Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 19

Waxing Crescent 8%

07:14

23:40

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

Sun - Rise: 06:24, Set: 20:09, Transit: 13:16. Moon - Rise: 07:14, Set: 23:40. Civil Dark: 20:40 - 05:53. Nautical Dark: 21:18 - 05:15. Astro Dark: 21:59 - 04:34

Total Clouds (% Sky Obscured)

100
95
93
46
23
50
87
100
77
52
33
36
35
52
54
71
51
39
68
65
86
80
75
47

Low Clouds (% Sky Obscured)

80
51
0
0
23
35
39
62
57
47
26
0
0
0
0
4
0
30
37
34
38
55
42
34

Medium Clouds (% Sky Obscured)

88
95
60
13
0
0
38
50
37
0
0
10
12
36
39
53
41
24
39
24
47
32
18
2

High Clouds (% Sky Obscured)

0
55
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
15
25
63
4

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 (%)

5
0
0
0
0
2
16
5
14
26
3
1
2
1
1
1
2
5
1
0
1
5
4
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)

7
9
8
6
8
10
12
14
15
16
16
15
15
14
13
10
9
8
9
9
8
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
77
74
71
60
51
45
43
41
39
39
41
40
46
56
59
62
62
64
64
60
55
57

Pressure (mb)

1013
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1017
1018
1018
1018
1019
1019
1020
1021

Ozone (du)

356
356
365
376
390
396
405
406
413
413
417
417
417
416
419
421
419
416
421
426
434
439
446
451

Monday 20

Waxing Crescent 16%

08:00

00:55

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

Sun - Rise: 06:23, Set: 20:10, Transit: 13:16. Moon - Rise: 08:00, Set: 00:55. Civil Dark: 20:41 - 05:51. Nautical Dark: 21:19 - 05:13. Astro Dark: 22:01 - 04:32

Total Clouds (% Sky Obscured)

22
12
26
41
53
48
40
52
55
80
68
60
37
17
6
10
72
60
16
31
40
94
97
99

Low Clouds (% Sky Obscured)

22
6
26
41
53
48
40
52
55
80
64
60
34
17
0
0
0
0
0
0
0
0
0
7

Medium Clouds (% Sky Obscured)

2
2
2
2
2
2
1
0
0
0
0
0
0
0
0
1
72
51
13
30
40
56
94
98

High Clouds (% Sky Obscured)

4
4
9
5
5
4
1
0
0
0
0
0
0
0
4
10
38
35
3
4
4
70
70
62

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
1
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-10
-10
-11
-14
-16
-17
-17
-18
-17
-15
-15
-14
-14
-14
-13
-11
-10
-10
-9
-10
-10
-10
-11

Relative Humidity (%)

59
61
61
58
43
36
31
27
25
26
29
29
30
32
34
38
47
56
58
60
59
58
56
52

Pressure (mb)

1022
1023
1024
1025
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1027
1027
1026
1026
1026

Ozone (du)

459
461
458
458
457
453
449
450
454
456
460
458
440
421
407
400
397
399
399
397
395
394
391
387

Tuesday 21

Waxing Crescent 26%

09:00

01:56

04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
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 OK

Sun - Rise: 06:21, Set: 20:11, Transit: 13:16. Moon - Rise: 09:00, Set: 01:56. Civil Dark: 20:42 - 05:50. Nautical Dark: 21:21 - 05:11. Astro Dark: 22:02 - 04:30

Total Clouds (% Sky Obscured)

80
96
95
91
98
88
93
100
100
100
100
93
99
100
100
100
100
100
94
75
59
41
17
26

Low Clouds (% Sky Obscured)

26
39
30
22
10
26
73
83
100
100
99
80
88
87
84
89
87
75
69
71
59
41
8
9

Medium Clouds (% Sky Obscured)

70
91
92
89
95
87
83
81
97
39
38
34
28
23
22
12
13
7
0
2
0
0
5
10

High Clouds (% Sky Obscured)

41
4
28
70
48
3
3
3
6
4
19
37
92
88
95
98
98
91
50
11
8
0
4
6

ISS Passover

Visibility (miles)

9
9
6
4
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
5
29
6
1
7
19
18
19
24
9
3
4
4
1
0
0
4
4
3
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
52
50
49
47
42
41
41
51
55
60
64
66
68
71
77
82
86
88
89
91
91
93
96

Pressure (mb)

1025
1025
1024
1023
1023
1022
1021
1020
1019
1018
1017
1016
1016
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

385
385
385
383
382
381
378
374
371
369
368
369
368
370
373
373
378
383
384
386
386
385
383
381

Wednesday 22

Waxing Crescent 37%

10:11

02:42

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

Sun - Rise: 06:19, Set: 20:12, Transit: 13:16. Moon - Rise: 10:11, Set: 02:42. Civil Dark: 20:44 - 05:48. Nautical Dark: 21:22 - 05:09. Astro Dark: 22:04 - 04:28

Total Clouds (% Sky Obscured)

36
34
33
35
33
31
30
34
32
45
30
31
28
38
46
54
36
18
0
9
16
20
31
53

Low Clouds (% Sky Obscured)

15
18
20
22
12
6
0
0
0
0
9
18
28
27
20
15
11
5
0
8
16
20
18
12

Medium Clouds (% Sky Obscured)

16
15
16
15
17
22
25
25
27
36
22
13
2
14
26
39
24
12
0
0
0
0
2
0

High Clouds (% Sky Obscured)

5
3
2
1
1
1
0
1
0
1
0
0
0
0
0
0
0
0
0
1
2
2
14
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
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)

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

Chance of Frost

Temperature (°C)

1
1
1
1
2
5
7
9
11
12
13
13
13
13
12
11
9
8
6
6
5
4
3
3

Feels Like (°C)

