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 Bad
22 OK
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: 05:49, Set: 19:53, Transit: 12:52. Moon - Rise: 13:36, Set: 03:41. Civil Dark: 20:24 - 05:17. Nautical Dark: 21:04 - 04:38. Astro Dark: 21:47 - 03:54

Total Clouds (% Sky Obscured)

85
94
95
80
65
57
46
35
29
27
39
42
55
60
56
61
70
81
87
94
100
96
94
91

Low Clouds (% Sky Obscured)

54
66
78
80
65
40
22
23
24
23
37
42
55
60
56
61
70
81
87
94
100
96
94
91

Medium Clouds (% Sky Obscured)

60
55
45
35
35
35
35
34
29
27
33
32
44
49
56
51
46
38
42
51
64
59
55
41

High Clouds (% Sky Obscured)

85
94
95
68
37
6
19
33
29
27
16
0
0
0
0
1
3
4
20
32
46
59
68
60

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

Precipitation Probability (%)

38
47
52
62
70
79
71
57
28
23
18
10
8
5
2
6
7
6
8
8
6
7
4
0

Precipitation Amount (mm)

0
0
0.2
0.3
0.4
0.5
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
4
8
8
8
8
10
11
6
6
6
6
5
5
1
1
1
1
1
1
3
3

Dew Point (°C)

-1
-1
-1
-1
-1
-1
-1
-1
1
1
2
3
3
3
3
3
2
2
2
2
1
1
1
2

Relative Humidity (%)

51
49
47
45
44
44
44
49
57
64
71
79
86
88
91
93
93
91
89
85
80
75
67
62

Pressure (mb)

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

Ozone (du)

395
395
395
394
395
397
398
398
399
400
401
403
404
405
406
408
411
414
417
417
417
417
412
408

Sunday 26

Waxing Gibbous 80%

14:48

04:00

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 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK

Sun - Rise: 05:47, Set: 19:54, Transit: 12:51. Moon - Rise: 14:48, Set: 04:00. Civil Dark: 20:26 - 05:15. Nautical Dark: 21:05 - 04:36. Astro Dark: 21:49 - 03:52

Total Clouds (% Sky Obscured)

86
81
74
78
88
98
95
80
75
69
67
67
57
48
35
41
46
52
50
49
39

Low Clouds (% Sky Obscured)

81
71
61
72
85
98
94
80
75
67
53
42
33
26
23
24
26
29
21
14
8

Medium Clouds (% Sky Obscured)

24
16
14
9
6
3
2
2
2
2
1
0
0
0
0
1
2
4
3
3
4

High Clouds (% Sky Obscured)

36
2
7
5
2
0
0
0
0
7
24
50
39
3
0
0
0
0
0
0
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
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 (%)

1
1
0
2
3
0
0
0
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

Wind Speed/Direction (mph)

6
5
4
4
4
4
3
3
4
4
4
4
4
4
3
3
3
3
3
3
4

Chance of Frost

Temperature (°C)

10
11
12
12
13
13
13
12
11
10
8
7
6
5
5
4
4
4
3
5
6

Feels Like (°C)

4
4
5
5
10
10
10
10
10
10
6
6
6
6
5
5
3
4
4
4
4

Dew Point (°C)

2
2
2
2
3
3
3
4
4
5
4
4
5
4
3
3
3
3
2
3
4

Relative Humidity (%)

56
53
52
50
50
51
51
57
64
70
77
84
93
91
91
91
91
93
91
86
82

Pressure (mb)

1019
1019
1019
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021

Ozone (du)

404
401
399
397
397
397
397
397
397
398
396
393
391
389
386
384
380
376
372
370
368

Forecast for Hemmingford, Montérégie, Canada (45.05,-73.58)

Generated: 20/04/26 11:45:27. Forecast: 20/04/26 to 26/04/26. Timezone: UTC-4.00