Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 78%

No Rise

No Set

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 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:29. Moon - Rise: No Rise, Set: No Set. Civil Dark: 15:03 - 09:54. Nautical Dark: 16:37 - 08:20. Astro Dark: 17:52 - 07:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

84
88
94
98
98
99
98
98
97
97
98
94
97
96
96
96
96
92
91
91
92
89
87
89

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
92
83
88
85
78
80
87
100
99
96
91
93
100
100
97
93
89

High Clouds (% Sky Obscured)

100
100
100
100
100
99
98
93
93
88
83
98
91
89
85
80
85
85
85
80
24
4
4
4

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

5
15
3
26
30
29
32
31
27
28
29
32
30
28
28
37
34
37
36
35
40
47
48
44

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0
0.1
0
0.1
0.1
0.1
0.1
0.2
0.2
0.2

Wind Speed/Direction (mph)

6
5
5
6
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4
4
4

Chance of Frost

Temperature (°C)

-9
-9
-9
-9
-9
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8

Feels Like (°C)

-13
-14
-13
-13
-13
-13
-13
-13
-13
-13
-13
-13
-13
-13
-12
-12
-13
-12
-12
-12
-12
-12
-12
-12

Dew Point (°C)

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

Relative Humidity (%)

92
94
92
92
92
92
92
94
92
94
94
94
92
92
92
92
92
94
92
92
92
92
94
94

Pressure (mb)

1013
1012
1011
1011
1011
1010
1010
1009
1008
1008
1007
1007
1006
1006
1005
1005
1005
1004
1004
1004
1004
1003
1003
1003

Ozone (du)

297
292
293
296
296
295
292
281
280
284
284
285
288
291
298
304
306
307
309
310
306
305
304
303

Tuesday 9

Waning Gibbous 68%

19:58

14:21

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 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:29. Moon - Rise: 19:58, Set: 14:21. Civil Dark: 15:02 - 09:57. Nautical Dark: 16:36 - 08:22. Astro Dark: 17:51 - 07:07

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

89
85
86
83
93
94
91
94
94
86
80
88
92
95
96
97
96
96
96
96
94
97
95
96

Medium Clouds (% Sky Obscured)

86
80
82
73
83
88
77
88
92
94
100
100
100
100
100
100
100
100
100
99
92
100
94
80

High Clouds (% Sky Obscured)

4
0
37
52
50
23
3
0
0
0
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

37
33
32
34
37
35
33
29
29
33
33
40
50
57
62
61
59
58
55
50
48
50
51
54

Precipitation Amount (mm)

0.1
0.1
0
0.1
0.1
0.1
0
0
0
0
0
0.1
0.2
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.1
0.2
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-8
-8
-8
-7
-8
-7
-8
-8
-8
-8
-9
-8
-8
-8
-9
-8
-9
-9
-8
-9
-9
-8
-8
-8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
90
90
92
92
92
92
92
92
92
92
92
92
92
92
92
92
92
90
92
92
92

Pressure (mb)

1003
1003
1003
1003
1003
1004
1004
1004
1004
1004
1005
1005
1005
1005
1006
1006
1007
1007
1008
1008
1008
1008
1008
1008

Ozone (du)

306
309
311
313
312
311
311
311
310
309
307
301
299
299
305
307
305
311
314
314
309
311
315
319

Wednesday 10

Waning Gibbous 57%

22:11

13:44

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 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:30. Moon - Rise: 22:11, Set: 13:44. Civil Dark: 15:00 - 09:59. Nautical Dark: 16:36 - 08:23. Astro Dark: 17:51 - 07:09

Total Clouds (% Sky Obscured)

98
99
99
99
98
99
98
99
99
99
99
98
98
98
99
99
100
98
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

95
95
96
94
94
95
93
95
90
91
93
93
94
95
94
95
95
95
92
93
90
87
85
89

Medium Clouds (% Sky Obscured)

80
73
76
65
71
77
69
79
85
82
85
75
78
82
91
92
99
75
95
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
31
63
90
85
76
85
85
90
85
85
85
85
80
80
80
85

ISS Passover

Visibility (miles)

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

Fog (%)

3
2
3
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Precipitation Type

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

Precipitation Probability (%)

59
60
60
56
57
54
53
54
51
54
55
56
57
56
55
56
61
61
60
59
51
58
64
64

Precipitation Amount (mm)

0.2
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.3
0.2
0.2
0.3
0.3
0.2
0.2
0.2
0.2
0.3
0.3

Wind Speed/Direction (mph)

7
10
13
14
14
15
16
16
17
18
17
18
18
18
18
18
19
19
19
19
19
19
19
18

Chance of Frost

Temperature (°C)

