Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waning Crescent 3%

No Rise

No Set

23 OK
00 Bad
01 OK
02 OK
03 Bad
04 OK
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

Sun - Rise: N/A, Set: N/A, Transit: 11:41. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 15:11 - 08:11. Astro Dark: 17:21 - 06:01

Total Clouds (% Sky Obscured)

43
66
33
32
35
35
30
59
53
79
74
64
76
47
35
34
44
44
40
35
32
45
32
33

Low Clouds (% Sky Obscured)

1
1
1
0
8
17
16
10
11
10
13
2
2
1
8
9
11
11
9
10
11
21
14
14

Medium Clouds (% Sky Obscured)

25
39
18
14
16
15
9
16
13
36
48
50
21
5
6
4
14
26
24
9
5
4
4
5

High Clouds (% Sky Obscured)

4
16
5
4
3
3
4
4
4
12
19
28
51
38
11
10
9
5
3
4
2
1
4
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
6
6
9
9
9
9
8
8
8
8
8
8
8
8
8
8

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
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-17
-17
-18
-18
-18
-19
-19
-19
-19
-19
-20
-20
-19
-19
-19
-18
-18
-19
-20
-19
-19
-19
-20
-20

Dew Point (°C)

-19
-19
-19
-19
-19
-18
-19
-18
-18
-18
-19
-19
-19
-19
-19
-19
-19
-20
-20
-19
-19
-19
-19
-20

Relative Humidity (%)

69
71
73
72
74
76
77
79
79
77
77
79
76
77
77
78
80
79
78
78
80
79
80
79

Pressure (mb)

1015
1015
1015
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020

Ozone (du)

306
303
302
302
298
295
302
303
298
296
297
298
297
298
299
299
301
304
303
305
307
310
311
315

Tuesday 18

Waning Crescent 1%

No Rise

No Set

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

Sun - Rise: N/A, Set: N/A, Transit: 11:41. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 15:05 - 08:17. Astro Dark: 17:17 - 06:05

Total Clouds (% Sky Obscured)

31
16
24
54
49
27
23
25
23
16
19
21
24
24
22
19
13
14
15
14
14
11
10
8

Low Clouds (% Sky Obscured)

13
1
4
4
3
3
3
3
2
2
10
14
22
23
22
18
8
1
1
1
1
1
1
1

Medium Clouds (% Sky Obscured)

4
4
8
41
26
3
2
2
3
2
2
2
1
1
2
2
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

3
3
3
16
3
4
6
6
4
5
5
3
3
3
3
1
1
2
2
2
2
0
0
0

ISS Passover

Visibility (miles)

8
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
1
1
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)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
3
3

Chance of Frost

Temperature (°C)

-18
-18
-18
-18
-18
-18
-18
-18
-19
-19
-18
-19
-19
-18
-19
-18
-18
-19
-18
-19
-19
-19
-19
-19

Feels Like (°C)

-21
-21
-20
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21
-22
-21

Dew Point (°C)

-21
-21
-22
-22
-22
-22
-22
-23
-23
-23
-23
-24
-24
-24
-24
-24
-24
-25
-24
-25
-25
-25
-25
-25

Relative Humidity (%)

76
74
72
70
70
69
69
68
66
66
65
64
63
62
61
60
60
59
59
59
59
58
58
58

Pressure (mb)

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

Ozone (du)

315
314
315
315
315
316
316
313
314
315
316
315
315
316
316
316
314
313
314
316
315
313
314
316

Wednesday 19

Waning Crescent 0%

No Rise

No Set

23 OK
00 OK
01 OK
02 OK
03 OK
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 OK
20 OK
21 OK
22 OK

Sun - Rise: N/A, Set: N/A, Transit: 11:41. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 14:59 - 08:23. Astro Dark: 17:12 - 06:10

Total Clouds (% Sky Obscured)

3
0
0
0
0
0
0
0
5
9
10
8
8
5
3
3
3
3
3
3
9
15
19
20

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
15
19
20

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
4
3
3
3
4
3
3
3
3
3
3
6
8
12
11

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)

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

Chance of Frost

Temperature (°C)

