Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 0%

07:27

15:15

20 Bad
21 Bad
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

Sun - Rise: 07:21, Set: 16:02, Transit: 11:42. Moon - Rise: 07:27, Set: 15:15. Civil Dark: 16:36 - 06:47. Nautical Dark: 17:14 - 06:09. Astro Dark: 17:50 - 05:33

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
95
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

4
4
5
22
12
34
49
69
44
49
48
58
68
73
70
78
91
93
93
100
97
83
100
100

Medium Clouds (% Sky Obscured)

33
35
40
72
64
100
80
95
98
100
96
100
100
100
100
94
100
100
100
100
100
100
45
22

High Clouds (% Sky Obscured)

100
94
100
100
100
77
71
80
100
100
100
100
100
100
100
100
100
35
99
3
0
70
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
0
9
9
9
9
9
9
9
4
6
0
0
0
2

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
93
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Snow
Snow
None

Precipitation Probability (%)

0
0
0
1
3
3
37
21
20
16
27
16
28
46
52
49
37
95
95
95
95
95
51
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.4
3.2
3.3
3.3
2.4
0.2
0

Wind Speed/Direction (mph)

9
10
9
9
10
10
11
9
7
9
9
9
12
15
17
20
20
20
18
15
14
13
13
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
78
81
80
77
79
79
89
96
94
96
96
96
87
87
84
82
80
90
88
98
96
94
87

Pressure (mb)

1016
1015
1015
1013
1012
1011
1011
1009
1007
1006
1004
1002
1000
998
995
992
988
985
983
984
987
987
987
988

Ozone (du)

304
302
301
297
296
297
299
297
299
299
297
300
299
303
306
305
310
318
321
323
327
331
340
348

Friday 19

New Moon 1%

08:19

16:11

20 Bad
21 Bad
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 Good
11 Good
12 OK
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 07:22, Set: 16:02, Transit: 11:42. Moon - Rise: 08:19, Set: 16:11. Civil Dark: 16:36 - 06:48. Nautical Dark: 17:14 - 06:10. Astro Dark: 17:51 - 05:33

Total Clouds (% Sky Obscured)

52
98
96
96
100
100
100
100
100
100
100
100
93
93
12
6
26
40
58
56
93
93
100
100

Low Clouds (% Sky Obscured)

47
97
95
94
100
100
100
100
100
100
100
100
89
84
12
3
15
6
2
4
8
58
62
57

Medium Clouds (% Sky Obscured)

38
48
42
32
33
18
3
0
0
0
0
0
0
0
12
3
22
36
57
56
87
89
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
38
43
43
65
62
100

ISS Passover

Visibility (miles)

9
7
0
0
0
0
0
0
0
0
0
0
1
6
9
9
9
9
9
9
9
9
9
9

Fog (%)

1
1
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

28
63
73
66
64
61
57
50
41
31
24
19
17
1
0
0
0
0
0
0
0
0
5
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

18
17
17
18
19
20
21
21
20
20
20
18
16
15
13
12
10
11
9
8
4
4
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-11
-12
-13
-13
-17
-18
-19
-19
-19
-18
-17
-17
-16
-13
-12
-12
-12
-11
-11
-13
-12
-11

Dew Point (°C)

-6
-6
-5
-5
-6
-7
-10
-11
-12
-12
-13
-13
-13
-13
-13
-13
-13
-12
-12
-11
-11
-10
-10
-10

Relative Humidity (%)

74
79
90
90
89
89
87
87
85
85
83
81
81
78
75
74
68
70
74
77
83
88
87
83

Pressure (mb)

988
989
990
990
992
994
997
1000
1003
1005
1008
1011
1013
1016
1017
1017
1016
1016
1018
1018
1018
1018
1017
1015

Ozone (du)

354
360
364
378
383
395
405
405
396
398
385
389
390
381
370
371
367
361
355
350
342
338
335
334

Saturday 20

Waxing Crescent 3%

09:01

17:15

20 Bad
21 Bad
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

Sun - Rise: 07:22, Set: 16:03, Transit: 11:42. Moon - Rise: 09:01, Set: 17:15. Civil Dark: 16:37 - 06:48. Nautical Dark: 17:15 - 06:10. Astro Dark: 17:51 - 05:34

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
96
70
62
73
89
98
100
96
97
88
90
87
88
89
91
93
96

Low Clouds (% Sky Obscured)

61
73
100
97
94
100
100
96
57
45
60
89
98
100
79
91
86
84
85
86
89
91
93
96

Medium Clouds (% Sky Obscured)