-8
-8
-8
-8
-8
-8
-8
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-8
-8
-8
-9
-9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
88
90
90
88
87
89
87
89
87
87
87
89
89
89
87
88
88
88
87
87
88

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1009
1009

Ozone (du)

316
309
308
305
305
307
308
306
305
304
305
304
304
305
306
308
311
314
315
316
316
317
318
318

Thursday 11

Third Quarter 57%

00:07

13:19

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 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:30. Moon - Rise: 00:07, Set: 13:19. Civil Dark: 14:59 - 10:01. Nautical Dark: 16:35 - 08:25. Astro Dark: 17:50 - 07:10

Total Clouds (% Sky Obscured)

100
100
98
97
95
85
75
64
54
51
50
60
60
55
50
50
45
45
45
50
60
70
75
80

Low Clouds (% Sky Obscured)

92
94
91
86
83
80
75
64
54
51
50
60
60
55
50
50
45
45
45
50
60
65
75
80

Medium Clouds (% Sky Obscured)

100
100
96
92
88
76
66
56
54
51
50
50
60
55
50
50
45
45
45
50
60
70
70
60

High Clouds (% Sky Obscured)

85
95
95
95
95
85
75
64
54
51
50
60
60
55
50
50
45
45
45
50
51
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Precipitation Type

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

Precipitation Probability (%)

64
63
58
52
45
50
48
46
48
49
52
51
50
50
48
51
52
50
49
45
47
47
51
57

Precipitation Amount (mm)

0.3
0.3
0.2
0.2
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.3

Wind Speed/Direction (mph)

17
17
17
16
15
14
12
10
9
8
7
5
5
4
4
4
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-14
-14
-14
-15
-15
-15
-15
-15
-15
-16
-16
-16
-17
-17
-19
-19
-19
-19
-20
-20
-21
-21
-20

Dew Point (°C)

-11
-11
-11
-11
-12
-12
-12
-12
-12
-12
-12
-13
-13
-14
-14
-15
-16
-16
-17
-17
-17
-18
-18
-18

Relative Humidity (%)

88
88
88
88
88
88
90
88
88
88
90
88
88
88
88
88
88
88
88
88
89
90
89
90

Pressure (mb)

1009
1010
1010
1011
1012
1012
1013
1013
1014
1015
1016
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1025
1026
1027

Ozone (du)

319
318
317
315
314
313
313
314
316
318
322
328
334
337
340
341
345
346
350
351
354
356
357
357

Friday 12

Waning Crescent 47%

01:56

12:57

06 Bad
07 Bad
08 Bad
09 Bad
10 OK
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

Sun - Rise: N/A, Set: N/A, Transit: 12:30. Moon - Rise: 01:56, Set: 12:57. Civil Dark: 14:58 - 10:03. Nautical Dark: 16:35 - 08:26. Astro Dark: 17:50 - 07:11

Total Clouds (% Sky Obscured)

85
85
85
64
16
29
33
41
48
51
51
48
38
37
42
39
37
38
40
39
52
64
74
82

Low Clouds (% Sky Obscured)

85
85
85
46
9
25
29
35
45
45
45
45
36
33
39
39
37
38
39
39
52
63
74
82

Medium Clouds (% Sky Obscured)

50
50
50
32
2
1
0
0
0
0
0
0
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
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
1
9
9
8
6
6
6
6
6
6
6
8
8
8
9
9
8
7
6
5
4
3

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Precipitation Type

Snow
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 (%)

45
26
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.1
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
3
3
2
2
2
2
2
2
3
3
2
2
3
3
3
3
3
4
4

Chance of Frost

Temperature (°C)

-17
-17
-17
-18
-18
-19
-19
-19
-18
-19
-19
-19
-19
-19
-19
-20
-21
-21
-21
-21
-21
-21
-21
-21

Feels Like (°C)

-21
-21
-22
-23
-22
-21
-21
-21
-21
-21
-21
-21
-22
-21
-21
-23
-23
-22
-23
-23
-22
-23
-23
-23

Dew Point (°C)

-18
-18
-19
-20
-20
-21
-21
-21
-21
-22
-22
-22
-22
-22
-22
-24
-24
-24
-24
-24
-24
-24
-24
-24

Relative Humidity (%)

90
89
88
85
83
81
79
79
78
78
78
77
77
77
77
73
74
73
73
74
75
75
75
75

Pressure (mb)

1028
1029
1030
1031
1032
1033
1034
1034
1035
1035
1035
1036
1036
1036
1036
1034
1034
1034
1034
1034
1033
1033
1033
1033

Ozone (du)

361
363
363
361
355
353
351
347
345
338
333
335
343
350
350
339
327
316
312
308
304
297
291
285

