Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 22

Waxing Crescent 6%

No Rise

No Set

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
06 Bad
07 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:35. Moon - Rise: No Rise, Set: No Set. Civil Dark: 14:57 - 10:13. Nautical Dark: 16:36 - 08:35. Astro Dark: 17:51 - 07:20

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

96
90
76
75
78
82
93
93
89
82
83
80
75
57
66
70
49
25
14
14
20
42
53
51

Medium Clouds (% Sky Obscured)

0
0
0
1
1
18
33
63
48
80
80
90
98
88
87
98
96
97
87
55
44
34
25
15

High Clouds (% Sky Obscured)

2
4
45
78
85
87
97
100
89
88
85
95
100
93
87
85
85
80
64
75
80
80
81
76

ISS Passover

Visibility (miles)

0
0
2
2
1
1
2
2
5
6
9
9
8
8
8
8
8
7
9
9
9
7
4
4

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
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
2
12
7
9
4
0
0
0
3
3
9
12
11
9
8
7
5
4
4
3
2

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
1
1
2
2
3
3
3
3
3
3
3
3
3
4
4
5
6
7
8
9
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-10
-9
-11
-11
-11
-11
-11
-12
-12
-12
-12
-11
-12
-12
-12
-12
-11
-10
-10
-8
-6
-5

Dew Point (°C)

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

Relative Humidity (%)

90
92
92
92
92
92
94
92
92
90
85
87
90
92
92
94
94
94
94
92
92
94
94
92

Pressure (mb)

1026
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1027
1028
1028
1028
1028
1028
1027
1027
1027
1026
1026
1026
1026

Ozone (du)

336
332
326
321
313
302
294
291
290
287
285
283
281
277
275
275
274
274
276
281
283
281
282
283

Tuesday 23

Waxing Crescent 11%

14:18

16:49

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
06 Bad
07 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:36. Moon - Rise: 14:18, Set: 16:49. Civil Dark: 14:58 - 10:14. Nautical Dark: 16:36 - 08:35. Astro Dark: 17:52 - 07:20

Total Clouds (% Sky Obscured)

98
97
97
99
98
98
98
99
99
98
100
98
95
96
95
84
68
89
90
93
95
94
91
97

Low Clouds (% Sky Obscured)

59
73
81
90
90
82
90
91
81
64
87
90
80
76
70
59
49
68
75
84
84
87
78
75

Medium Clouds (% Sky Obscured)

12
10
32
31
22
27
35
35
35
30
30
9
2
0
0
0
0
0
0
1
26
12
3
2

High Clouds (% Sky Obscured)

80
75
74
77
78
85
77
54
53
49
52
46
7
17
10
15
11
8
6
6
55
84
89
93

ISS Passover

Visibility (miles)

2
2
2
2
1
1
1
1
1
0
1
1
5
2
3
4
1
0
0
0
0
0
0
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
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
8
0
0
0
0
0
0
0
0
0
0
0
0
0
2
8
11
13
15

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-6
-6
-7
-7
-6
-7
-7
-7
-7
-7
-8
-8
-8
-8
-8
-7
-8
-10
-10
-10
-9
-8

Dew Point (°C)

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

Relative Humidity (%)

92
96
96
94
94
94
94
96
96
98
96
96
94
92
94
92
96
96
94
96
96
96
96
96

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1024

Ozone (du)

281
279
280
280
284
287
290
290
291
291
297
303
306
302
299
297
298
294
286
288
289
290
290
287

Wednesday 24

Waxing Crescent 19%

13:13

19:31

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
06 Bad
07 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:36. Moon - Rise: 13:13, Set: 19:31. Civil Dark: 14:59 - 10:14. Nautical Dark: 16:37 - 08:36. Astro Dark: 17:53 - 07:20

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
85
91
79
41
40
89
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

76
55
32
46
76
83
79
67
52
21
24
40
64
49
65
67
91
100
100
100
100
95
91
86

Medium Clouds (% Sky Obscured)

60
88
100
100
85
65
0
0
32
41
40
30
89
100
62
100
100
100
92
64
79
96
92
90

High Clouds (% Sky Obscured)

94
85
100
100
100
64
4
86
30
1
8
87
93
100
100
100
100
96
97
98
100
100
100
100

ISS Passover

Visibility (miles)

0
0
9
6
1
0
1
3
8
9
9
1
0
6
1
1
0
0
0
1
2
0
0
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
Snow
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain

Precipitation Probability (%)

16
25
33
49
39
37
39
31
12
10
38
70
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0.1
0
0
0
0
0
0
0
0.2
0.6
1
1.2
1.5
2
2.1
1.4
1.7
2.2
3.2
2.6
1.7