1
0
-0
0
0
2
5
7
9
10
10
11
11
11
10
10
8
7
5
5
4
3
2
2

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
98
84
62
52
46
41
37
35
33
34
36
41
52
69
75
72
72
71
73
73
74

Pressure (mb)

1014
1015
1015
1016
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1016
1016
1017
1018
1018
1019
1019
1019
1019
1019

Ozone (du)

380
379
377
375
374
374
375
374
373
371
368
367
367
366
365
363
362
360
360
360
361
360
359
359

Thursday 23

First Quarter 49%

11:28

03:17

04 Bad
05 OK
06 OK
07 Bad
08 Bad
09 Bad
10 Bad
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

Sun - Rise: 06:18, Set: 20:14, Transit: 13:16. Moon - Rise: 11:28, Set: 03:17. Civil Dark: 20:45 - 05:46. Nautical Dark: 21:24 - 05:08. Astro Dark: 22:06 - 04:25

Total Clouds (% Sky Obscured)

54
29
44
71
66
87
100
98
100
100
100
94
82
91
72
69
74
80
86
90
94
98
79
56

Low Clouds (% Sky Obscured)

7
5
2
1
1
1
7
1
1
0
1
2
3
2
1
0
6
13
21
32
45
60
70
56

Medium Clouds (% Sky Obscured)

0
0
2
2
7
30
50
59
71
79
52
55
58
85
44
41
38
34
31
28
32
29
22
12

High Clouds (% Sky Obscured)

36
29
44
71
66
87
99
98
100
100
68
41
11
12
9
14
25
34
41
50
66
83
57
31

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
1
1
0
1
1
1
1
1
1
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)

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

Chance of Frost

Temperature (°C)

3
2
2
3
4
5
7
8
9
10
11
11
11
10
9
9
8
7
6
5
5
4
3
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
77
79
76
64
54
46
41
38
37
35
35
35
36
38
54
63
63
61
61
62
62
63
63

Pressure (mb)

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

Ozone (du)

359
359
357
356
353
353
354
354
353
352
353
352
351
351
350
349
349
349
349
349
350
351
351
351

Friday 24

Waxing Gibbous 60%

12:46

03:44

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

Sun - Rise: 06:16, Set: 20:15, Transit: 13:16. Moon - Rise: 12:46, Set: 03:44. Civil Dark: 20:47 - 05:45. Nautical Dark: 21:25 - 05:06. Astro Dark: 22:08 - 04:23

Total Clouds (% Sky Obscured)

25
15
20
25
25
25
30
34
36
32
36
35
22
48
72
100
100
100
100
100
100
100
97
95

Low Clouds (% Sky Obscured)

25
15
20
25
25
25
30
34
29
13
17
20
22
17
8
0
1
2
4
3
2
2
16
28

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
27
57
85
85
90
90
87
80

High Clouds (% Sky Obscured)

4
0
0
0
0
2
2
8
14
22
25
35
22
48
72
100
98
98
98
94
82
30
65
56

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
1
1
0
3
4
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)

6
6
6
6
6
6
6
7
6
6
6
6
6
6
6
5
5
5
6
7
7
7
7
6

Chance of Frost

Temperature (°C)

1
0
0
0
1
3
4
6
8
10
12
12
13
13
12
11
10
9
8
7
7
6
6
5

Feels Like (°C)

-2
-3
-3
-3
-3
-2
-1
0
0
1
2
10
11
11
11
12
13
7
7
7
7
6
6
2

Dew Point (°C)

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

Relative Humidity (%)

61
61
60
59
59
54
50
46
44
43
42
43
45
46
53
61
72
76
78
81
78
74
70
66

Pressure (mb)

1016
1016
1016
1016
1016
1016
1015
1014
1013
1013
1012
1011
1011
1010
1011
1011
1011
1011
1012
1012
1013
1013
1013
1013

Ozone (du)

350
349
349
348
348
347
347
347
347
347
346
347
347
347
347
347
347
347
347
347
347
348
348
348

Saturday 25

Waxing Gibbous 71%

14:02

04:05

04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
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

Sun - Rise: 06:14, Set: 20:16, Transit: 13:15. Moon - Rise: 14:02, Set: 04:05. Civil Dark: 20:48 - 05:43. Nautical Dark: 21:27 - 05:04. Astro Dark: 22:10 - 04:21

Total Clouds (% Sky Obscured)

93
96
97
98
89
80
70
61
67
68
80
87
92
95
98
98
97
96
90
85
85
85

Low Clouds (% Sky Obscured)

37
23
16
10
9
7
3
14
28
44
39
39
42
53
64
75
61
53
45
45
45
45

Medium Clouds (% Sky Obscured)

77
79
75
72
46
23
3
10
20
28
41
53
66
62
59
60
85
85
80
75
70
65

High Clouds (% Sky Obscured)

56
56
52
58
66
80
70
61
67
65
60
50
50
35
20
20
20
20
25
5
5
10

ISS Passover

Visibility (miles)

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

Fog (%)

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
1
2
2
2
3
2
7
13
19
37
42
42
59
69
78
79
81
84

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
1
1
1
1
2
3
4
5
6
7
9
10
10
10
10
11
6
6
6
7
6

Dew Point (°C)

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

Relative Humidity (%)

62
59
60
60
61
55
51
48
48
49
49
53
57
61
70
81
95
96
96
96
96
96

Pressure (mb)

1013
1013
1014
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

348
349
349
349
350
350
350
350
350
350
350
350
349
348
349
349
349
350
351
352
352
352

Forecast for Glen Echo, Canada (44.94,-79.51)

Generated: 19/04/26 04:49:29. Forecast: 19/04/26 to 25/04/26. Timezone: UTC-4.00