Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 18

Waxing Crescent 11%

07:23

00:25

22 OK
23 Bad
00 Bad
01 OK
02 OK
03 Bad
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

Sun - Rise: 05:45, Set: 21:28, Transit: 13:36. Moon - Rise: 07:23, Set: 00:25. Civil Dark: 22:08 - 05:03. Nautical Dark: 23:04 - 04:06. Astro Dark: 00:29 - 02:39

Total Clouds (% Sky Obscured)

32
44
42
35
38
58
51
56
76
78
77
96
100
100
100
98
100
100
100
97
100
93
95
100

Low Clouds (% Sky Obscured)

19
22
18
4
0
5
6
0
0
0
2
26
44
61
68
56
58
58
94
94
78
67
50
39

Medium Clouds (% Sky Obscured)

24
15
16
28
29
49
40
38
75
78
77
93
93
100
100
92
99
100
100
94
97
85
93
100

High Clouds (% Sky Obscured)

9
8
2
1
0
3
8
10
10
12
7
16
100
100
100
86
85
1
82
6
100
25
30
35

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
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
Very Light Rain
None
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
6
28
42
54
48
31
54
67
64
16
5
27

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0.2
0.3
0.3
0
0
0

Wind Speed/Direction (mph)

3
2
2
5
5
5
5
5
6
6
8
10
12
13
12
12
14
13
13
13
13
13
14
14

Chance of Frost

Temperature (°C)

9
8
8
8
7
7
7
7
7
8
10
12
13
14
14
13
13
14
14
14
13
13
14
13

Feels Like (°C)

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

Dew Point (°C)

8
7
7
7
7
6
6
6
6
7
9
9
9
10
11
10
8
10
10
11
11
12
12
12

Relative Humidity (%)

90
90
91
93
94
93
93
93
93
93
91
84
77
75
82
79
68
76
75
86
86
89
89
90

Pressure (mb)

1016
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

372
367
365
363
362
363
363
362
361
361
360
361
363
366
373
371
369
369
366
364
363
364
365
367

Tuesday 19

Waxing Crescent 21%

08:44

01:20

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:43, Set: 21:30, Transit: 13:37. Moon - Rise: 08:44, Set: 01:20. Civil Dark: 22:10 - 05:02. Nautical Dark: 23:06 - 04:04. Astro Dark: 00:34 - 02:34

Total Clouds (% Sky Obscured)

98
99
100
94
93
96
100
100
100
92
100
91
97
89
100
94
89
100
96
89
95
88
93
68

Low Clouds (% Sky Obscured)

49
58
58
58
64
76
100
81
57
49
64
55
68
81
100
93
77
100
76
79
77
53
41
39

Medium Clouds (% Sky Obscured)

97
98
100
88
84
90
83
100
100
83
81
50
47
29
68
76
23
31
19
21
35
37
42
33

High Clouds (% Sky Obscured)

38
80
100
2
0
1
2
82
85
0
0
0
0
0
0
0
0
0
0
0
4
2
23
1

ISS Passover

Visibility (miles)

9
9
9
9
9
4
9
9
9
9
9
9
9
8
7
6
5
3
6
4
7
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
Very Light Rain
Very Light Rain
None
Light Rain
None
None
None
None
Light Rain
None
None
None
Very Light Rain
None
None
None
None
None
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

23
47
69
52
66
47
27
33
14
63
30
43
40
54
40
47
54
53
54
79
53
25
7
2

Precipitation Amount (mm)

0
0.2
0.3
0
0.4
0
0
0
0
0.9
0
0
0
0.2
0
0
0
0
0
0.6
0.3
0
0
0

Wind Speed/Direction (mph)

12
13
12
12
12
13
11
11
10
10
11
13
14
15
16
17
14
18
15
16
13
12
10
9

Chance of Frost

Temperature (°C)

13
12
12
12
13
13
13
13
13
13
13
14
14
14
15
15
15
16
16
16
15
15
15
15

Feels Like (°C)

9
8
8
9
9
9
9
10
10
10
10
11
11
10
11
11
12
13
13
13
14
14
14
13

Dew Point (°C)

11
11
11
11
11
12
12
12
12
12
12
12
11
11
10
10
12
12
12
12
11
11
11
12

Relative Humidity (%)

90
90
89
90
90
95
93
95
95
95
95
92
80
82
73
70
80
74
77
78
75
74
77
82

Pressure (mb)