Wind Speed/Direction (mph)

2
1
1
1
4
7
9
12
16
21
20
12
12
17
16
15
15
13
14
15
15
15
17
18

Chance of Frost

Temperature (°C)

-5
-5
-5
-5
-5
-4
-1
-1
0
1
0
0
1
1
1
2
2
1
1
1
1
1
1
1

Feels Like (°C)

-8
-8
-8
-8
-8
-7
-5
-7
-7
-6
-3
-2
-4
-5
-3
-2
-2
-3
-4
-6
-6
-6
-8
-10

Dew Point (°C)

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

Relative Humidity (%)

94
90
85
85
89
94
94
86
81
77
81
91
96
86
94
98
98
98
96
92
93
94
98
96

Pressure (mb)

1024
1023
1021
1021
1020
1019
1018
1017
1016
1015
1015
1015
1014
1012
1011
1011
1010
1008
1007
1006
1004
1003
1002
1002

Ozone (du)

283
279
274
276
281
289
290
293
295
294
286
286
281
269
273
272
276
272
273
275
275
275
280
282

Thursday 25

Waxing Crescent 28%

12:41

21:37

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 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:37. Moon - Rise: 12:41, Set: 21:37. Civil Dark: 15:00 - 10:14. Nautical Dark: 16:38 - 08:36. Astro Dark: 17:54 - 07:20

Total Clouds (% Sky Obscured)

100
100
100
82
62
72
74
72
67
34
19
15
19
19
25
25
35
61
70
73
88
93
97
35

Low Clouds (% Sky Obscured)

86
85
85
62
30
22
26
26
24
19
11
3
8
14
20
20
31
61
68
70
87
93
97
26

Medium Clouds (% Sky Obscured)

34
42
45
50
45
40
30
23
17
15
8
4
5
6
8
6
5
4
4
3
2
2
1
0

High Clouds (% Sky Obscured)

42
69
12
2
10
44
49
50
46
0
0
4
5
0
0
0
0
0
0
0
0
34
8
5

ISS Passover

Visibility (miles)

0
1
1
1
2
9
9
9
9
9
8
9
9
9
9
9
8
0
0
1
0
1
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

Moderate Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
54
65
50
10
18
18
11
22
23
29
42
40
30
40
36
16

Precipitation Amount (mm)

2.6
1.9
1.2
2.5
1.6
0.7
1.3
0.8
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
17
17
17
17
17
18
19
21
23
25
25
25
23
21
20
18
17
16
14
12
12
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
91
89
88
84
86
84
83
84
84
86
83
84
86
89
92
96
98
98
98
94
94
93
94

Pressure (mb)

1002
1003
1004
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1017
1017
1017
1017
1017
1017
1018

Ozone (du)

281
282
282
282
281
278
276
275
272
269
268
265
262
262
259
256
254
252
250
244
238
236
240
244

Friday 26

Waxing Crescent 38%

12:16

23:36

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
06 Bad
07 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:37. Moon - Rise: 12:16, Set: 23:36. Civil Dark: 15:01 - 10:13. Nautical Dark: 16:39 - 08:36. Astro Dark: 17:55 - 07:20

Total Clouds (% Sky Obscured)

99
99
100
66
100
99
92
98
100
100
98
80
85
93
100
100
99
99
95
91
87
87
87
87

Low Clouds (% Sky Obscured)

99
99
100
66
100
99
91
93
100
100
94
27
33
51
69
70
73
75
76
77
78
80
81
83

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
50
62
75
72
69
66
56
45
34
36
39
42

High Clouds (% Sky Obscured)

4
2
0
1
1
6
10
41
22
30
43
71
80
90
100
100
99
99
67
33
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
5
4
2
9
9
9
9
9
9
9
7
5
3
2
1
0
0
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

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

27
24
14
10
11
12
23
25
20
33
34
23
30
37
45
61
70
91
95
95
77
75
72
64

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.8
0.7
0.4
0.4
0.4
0.3

Wind Speed/Direction (mph)

10
10
10
9
10
10
11
10
9
8
8
7
7
6
8
9
11
16
23
23
24
26
26
26

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
-1
-1
-1
0
-1
-1
-2
-2
-2
-2
-1
-1
-3
-4
-5
-5
-4
-4
-7
-8
-11
-11
-12

Dew Point (°C)

2
2
2
2
2
2
1
0
-0
-1
0
1
1
-0
-1
-0
-1
-1
-1
-2
-3
-5
-5
-5

Relative Humidity (%)

94
94
94
94
98
98
94
89
88
84
88
91
91
91
88
88
88
89
91
89
87
87
86
87

Pressure (mb)

