Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 31

Waxing Gibbous 92%

13:18

04:38

03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
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

Sun - Rise: 07:32, Set: 16:23, Transit: 11:57. Moon - Rise: 13:18, Set: 04:38. Civil Dark: 16:56 - 06:59. Nautical Dark: 17:33 - 06:21. Astro Dark: 18:09 - 05:46

Total Clouds (% Sky Obscured)

98
100
94
93
93
74
47
21
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

84
84
53
44
42
2
2
1
2
10
20
35
40
40
45
38
75
83
81
88
96
96
94
95

Medium Clouds (% Sky Obscured)

94
69
68
46
42
45
3
8
99
100
100
100
100
100
100
98
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

11
4
55
50
25
13
20
3
96
100
94
76
64
74
100
97
100
96
85
58
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
4
8
9
7
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
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
3
1
0
0
0
0
0
0
1
1
3
4
4
6
10
13
34
60
77
87
81
77

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.6
0.5
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-19
-19
-19
-19
-18
-18
-17
-15
-13
-13
-12
-12
-12
-12
-12
-12
-13
-12
-12
-13
-12
-13
-13
-14

Dew Point (°C)

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

Relative Humidity (%)

71
68
66
64
64
66
67
66
61
60
62
63
67
73
82
88
92
90
92
92
94
92
92
92

Pressure (mb)

1001
1001
1001
1001
1002
1002
1003
1003
1003
1002
1002
1002
1002
1002
1003
1003
1003
1002
1002
1001
1000
1000
999
1000

Ozone (du)

413
400
395
393
393
385
386
398
407
416
416
416
413
412
409
415
413
417
421
423
427
427
436
436

Thursday 1

Waxing Gibbous 98%

14:10

06:00

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

Sun - Rise: 07:32, Set: 16:23, Transit: 11:58. Moon - Rise: 14:10, Set: 06:00. Civil Dark: 16:57 - 06:59. Nautical Dark: 17:34 - 06:22. Astro Dark: 18:10 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
98
98
85
77
20
14
12
59
81
72
70
67
6
5
7
12
33
60
64
60
82

Low Clouds (% Sky Obscured)

99
98
93
95
94
58
53
20
14
12
34
48
13
5
5
0
1
2
2
12
15
15
20
64

Medium Clouds (% Sky Obscured)

100
100
100
86
86
52
2
0
0
0
0
4
48
45
22
0
0
0
0
0
0
0
0
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
3
5
4
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
9
9
9
9
9
9
9
9
8
9
9
9
9
9
9
9
4
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

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

Precipitation Probability (%)

76
79
60
42
33
17
6
1
0
0
0
0
0
0
0
0
0
0
0
0
0
5
13
3

Precipitation Amount (mm)

0.4
0.5
0.2
0.1
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
10
11
12
11
11
13
14
14
13
12
11
9
7
5
4
4
3
2
2
3
3
3
3

Chance of Frost

Temperature (°C)

-10
-10
-11
-12
-12
-13
-14
-15
-14
-14
-14
-14
-14
-15
-16
-17
-18
-19
-19
-19
-19
-19
-19
-18

Feels Like (°C)

-15
-16
-18
-18
-19
-20
-21
-22
-21
-20
-19
-20
-20
-20
-20
-22
-21
-21
-21
-21
-22
-23
-23
-22

Dew Point (°C)

-11
-12
-12
-13
-14
-16
-17
-18
-18
-19
-18
-18
-18
-18
-19
-21
-22
-22
-22
-22
-22
-21
-21
-20

Relative Humidity (%)

90
90
88
88
86
78
77
74
70
68
68
70
73
75
73
74
74
75
77
78
79
80
83
84

Pressure (mb)

1000
1000
1001
1003
1004
1005
1007
1008
1008
1007
1008
1008
1009
1009
1009
1010
1010
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

416
402
396
387
382
370
362
355
347
343
340
350
359
367
378
385
385
376
372
367
370
376
374
383

