Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

Waxing Crescent 26%

09:46

01:32

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
11 Bad
12 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)

78
67
75
65
77
99
100
96
98
98
95
96
96
100
100
99
100
100
100
100
100
100
100
95

Low Clouds (% Sky Obscured)

33
43
13
1
3
2
25
49
56
54
35
39
40
41
60
83
81
76
73
60
63
58
62
63

Medium Clouds (% Sky Obscured)

38
31
27
34
77
77
82
70
93
94
89
90
93
100
99
80
93
91
85
75
75
75
55
45

High Clouds (% Sky Obscured)

0
0
0
5
10
43
69
55
15
1
0
0
0
0
1
3
80
100
29
34
20
15
15
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
6
8
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
4
9
10
17
3
9
26
29
34
35
23
11
25
11
16

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)

9
8
7
6
6
6
4
4
4
6
7
7
7
6
7
8
10
10
10
10
11
10
10
9

Chance of Frost

Temperature (°C)

7
8
9
9
9
8
7
5
5
4
4
4
4
4
4
4
4
3
4
4
5
5
5
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

27
29
30
31
33
37
43
38
42
51
62
62
62
63
67
67
73
88
94
94
93
91
93
90

Pressure (mb)

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

Ozone (du)

406
397
387
379
374
373
369
369
372
380
386
387
387
383
384
388
393
395
395
395
398
401
405
409

Wednesday 22

Waxing Crescent 37%

11:03

02:19

13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 OK
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 Bad
11 Bad
12 Bad

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)

88
78
86
86
88
84
44
19
35
52
96
96
97
99
100
84
75
66
70
68
38
83
78
76

Low Clouds (% Sky Obscured)

75
66
64
69
71
66
34
4
18
41
60
51
36
39
13
46
33
4
5
20
34
52
48
50

Medium Clouds (% Sky Obscured)

26
32
29
12
20
4
19
19
35
37
80
86
92
72
74
2
0
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
2
43
29
70
2
0
0
1
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
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 (%)

7
0
1
1
0
2
0
0
1
1
3
3
16
43
29
12
13
4
12
3
4
11
2
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
8
7
6
6
5
4
4
5
4
4
4
4
4
3
4
8
8
8
10
11
12
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
82
74
73
77
85
88
93
94
94
94
91
89
88
91
91
94
94
89
79
64
57
55
52

Pressure (mb)

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

Ozone (du)

408
407
405
403
404
409
410
407
406
406
402
402
402
402
401
400
399
398
398
399
399
400
401
404

Thursday 23

First Quarter 49%

12:21

02:53

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

Sun - Rise: 05:52, Set: 19:50, Transit: 12:52. Moon - Rise: 12:21, 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)

82
77
92
88
68
56
60
55
48
23
15
21
4
0
5
14
8
8
8
4
38
48
62
75

Low Clouds (% Sky Obscured)

56
54
59
46
15
26
20
25
45
23
15
21
1
0
5
14
1
2
2
1
13
28
45
63

Medium Clouds (% Sky Obscured)

0
0
26
26
13
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
7

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
9
8
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)

13
13
13
13
12
10
8
7
7
5
5
5
5
6
6
6
6
6
7
8
8
9
9
9

Chance of Frost

Temperature (°C)

10
11
11
11
11
11
10
7
5
4
3
2
1
0
-0
-1
-1
-1
0
3
4
6
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
41
38
38
38
44
51
57
64
67
70
73
76
77
78
80
81
83
74
63
59
55
54
56

Pressure (mb)

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

Ozone (du)

400
399
400
399
398
396
396
396
396
396
399
401
406
410
415
419
423
423
423
424
418
404
394
388

Friday 24

Waxing Gibbous 60%

No Rise

03:20

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

Sun - Rise: 05:51, Set: 19:51, Transit: 12:52. Moon - Rise: No Rise, 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)

87
85
81
81
83
77
38
27
16
12
17
17
13
13
16
15
14
23
27
20
26
31
62
64

Low Clouds (% Sky Obscured)

77
74
74
78
81
71
26
18
8
4
9
7
3
6
8
8
8
10
8
4
4
4
9
15

Medium Clouds (% Sky Obscured)

9
19
27
33
33
39
38
27
16
12
11
5
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
2
2
1
2
2
5
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
1
1
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)

9
9
8
8
8
7
5
4
4
3
3
3
3
3
3
3
3
4
4
6
7
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
46
45
43
46
49
57
63
66
67
69
71
74
77
78
80
83
83
76
67
61
53
49
47

Pressure (mb)

1013
1013
1013
1012
1013
1013
1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