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

Ozone (du)

368
370
378
379
377
374
374
375
380
380
376
375
372
371
368
368
368
369
369
364
360
356
351
348

Wednesday 20

Waxing Crescent 31%

10:11

01:57

22 OK
23 Bad
00 OK
01 Bad
02 Bad
03 Bad
04 Good
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 OK
20 OK
21 Good

Sun - Rise: 05:42, Set: 21:31, Transit: 13:37. Moon - Rise: 10:11, Set: 01:57. Civil Dark: 22:11 - 05:00. Nautical Dark: 23:09 - 04:02. Astro Dark: 00:39 - 02:28

Total Clouds (% Sky Obscured)

34
49
17
91
91
96
9
65
47
75
80
90
97
99
82
87
97
87
76
68
92
35
27
13

Low Clouds (% Sky Obscured)

34
27
0
0
0
0
1
0
7
0
16
34
33
37
27
24
22
18
18
38
39
27
16
8

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
51
24
55
49
43
49
48
70
45
34
21
22
16
7
0
0
0

High Clouds (% Sky Obscured)

5
33
17
91
90
86
9
4
11
1
13
29
50
26
39
57
69
37
8
17
83
10
12
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
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
11
10
11
11
10
10
10
11
12
13
14
16
16
17
19
19
20
22
22
22
22
19

Dew Point (°C)

12
12
12
11
11
11
10
10
10
10
11
11
12
11
11
11
11
11
11
11
12
12
15
14

Relative Humidity (%)

90
93
95
95
95
96
95
95
93
93
87
79
74
69
65
60
57
55
55
54
55
58
70
76

Pressure (mb)

1025
1026
1026
1026
1026
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1029
1028
1028
1028
1028
1028
1027
1027
1028

Ozone (du)

345
343
342
342
342
341
340
338
337
336
334
333
333
334
334
334
333
333
332
331
330
330
329
329

Thursday 21

Waxing Crescent 42%

11:37

02:22

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

Sun - Rise: 05:41, Set: 21:32, Transit: 13:37. Moon - Rise: 11:37, Set: 02:22. Civil Dark: 22:13 - 04:59. Nautical Dark: 23:11 - 04:00. Astro Dark: 00:45 - 02:22

Total Clouds (% Sky Obscured)

4
6
7
12
29
54
73
59
41
23
18
12
6
23
41
57
46
35
28
32
34
41
42
39

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
11
22
33
32
31
28
32
34
41
42
39

Medium Clouds (% Sky Obscured)

0
1
1
2
1
1
0
3
4
6
4
3
1
6
10
13
10
6
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
4
3
11
23
42
61
42
23
2
3
1
1
0
0
0
1
3
4
5
6
7
5
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 (%)

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
3
3
4
4
4
4
4
4
5
5
5
5
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

17
15
15
14
13
13
13
12
13
14
15
17
20
22
23
24
25
25
25
26
25
25
23
21

Feels Like (°C)

17
16
15
15
13
14
13
13
13
15
16
18
21
23
24
25
26
27
27
28
27
27
26
22

Dew Point (°C)

13
12
12
11
11
11
11
11
11
12
12
13
14
15
15
14
15
15
14
14
15
17
18
17

Relative Humidity (%)

79
80
83
84
86
86
89
89
90
89
82
73
69
63
59
55
53
52
50
49
52
63
71
76

Pressure (mb)

1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1029
1029
1029
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026

Ozone (du)

328
328
328
328
327
327
326
326
325
324
323
324
327
327
327
327
327
326
326
324
324
324
324
322

Friday 22

Waxing Crescent 53%

12:59

02:40

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

Sun - Rise: 05:40, Set: 21:34, Transit: 13:37. Moon - Rise: 12:59, Set: 02:40. Civil Dark: 22:14 - 04:58. Nautical Dark: 23:13 - 03:59. Astro Dark: 00:51 - 02:16

Total Clouds (% Sky Obscured)

35
34
34
32
20
9
1
6
5
4
22
37
51
57
52
54
55
55
59
57
53
53
45
36

Low Clouds (% Sky Obscured)

35
34
34
32
20
9
0
0
0
0
0
0
0
0
0
0
12
23
32
34
33
33
31
24

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
7
11
12
12
9
8
6

High Clouds (% Sky Obscured)