-19
-19
-20
-20
-20
-20
-20
-20
-21
-21
-20
-21
-21
-21
-22
-22
-22
-23
-23
-23
-23
-23
-23
-23

Feels Like (°C)

-21
-21
-22
-22
-22
-22
-23
-23
-23
-23
-23
-23
-24
-24
-24
-24
-25
-25
-25
-25
-25
-26
-26
-26

Dew Point (°C)

-25
-25
-25
-26
-25
-25
-26
-26
-26
-26
-26
-26
-26
-26
-27
-27
-27
-28
-28
-28
-28
-28
-28
-28

Relative Humidity (%)

59
60
60
60
62
62
58
58
58
59
59
59
58
59
59
59
59
59
59
59
59
59
59
58

Pressure (mb)

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

Ozone (du)

316
318
321
322
322
320
319
318
316
317
317
316
317
315
312
310
310
311
311
310
310
310
310
309

Thursday 20

New Moon 2%

No Rise

No Set

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

Sun - Rise: N/A, Set: N/A, Transit: 11:41. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 14:54 - 08:29. Astro Dark: 17:08 - 06:14

Total Clouds (% Sky Obscured)

18
16
30
74
88
93
99
100
100
100
100
100
99
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
9
18
24
33
39
42
38
42
33
43
50
50
47
41
34
48
56
41
42
41
45
44

Medium Clouds (% Sky Obscured)

18
16
30
71
88
93
97
98
98
99
100
100
99
95
95
95
95
95
90
85
85
95
100
100

High Clouds (% Sky Obscured)

11
11
17
54
60
64
77
77
80
84
89
92
90
87
90
95
100
94
89
83
86
88
92
78

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
1
3
6
4
4
10
15
21
22

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

Chance of Frost

Temperature (°C)

-23
-23
-22
-22
-21
-21
-21
-20
-20
-20
-19
-19
-18
-18
-17
-17
-17
-16
-16
-15
-14
-14
-13
-12

Feels Like (°C)

-26
-26
-25
-25
-25
-25
-25
-25
-25
-24
-24
-24
-23
-22
-21
-22
-21
-21
-21
-19
-19
-19
-18
-17

Dew Point (°C)

-28
-28
-28
-28
-27
-28
-28
-27
-27
-27
-26
-26
-25
-25
-23
-23
-22
-21
-21
-20
-19
-19
-17
-17

Relative Humidity (%)

56
56
54
54
53
51
49
53
53
53
53
52
53
56
59
61
63
64
64
65
65
65
68
67

Pressure (mb)

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

Ozone (du)

308
306
307
307
304
305
307
309
311
312
313
314
314
315
315
315
314
315
316
317
317
317
317
317

Friday 21

Waxing Crescent 5%

No Rise

No Set

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
22 Bad

Sun - Rise: N/A, Set: N/A, Transit: 11:42. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 14:48 - 08:35. Astro Dark: 17:05 - 06:19

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97
97
99
99
100
99
98
96
97

Low Clouds (% Sky Obscured)

47
47
56
70
67
71
71
80
84
86
93
92
93
83
74
64
57
58
63
67
71
77
80
84

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
90
90
90
90
86
90
85
75
68

High Clouds (% Sky Obscured)

64
48
38
20
10
10
15
15
20
20
25
30
30
40
40
40
35
30
30
30
30
25
25
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
4
1
2
2
3
2
1
0

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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

17
15
20
28
42
70
85
95
95
95
95
95
95
95
95
90
60
53
46
45
49
46
45
44

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.4
0.7
0.9
0.7
0.7
1
1.3
1.4
1.1
0.6
0.3
0.1
0.1
0.1
0.2
0.2
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-12
-11
-10
-10
-9
-9
-9
-8
-8
-8
-8
-8
-9
-9
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8

Feels Like (°C)

-17
-17
-16
-15
-15
-14
-14
-14
-14
-13
-14
-13
-14
-14
-13
-13
-13
-13
-14
-14
-14
-13
-14
-14

Dew Point (°C)

-17
-16
-15
-15
-13
-12
-11
-11
-10
-10
-11
-11
-11
-12
-11
-11
-10
-9
-10
-9
-10
-9
-9
-9