1019
1019
1019
1018
1018
1018
1017
1016
1016
1015
1014
1013
1012
1009
1006
1004
1003
1002
1001
1001
1001
1001
1000
1000

Ozone (du)

244
245
247
251
253
254
259
262
265
268
271
277
278
279
280
281
294
306
318
338
357
376
386
397

Saturday 27

First Quarter 49%

11:54

01:37

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
06 Bad
07 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:38. Moon - Rise: 11:54, Set: 01:37. Civil Dark: 15:03 - 10:13. Nautical Dark: 16:40 - 08:36. Astro Dark: 17:56 - 07:20

Total Clouds (% Sky Obscured)

81
74
68
78
87
96
97
97
97
98
99
100
88
77
65
52
38
24
45
65
86
90
95
100

Low Clouds (% Sky Obscured)

76
70
63
72
82
88
86
89
89
93
95
100
87
74
61
47
32
19
36
51
64
63
64
66

Medium Clouds (% Sky Obscured)

34
27
20
25
30
34
33
32
36
35
42
34
29
23
17
12
6
0
1
1
2
2
2
2

High Clouds (% Sky Obscured)

0
0
0
1
2
2
2
2
2
6
9
12
8
4
0
0
0
0
25
50
75
83
92
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

74
78
78
85
88
87
95
95
95
95
95
95
95
95
70
69
59
27
42
43
33
40
37
29

Precipitation Amount (mm)

0.4
0.5
0.4
0.5
0.6
0.5
0.7
0.8
0.9
1
1.2
1.2
1.2
0.9
0.3
0.3
0.2
0
0
0.1
0
0
0
0

Wind Speed/Direction (mph)

26
26
26
26
28
30
32
30
28
28
26
24
23
22
21
20
18
15
12
12
11
11
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-13
-15
-15
-15
-15
-15
-16
-18
-19
-19
-20
-21
-15
-14
-12
-11
-10
-9
-13
-12
-12
-11
-11

Dew Point (°C)

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

Relative Humidity (%)

86
87
87
89
87
87
85
89
89
89
90
90
90
92
90
90
90
92
94
92
92
92
92
94

Pressure (mb)

999
999
1000
1000
1000
1001
1001
1002
1002
1003
1004
1005
1006
1009
1011
1013
1015
1017
1019
1020
1021
1022
1023
1024

Ozone (du)

408
406
404
402
401
399
398
396
394
392
389
387
384
377
369
362
354
346
338
336
334
331
318
305

Sunday 28

Waxing Gibbous 60%

11:29

03:49

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: 12:38. Moon - Rise: 11:29, Set: 03:49. Civil Dark: 15:04 - 10:12. Nautical Dark: 16:41 - 08:35. Astro Dark: 17:57 - 07:20

Total Clouds (% Sky Obscured)

97
95
92
95
97
100
100
100
100
97
95
93
93
95
96
96
96
95

Low Clouds (% Sky Obscured)

62
59
55
62
70
79
76
73
71
77
81
84
84
82
81
82
82
83

Medium Clouds (% Sky Obscured)

3
4
5
5
5
4
4
6
7
6
5
0
6
15
23
23
22
22

High Clouds (% Sky Obscured)

89
78
64
69
74
79
75
70
63
57
49
38
29
19
10
8
5
2

ISS Passover

Visibility (miles)

1
1
1
1
1
1
0
3
6
9
7
4
2
1
1
1
4
6

Fog (%)

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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Very Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

37
33
20
25
26
25
40
53
65
73
75
80
92
88
75
90
80
69

Precipitation Amount (mm)

0
0
0
0
0
0
0.1
0.2
0.3
0.4
0.4
0.3
0.6
0.5
0.3
0.7
0.5
0.3

Wind Speed/Direction (mph)

8
7
6
5
4
3
4
5
7
11
15
21
26
30
33
37
39
40

Chance of Frost

Temperature (°C)

-6
-7
-8
-9
-9
-9
-9
-8
-8
-7
-6
-4
-2
-1
0
1
1
1

Feels Like (°C)

-10
-11
-10
-8
-9
-10
-11
-14
-15
-17
-16
-15
-13
-9
-9
-10
-10
-10

Dew Point (°C)

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

Relative Humidity (%)

96
94
92
92
92
94
94
90
85
82
84
89
91
91
91
91
89
86

Pressure (mb)

1024
1024
1025
1025
1024
1023
1022
1020
1018
1016
1014
1012
1011
1010
1009
1009
1008
1008

Ozone (du)

292
289
286
283
281
280
278
280
281
283
280
277
275
276
277
278
278
277

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

Generated: 22/12/25 08:15:36. Forecast: 22/12/25 to 28/12/25. Timezone: UTC+2.00