Friday 2

Waxing Gibbous 100%

15:17

07:11

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
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:32, Set: 16:24, Transit: 11:58. Moon - Rise: 15:17, Set: 07:11. Civil Dark: 16:58 - 06:59. Nautical Dark: 17:35 - 06:22. Astro Dark: 18:11 - 05:46

Total Clouds (% Sky Obscured)

98
89
74
96
96
93
77
78
84
95
92
92
91
75
95
99
100
100
100
90
54
44
59
76

Low Clouds (% Sky Obscured)

69
71
48
86
79
59
35
48
62
72
70
81
80
73
95
99
100
100
99
85
53
29
37
39

Medium Clouds (% Sky Obscured)

38
6
14
14
30
32
50
11
16
24
25
26
27
0
0
0
16
33
49
33
16
2
36
66

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
6
1
0

ISS Passover

Visibility (miles)

0
0
0
0
0
1
1
5
9
9
9
9
8
8
6
1
1
1
8
8
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
2
1
1
1
2
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 (%)

3
12
6
14
3
14
2
3
1
4
4
7
6
5
14
25
17
22
16
17
15
12
12
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-20
-20
-20
-20
-20
-20
-18
-16
-14
-13
-13
-13
-12
-13
-14
-14
-14
-14
-15
-16
-17
-18
-19
-19

Relative Humidity (%)

85
85
84
86
84
85
81
79
73
71
72
74
80
85
86
88
85
83
78
78
76
74
74
75

Pressure (mb)

1009
1008
1008
1008
1008
1007
1007
1007
1007
1005
1005
1005
1005
1006
1006
1006
1006
1007
1007
1007
1008
1008
1008
1009

Ozone (du)

384
376
370
372
392
392
364
350
354
356
357
360
367
373
373
387
397
398
393
390
372
352
349
352

Saturday 3

Full Moon 99%

16:35

08:08

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
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:32, Set: 16:25, Transit: 11:59. Moon - Rise: 16:35, Set: 08:08. Civil Dark: 16:59 - 06:59. Nautical Dark: 17:36 - 06:22. Astro Dark: 18:11 - 05:46

Total Clouds (% Sky Obscured)

82
75
97
96
96
97
96
93
92
91
92
93
96
86
36
74
75
83
92
87
85
87
89
92

Low Clouds (% Sky Obscured)

42
47
91
93
94
97
96
93
92
91
92
93
96
80
30
48
51
24
76
86
85
82
81
76

Medium Clouds (% Sky Obscured)

82
71
54
53
68
17
2
0
0
0
0
0
0
3
4
45
55
61
53
50
52
60
60
70

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)

9
9
1
0
0
1
5
9
9
9
9
9
9
9
9
9
9
9
9
8
6
6
4
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
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
9
22
25
25
14
15
13
11
7
7
5
2
2
2
0
0
0
0
2
3
10
16
27

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
75
78
81
82
80
77
70
68
67
68
69
73
74
78
79
79
80
82
84
84
84
85
85

Pressure (mb)

1009
1009
1009
1010
1010
1011
1012
1013
1013
1013
1013
1013
1014
1014
1015
1016
1016
1016
1016
1017
1017
1017
1017
1017

Ozone (du)

352
352
356
357
363
375
379
376
376
369
367
368
369
367
366
366
365
366
363
362
369
371
370
369

Sunday 4

Waning Gibbous 95%

17:57

08:51

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
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:32, Set: 16:26, Transit: 11:59. Moon - Rise: 17:57, Set: 08:51. Civil Dark: 17:00 - 06:59. Nautical Dark: 17:37 - 06:22. Astro Dark: 18:12 - 05:46

Total Clouds (% Sky Obscured)

89
86
78
73
72
70
70
65
70
70
86
89
89
86
80
65
70
74
59
64
53
83
82
70

Low Clouds (% Sky Obscured)