100
100
100
100
100
85
50
50
55
3
0
0
60
65
49
22
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
50
44
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
9
1
2
2
1
1
0
0
9
9
1
0
1
0
0
9
1
9
4
4
9
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
Snow
Snow
None
Snow
Snow
Snow
Snow
None
None
None
None
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

27
50
51
37
49
75
72
67
29
9
18
26
44
72
81
34
20
23
10
15
17
18
27
27

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
6
7
6
5
8
9
11
11
11
12
12
12
13
15
16
17
17
17
16
16
16
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-9
-9
-8
-7
-8
-8
-7
-8
-7
-8
-8
-7
-8
-7
-12
-13
-14
-15
-16
-16
-16
-17
-17

Dew Point (°C)

-9
-8
-6
-5
-5
-6
-5
-3
-4
-4
-4
-4
-3
-3
-3
-6
-9
-9
-12
-12
-12
-12
-12
-12

Relative Humidity (%)

87
85
89
91
89
87
86
94
91
86
84
87
92
89
92
90
77
79
70
74
75
77
81
86

Pressure (mb)

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

Ozone (du)

335
335
335
335
337
338
341
339
340
344
353
356
358
359
358
356
357
362
364
370
381
388
388
372

Sunday 21

Waxing Crescent 7%

09:35

18:25

20 Bad
21 Bad
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

Sun - Rise: 07:23, Set: 16:03, Transit: 11:43. Moon - Rise: 09:35, Set: 18:25. Civil Dark: 16:37 - 06:49. Nautical Dark: 17:15 - 06:11. Astro Dark: 17:52 - 05:34

Total Clouds (% Sky Obscured)

98
100
99
97
96
95
95
94
94
92
90
91
92
94
91
85
81
79
72
65
59
54
43
53

Low Clouds (% Sky Obscured)

98
100
99
97
96
95
95
94
94
92
90
89
88
88
79
72
66
66
68
60
59
54
43
53

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
7
10
14
8

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

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

Precipitation Probability (%)

32
30
34
34
37
34
33
28
26
24
24
23
13
21
12
12
8
6
5
1
2
8
0
0

Precipitation Amount (mm)

0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
14
14
14
14
14
14
14
14
14
14
13
13
13
13
13
13
13
12
12
11
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
86
86
88
86
86
86
84
83
81
83
83
81
81
79
78
76
78
79
79
83
84
86
86

Pressure (mb)

1014
1015
1016
1017
1017
1019
1020
1021
1022
1024
1025
1026
1027
1028
1029
1029
1029
1030
1030
1031
1031
1031
1032
1032

Ozone (du)

364
356
356
360
365
371
376
378
372
364
362
362
366
369
369
366
377
376
373
373
369
372
373
379

Monday 22

Waxing Crescent 13%

10:01

19:36

20 Bad
21 Bad
22 Bad
23 OK
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

Sun - Rise: 07:23, Set: 16:04, Transit: 11:43. Moon - Rise: 10:01, Set: 19:36. Civil Dark: 16:38 - 06:49. Nautical Dark: 17:16 - 06:11. Astro Dark: 17:52 - 05:35

Total Clouds (% Sky Obscured)

73
83
87
35
47
51
96
95
96
98
100
98
96
96
98
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

73
83
86
35
45
50
55
57
58
58
75
80
86
95
95
94
93
88
87
85
86
88
91
96

Medium Clouds (% Sky Obscured)

4
0
10
17
23
24
25
30
94
96
98
93
90
86
96
98
100
100
100
100
97
94
92
74

High Clouds (% Sky Obscured)

0
0
0
0
0
1
15
15
22
23
29
33
31
50
85
78
67
44
22
0
5
14
14
9

ISS Passover

Visibility (miles)

3
4
4
8
9
9
9
9
9
9
9
9
7
5
3
2
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
Snow
Snow
Snow
Snow
Snow
Snow
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

1
1
9
13
18
26
35
45
47
48
49
67
53
27
37
49
60
61
65
66
60
54
53
60

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-14
-14
-14
-13
-13
-13
-13
-13
-14
-13
-11
-11
-9
-8
-6
-6
-5
-4
-4
-5
-5
-5
-5
-5

Feels Like (°C)

-19
-19
-19
-18
-16
-16
-16
-18
-18
-17
-16
-15
-14
-14
-13
-13
-12
-12
-8
-8
-8
-8
-9
-9

Dew Point (°C)

-16
-16
-16
-15
-16
-16
-16
-16
-16
-16
-15
-14
-12
-11
-9
-8
-6
-4
-5
-5
-6
-6
-6
-6