Relative Humidity (%)

66
65
66
69
75
78
83
83
85
85
83
82
80
78
78
82
85
88
87
88
87
88
88
88

Pressure (mb)

1012
1012
1011
1010
1009
1008
1007
1007
1006
1006
1005
1005
1004
1003
1003
1002
1001
1001
1000
1000
999
999
999
999

Ozone (du)

317
318
319
321
322
323
324
324
326
330
333
334
335
335
335
336
337
339
341
343
344
342
340
338

Saturday 22

Waxing Crescent 10%

No Rise

No Set

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
22 Bad

Sun - Rise: N/A, Set: N/A, Transit: 11:42. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 14:43 - 08:41. Astro Dark: 17:01 - 06:23

Total Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
93
86
80
86
92
99
84
69
55
64
74
83
87
90
94
88

Low Clouds (% Sky Obscured)

89
92
90
87
85
90
94
97
90
83
76
83
89
96
84
69
55
64
74
78
83
89
94
88

Medium Clouds (% Sky Obscured)

59
61
58
67
79
76
77
82
65
36
3
0
0
0
0
0
0
21
40
59
44
28
12
13

High Clouds (% Sky Obscured)

30
35
35
35
30
26
18
8
5
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow

Precipitation Probability (%)

42
45
59
73
88
95
95
95
83
60
36
37
35
29
30
28
24
23
21
17
33
40
43
56

Precipitation Amount (mm)

0.1
0.1
0.2
0.3
0.5
0.7
0.8
0.8
0.6
0.3
0
0.1
0
0
0
0
0
0
0
0
0
0.1
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-8
-8
-8
-7
-7
-7
-8
-8
-8
-9
-9
-10
-10
-10
-11
-11
-12
-13
-13
-13
-13
-12
-12
-11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
92
90
92
92
92
92
90
90
90
88
90
90
88
88
88
90
90
90
88
88
90
88
90

Pressure (mb)

999
998
998
997
997
996
996
996
997
997
997
998
998
998
998
998
998
998
998
998
998
998
998
998

Ozone (du)

335
332
328
325
323
320
321
323
324
327
330
333
338
343
348
353
357
361
362
362
362
362
361
361

Sunday 23

Waxing Crescent 16%

No Rise

No Set

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

Sun - Rise: N/A, Set: N/A, Transit: 11:42. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: 14:38 - 08:47. Astro Dark: 16:57 - 06:27

Total Clouds (% Sky Obscured)

85
79
68
52
39
37
36
37
42
41
39
53
65
78
69
72
87
86
90
90

Low Clouds (% Sky Obscured)

85
79
68
52
39
37
36
37
42
41
39
49
56
62
52
46
44
39
35
34

Medium Clouds (% Sky Obscured)

14
19
19
17
15
10
6
0
1
1
2
14
26
40
41
37
33
34
34
30

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

3
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
3

Fog (%)

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

Precipitation Type

Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

66
75
66
56
42
39
29
4
6
5
2
4
6
6
5
2
0
5
6
5

Precipitation Amount (mm)

0.5
0.7
0.5
0.3
0.2
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-10
-10
-9
-10
-10
-11
-11
-11
-12
-12
-12
-12
-12
-12
-12
-13
-13
-13
-12
-12

Feels Like (°C)

-14
-13
-12
-13
-15
-15
-15
-15
-15
-16
-16
-15
-16
-16
-16
-17
-17
-17
-17
-18

Dew Point (°C)

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

Relative Humidity (%)

86
81
78
77
75
75
75
75
75
75
75
76
75
76
75
75
76
74
78
79

Pressure (mb)

998
999
999
1000
1000
1001
1002
1002
1003
1003
1004
1004
1005
1005
1005
1006
1006
1006
1007
1007

Ozone (du)

360
360
359
359
360
360
362
363
364
367
369
371
373
375
377
376
375
374
372
370

Forecast for Longyearbyen, Spitsbergen, Svalbard and Jan Mayen (78.15,16.04)

Generated: 17/11/25 23:03:54. Forecast: 17/11/25 to 23/11/25. Timezone: UTC+1.00