1
6
12
17
11
6
0
1
2
3
22
37
51
57
52
54
55
40
24
37
49
53
41
20

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
2
1
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
3
3
4
4
5
5
4
3
4
4
4
4
3
3
3
3
4
4
4
4
5

Chance of Frost

Temperature (°C)

19
18
17
16
15
15
15
14
14
16
18
20
22
23
25
26
26
26
27
27
26
25
24
22

Feels Like (°C)

20
19
18
18
17
17
16
16
15
17
19
22
24
26
27
29
30
29
30
30
29
29
29
26

Dew Point (°C)

15
14
13
14
13
13
12
12
12
13
14
14
15
16
16
16
15
15
15
15
16
17
17
17

Relative Humidity (%)

80
79
81
85
85
85
86
84
83
83
77
70
66
62
57
53
50
49
48
47
53
59
65
72

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1025
1025
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

321
322
322
322
323
323
322
322
322
323
323
323
323
324
326
329
330
330
331
331
335
339
342
340

Saturday 23

First Quarter 64%

14:17

02:54

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

Sun - Rise: 05:39, Set: 21:35, Transit: 13:37. Moon - Rise: 14:17, Set: 02:54. Civil Dark: 22:16 - 04:56. Nautical Dark: 23:15 - 03:57. Astro Dark: 00:58 - 02:08

Total Clouds (% Sky Obscured)

25
29
33
37
50
57
69
58
47
39
43
42
41
52
65
77
72
66
61
54
48
40
49
57

Low Clouds (% Sky Obscured)

17
15
12
11
11
11
12
8
5
1
5
10
14
15
15
17
12
11
11
12
9
6
17
28

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
4
14
30
43
47
39
42
34
25
29
26
26
31
21
22
27
25
22
17
16

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
13
13
6
43
40
24
24
18
1
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)

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

Chance of Frost

Temperature (°C)

20
18
17
17
16
16
15
15
16
16
17
18
20
21
22
23
24
24
24
24
24
23
22
20

Feels Like (°C)

25
24
24
23
22
16
17
17
16
16
16
18
19
19
20
20
21
26
25
25
25
25
26
22

Dew Point (°C)

17
16
16
15
15
14
14
14
14
14
14
15
15
15
15
15
16
15
16
15
16
16
17
16

Relative Humidity (%)

80
86
89
90
92
92
92
92
90
87
85
80
74
68
65
62
59
58
58
57
61
66
73
74

Pressure (mb)

1026
1026
1027
1027
1027
1028
1028
1028
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1030

Ozone (du)

338
336
334
332
330
329
328
327
326
325
324
323
322
321
321
322
322
322
322
322
320
318
316
316

Sunday 24

Waxing Gibbous 74%

15:31

03:07

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

Sun - Rise: 05:38, Set: 21:36, Transit: 13:37. Moon - Rise: 15:31, Set: 03:07. Civil Dark: 22:17 - 04:55. Nautical Dark: 23:17 - 03:55. Astro Dark: 01:05 - 01:58

Total Clouds (% Sky Obscured)

63
46
30
13
18
24
32
34
34
37
29
21
12
8
4
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

39
33
26
13
18
24
32
34
34
35
28
16
9
5
3
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

19
13
6
1
1
2
2
2
2
3
2
1
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

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
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
2
1
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

Wind Speed/Direction (mph)

8
8
8
7
7
7
7
7
7
8
8
9
9
9
10
10
10
10
10
10
10
9

Chance of Frost

Temperature (°C)

19
17
17
16
15
15
14
14
14
14
14
16
18
19
21
23
24
25
25
26
25
24

Feels Like (°C)

22
21
20
20
19
16
15
16
15
14
13
16
17
18
19
20
22
27
26
26
26
27

Dew Point (°C)

15
14
13
13
13
13
12
12
11
11
11
11
12
12
13
13
14
14
14
14
15
17

Relative Humidity (%)

76
78
81
85
87
87
87
87
84
82
78
72
67
62
58
54
51
50
48
48
54
62

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1028
1028
1027
1027
1027

Ozone (du)

315
315
314
313
312
312
312
312
311
310
308
308
307
306
307
307
308
308
309
310
310
310

Forecast for Elst, Flemish Brabant, Kingdom of Belgium (50.77,4.89)

Generated: 18/05/26 22:36:21. Forecast: 18/05/26 to 24/05/26. Timezone: UTC+2.00