Relative Humidity (%)

84
84
84
84
83
81
79
81
79
78
76
76
78
79
79
84
89
94
94
94
94
94
94
94

Pressure (mb)

1032
1031
1030
1030
1029
1028
1028
1027
1026
1025
1025
1024
1023
1022
1021
1020
1018
1017
1016
1016
1016
1015
1015
1014

Ozone (du)

367
369
363
358
354
352
348
342
338
337
334
336
335
335
334
337
339
342
348
354
360
370
380
390

Tuesday 23

Waxing Crescent 21%

10:23

No Set

20 Bad
21 Bad
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

Sun - Rise: 07:24, Set: 16:04, Transit: 11:44. Moon - Rise: 10:23, Set: No Set. Civil Dark: 16:39 - 06:49. Nautical Dark: 17:17 - 06:11. Astro Dark: 17:53 - 05:35

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
98
97
98
98
99
99
99
99
99
100
100
100
100
100
100
100
100
86

Low Clouds (% Sky Obscured)

97
98
98
98
99
96
92
88
89
91
93
93
94
95
97
98
100
100
100
100
100
100
100
82

Medium Clouds (% Sky Obscured)

55
37
41
48
52
57
64
65
61
56
50
43
27
13
7
4
1
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

5
0
7
17
45
33
17
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
1
1
1
1
1
2
3
4
4
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
0
0

Precipitation Type

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

Precipitation Probability (%)

66
72
72
74
76
78
78
75
70
62
53
51
46
38
31
25
18
14
8
3
8
9
9
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-5
-5
-4
-4
-4
-4
-6
-8
-9
-10
-10
-11
-11
-11
-11
-10
-10
-10
-11
-12
-12
-13
-14
-15

Feels Like (°C)

-10
-9
-9
-10
-10
-10
-10
-11
-11
-11
-11
-11
-17
-17
-17
-18
-17
-18
-17
-17
-18
-19
-19
-20

Dew Point (°C)

-6
-5
-5
-5
-5
-5
-7
-9
-11
-12
-12
-13
-13
-13
-13
-13
-12
-13
-13
-14
-15
-15
-16
-17

Relative Humidity (%)

94
94
96
94
94
94
92
88
87
86
85
83
83
81
81
81
83
83
83
83
81
83
83
82

Pressure (mb)

1014
1013
1012
1012
1012
1011
1012
1013
1013
1014
1016
1017
1018
1019
1020
1021
1021
1022
1023
1024
1026
1027
1028
1029

Ozone (du)

393
396
399
398
396
394
385
376
367
368
370
371
369
367
365
365
365
365
366
367
368
371
374
376

Wednesday 24

Waxing Crescent 30%

10:42

20:47

20 Bad
21 Bad
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

Sun - Rise: 07:24, Set: 16:05, Transit: 11:44. Moon - Rise: 10:42, Set: 20:47. Civil Dark: 16:39 - 06:50. Nautical Dark: 17:17 - 06:12. Astro Dark: 17:53 - 05:36

Total Clouds (% Sky Obscured)

67
50
62
70
80
88
95
100
96
91
87
91
96
100
100
100
100

Low Clouds (% Sky Obscured)

65
50
62
70
80
85
82
80
67
57
46
37
45
53
57
49
35

Medium Clouds (% Sky Obscured)

0
0
0
0
0
22
47
71
72
73
76
81
85
89
85
80
75

High Clouds (% Sky Obscured)

0
0
9
23
34
57
79
100
69
38
13
8
6
12
43
76
98

ISS Passover

Visibility (miles)

3
3
2
2
1
1
4
6
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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
2
3
5
7
7
5
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-17
-17
-18
-18
-17
-17
-17
-16
-16
-16
-15
-15
-13
-11
-10
-9
-7

Feels Like (°C)

-22
-22
-22
-22
-22
-23
-22
-21
-21
-21
-19
-19
-19
-18
-18
-18
-17

Dew Point (°C)

-19
-19
-20
-20
-19
-19
-19
-18
-18
-18
-17
-17
-16
-15
-15
-14
-12

Relative Humidity (%)

83
84
84
85
85
86
84
84
82
82
82
81
76
72
68
67
67

Pressure (mb)

1029
1029
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1028
1028
1027
1026
1025

Ozone (du)

373
370
366
366
366
366
366
365
365
365
365
365
365
365
364
360
356

Forecast for Saint-Romain, Estrie, Canada (45.79,-71.09)

Generated: 18/12/25 19:41:29. Forecast: 18/12/25 to 24/12/25. Timezone: UTC-5.00