73
55
33
12
14
15
5
5
5
10
81
80
75
68
61
30
25
0
0
6
12
18
33
51

Medium Clouds (% Sky Obscured)

60
71
53
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
8
9
17
26

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
33
63

ISS Passover

Visibility (miles)

1
1
1
3
4
5
1
0
0
0
0
0
0
0
3
6
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 (%)

24
13
20
7
6
7
14
18
20
20
29
29
29
25
23
20
17
11
2
6
6
3
9
9

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
3
3
3
3
3
3
3
3
4
6
5
4
4
4
4
3
2
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-18
-18
-18
-19
-19
-19
-17
-15
-14
-14
-13
-14
-14
-14
-15
-16
-17
-17
-18
-19
-19
-19
-19
-19

Relative Humidity (%)

87
88
86
86
87
84
82
86
84
83
85
86
88
92
86
83
79
79
79
79
78
78
76
78

Pressure (mb)

1017
1017
1018
1018
1019
1019
1019
1020
1020
1019
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

370
372
374
377
382
381
370
354
343
340
340
340
340
339
340
341
342
342
342
341
342
343
344
347

Monday 5

Waning Gibbous 89%

19:18

09:22

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
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:32, Set: 16:27, Transit: 12:00. Moon - Rise: 19:18, Set: 09:22. Civil Dark: 17:01 - 06:59. Nautical Dark: 17:38 - 06:22. Astro Dark: 18:13 - 05:46

Total Clouds (% Sky Obscured)

61
56
51
49
66
86
99
98
98
96
96
97
97
98
99
100
99
99
99
82
66
45
24
18

Low Clouds (% Sky Obscured)

58
52
48
44
62
82
96
86
78
69
68
67
66
76
87
92
95
98
99
80
61
39
24
16

Medium Clouds (% Sky Obscured)

35
34
32
31
31
31
31
36
31
27
29
31
29
23
22
31
41
47
43
27
16
10
0
0

High Clouds (% Sky Obscured)

61
56
51
49
49
26
0
33
67
96
95
90
95
95
85
85
85
80
60
35
0
5
5
5

ISS Passover

Visibility (miles)

9
9
8
8
7
7
8
9
9
9
9
9
9
9
8
6
5
6
8
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

1
2
3
1
16
23
29
29
30
28
24
18
5
11
14
17
33
44
48
67
84
95
95
91

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.3
0.6
0.7
0.7
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-17
-17
-17
-17
-16
-14
-12
-10
-9
-8
-8
-8
-9
-9
-10
-10
-10
-11
-11
-12
-12
-12
-11
-11

Feels Like (°C)

-20
-20
-19
-20
-20
-18
-18
-18
-17
-16
-15
-13
-13
-14
-14
-14
-14
-15
-16
-16
-15
-14
-12
-14

Dew Point (°C)

-20
-20
-19
-19
-18
-16
-15
-13
-12
-12
-12
-12
-12
-12
-12
-12
-13
-13
-14
-14
-15
-14
-13
-13

Relative Humidity (%)

79
81
82
83
83
83
79
78
77
74
72
74
78
81
81
83
83
83
81
81
81
83
83
81

Pressure (mb)

1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1015
1015
1014
1013
1013
1012

Ozone (du)

349
352
351
350
349
356
363
370
368
365
363
362
361
360
360
361
361
363
364
366
366
365
365
367

Tuesday 6

Waning Gibbous 86%

20:34

09:46

Sun - Rise: 07:32, Set: 16:29, Transit: 12:00. Moon - Rise: 20:34, Set: 09:46. Civil Dark: 17:02 - 06:58. Nautical Dark: 17:39 - 06:22. Astro Dark: 18:14 - 05:46

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Hemmingford, Montérégie, Canada (45.05,-73.58)

Generated: 31/12/25 03:05:31. Forecast: 31/12/25 to 06/01/26. Timezone: UTC-5.00