Saturday 13

Waning Crescent 37%

03:45

12:35

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 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:31. Moon - Rise: 03:45, Set: 12:35. Civil Dark: 14:58 - 10:04. Nautical Dark: 16:34 - 08:28. Astro Dark: 17:50 - 07:12

Total Clouds (% Sky Obscured)

90
98
99
100
100
86
72
58
45
33
20
45
71
96
97
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

90
98
99
99
100
85
69
56
45
33
20
45
71
95
97
98
100
100
99
99
99
99
98
96

Medium Clouds (% Sky Obscured)

0
0
9
17
26
30
34
43
45
33
20
37
10
5
5
5
5
0
0
5
5
5
8
11

High Clouds (% Sky Obscured)

0
0
1
2
3
4
5
5
4
3
2
1
1
1
2
4
5
5
5
5
16
26
36
58

ISS Passover

Visibility (miles)

3
2
2
1
1
0
3
6
9
8
6
4
3
2
1
1
1
1
1
1
1
1
1
1

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Precipitation Type

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

Precipitation Probability (%)

2
5
13
19
24
35
39
40
43
45
46
51
54
54
57
57
57
58
54
49
48
44
42
43

Precipitation Amount (mm)

0
0
0
0
0
0
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.2
0.1
0.1
0.1

Wind Speed/Direction (mph)

4
4
5
7
10
13
15
17
20
18
17
17
17
16
16
16
16
16
15
14
14
13
13
13

Chance of Frost

Temperature (°C)

-20
-20
-19
-18
-17
-16
-15
-15
-14
-16
-16
-15
-15
-15
-15
-15
-16
-16
-16
-16
-17
-16
-16
-16

Feels Like (°C)

-23
-22
-22
-24
-26
-27
-27
-27
-27
-22
-23
-23
-23
-23
-22
-23
-22
-22
-22
-22
-22
-22
-22
-22

Dew Point (°C)

-23
-23
-22
-20
-19
-18
-18
-19
-19
-20
-19
-18
-18
-18
-18
-17
-18
-18
-18
-18
-18
-18
-17
-17

Relative Humidity (%)

77
77
77
79
82
83
78
73
67
71
75
77
81
81
82
84
84
84
84
84
86
88
88
86

Pressure (mb)

1032
1032
1031
1030
1029
1028
1027
1025
1024
1023
1023
1022
1022
1021
1021
1020
1019
1019
1018
1017
1017
1016
1015
1014

Ozone (du)

284
284
284
286
289
291
291
292
293
294
294
295
298
300
303
304
306
307
308
309
310
316
321
327

Sunday 14

Waning Crescent 28%

05:44

12:11

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: N/A, Set: N/A, Transit: 12:31. Moon - Rise: 05:44, Set: 12:11. Civil Dark: 14:57 - 10:06. Nautical Dark: 16:34 - 08:29. Astro Dark: 17:49 - 07:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
99
98
98
98
99
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

95
94
95
96
97
97
96
96
95
94
93
94
96
99
99
99
99
98
98
98

Medium Clouds (% Sky Obscured)

15
18
40
62
85
79
73
67
68
72
74
68
68
76
79
91
90
92
87
91

High Clouds (% Sky Obscured)

79
100
100
100
97
86
76
65
45
34
29
35
46
59
71
83
95
94
93
84

ISS Passover

Visibility (miles)

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

Fog (%)

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Precipitation Type

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

Precipitation Probability (%)

45
47
55
61
68
74
78
82
69
52
24
15
10
6
5
5
4
3
3
5

Precipitation Amount (mm)

0.1
0.1
0.2
0.3
0.3
0.4
0.4
0.4
0.3
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-15
-15
-15
-15
-15
-14
-14
-14
-14
-14
-14
-14
-13
-12
-12
-11
-11
-11
-10
-10

Feels Like (°C)

-22
-21
-22
-20
-20
-19
-19
-18
-17
-17
-16
-15
-15
-14
-14
-14
-14
-14
-15
-16

Dew Point (°C)

-17
-17
-17
-16
-16
-15
-16
-15
-15
-15
-15
-15
-14
-14
-14
-12
-12
-12
-12
-12

Relative Humidity (%)

88
88
88
90
90
92
90
92
92
90
90
88
88
88
88
88
86
86
86
86

Pressure (mb)

1013
1012
1011
1011
1010
1009
1009
1009
1008
1008
1008
1008
1008
1008
1007
1007
1007
1007
1007
1006

Ozone (du)

340
354
367
368
369
370
372
375
378
367
355
343
336
328
320
311
302
292
291
290

Forecast for Kilpisjärvi, Tunturi-Lappi, Finland (69.07,20.76)

Generated: 08/12/25 06:10:50. Forecast: 08/12/25 to 14/12/25. Timezone: UTC+2.00