383
381
380
378
375
373
371
371
372
377
377
373
372
372
369
370
371
372
376
379
381
383
385
386

Saturday 25

Waxing Gibbous 71%

13:36

03:41

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

Sun - Rise: 05:49, Set: 19:53, Transit: 12:51. 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)

78
79
83
82
81
79
70
16
19
18
29
22
65
83
72
64
55
49
49
48
47
58
58
72

Low Clouds (% Sky Obscured)

28
26
25
22
19
15
10
15
19
18
18
9
0
14
8
1
9
15
29
41
47
58
55
31

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
49
48
47
47
48
49
48
47
58
58
65

High Clouds (% Sky Obscured)

5
5
10
10
25
25
22
6
8
9
22
15
65
83
72
58
39
20
1
1
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
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
4
7
5
9
9
4
9
11
4
12
13

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

Chance of Frost

Temperature (°C)

11
12
12
12
13
12
10
8
7
5
4
4
4
3
5
5
4
5
6
6
8
9
11
12

Feels Like (°C)

7
8
9
9
9
8
7
5
6
4
5
4
3
1
4
3
3
3
2
2
6
6
6
7

Dew Point (°C)

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

Relative Humidity (%)

44
42
42
42
42
50
59
63
66
75
79
80
82
82
83
85
85
80
76
71
64
59
53
51

Pressure (mb)

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

Ozone (du)

385
386
387
387
387
386
386
386
386
387
387
386
384
382
382
382
383
385
387
389
390
391
393
393

Sunday 26

Waxing Gibbous 80%

14:48

04:00

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
11 Bad
12 Bad

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)

47
55
72
92
81
70
61
54
54
49
63
74
95
98
100
100
100
100
98
97
93
90
85
79

Low Clouds (% Sky Obscured)

7
21
40
70
60
41
21
18
20
22
41
47
54
57
60
63
59
54
60
60
61
63
47
31

Medium Clouds (% Sky Obscured)

47
49
50
51
53
55
57
46
35
25
31
33
37
52
66
82
86
89
90
84
79
78
78
71

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
5
5
15
15
13
14
22
26
25

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 (%)

9
19
20
15
17
18
14
14
13
11
11
9
5
6
6
4
7
7
5
7
5
1
6
8

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
9
8
8
7
6
5
4
3
2
2
1
1
2
2
2
2
2
2
2
3
4
6
6

Chance of Frost

Temperature (°C)

12
13
13
13
12
11
10
9
8
7
6
6
6
6
6
5
5
6
7
8
10
11
13
14

Feels Like (°C)

7
8
12
12
11
11
11
12
7
7
7
7
7
7
4
4
4
4
4
4
7
7
8
9

Dew Point (°C)

2
2
2
2
2
2
2
3
3
2
3
2
2
2
2
2
2
2
3
3
3
4
4
4

Relative Humidity (%)

49
47
47
48
49
53
58
64
69
71
76
76
76
75
76
79
80
76
73
70
64
58
54
50

Pressure (mb)

1016
1016
1017
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021

Ozone (du)

393
393
392
390
389
390
390
391
389
388
387
386
385
385
384
383
382
384
385
386
386
386
386
384

Monday 27

Waxing Gibbous 88%

15:58

04:17

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

Sun - Rise: 05:46, Set: 19:55, Transit: 12:51. Moon - Rise: 15:58, Set: 04:17. Civil Dark: 20:27 - 05:14. Nautical Dark: 21:07 - 04:34. Astro Dark: 21:51 - 03:50

Total Clouds (% Sky Obscured)

72
75
80
85
67
56
40
41
40
42
40
36
29
25
20
15
25
34
37

Low Clouds (% Sky Obscured)

13
15
19
23
21
19
19
17
17
17
17
18
23
18
16
12
18
23
27

Medium Clouds (% Sky Obscured)

62
62
64
66
45
26
12
16
20
25
20
13
7
3
2
2
2
2
3

High Clouds (% Sky Obscured)

10
32
55
73
49
25
2
1
1
0
0
0
0
0
0
0
3
6
10

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

6
9
9
5
9
8
2
4
3
0
4
5
6
4
2
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
15
15
15
13
12
10
9
8
8
7
7
6
6
5
5
6
7

Feels Like (°C)

8
9
13
13
12
13
13
14
9
8
9
9
8
8
6
5
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

46
44
44
44
44
51
58
67
69
70
73
75
76
79
83
86
88
86
84

Pressure (mb)

1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

383
382
381
380
379
378
378
377
379
381
383
380
377
375
371
368
364
362
359

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

Generated: 21/04/26 13:13:55. Forecast: 21/04/26 to 27/04/26. Timezone: UTC-4.00