Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 24

Waxing Crescent 36%

09:51

23:34

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

Sun - Rise: 07:12, Set: 16:52, Transit: 12:02. Moon - Rise: 09:51, Set: 23:34. Civil Dark: 17:23 - 06:41. Nautical Dark: 17:57 - 06:07. Astro Dark: 18:31 - 05:32

Total Clouds (% Sky Obscured)

0
0
0
2
2
4
35
4
11
23
40
20
55
28
96
100
100
100
100
100
94
100
100
100

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
1
3
2
55
88
100
100
100
100
94
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
1
20
3
11
23
40
20
55
23
92
100
100
100
99
71
71
81
63
76

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)

6
5
4
8
8
8
9
9
10
10
9
6
5
5
4
4
4
4
4
4
4
3
4
3

Chance of Frost

Temperature (°C)

-24
-24
-24
-20
-19
-17
-16
-16
-16
-16
-16
-17
-17
-18
-18
-18
-19
-18
-18
-18
-18
-18
-18
-18

Feels Like (°C)

-28
-27
-28
-24
-22
-21
-20
-20
-20
-20
-21
-22
-21
-23
-21
-23
-23
-23
-23
-23
-23
-22
-23
-23

Dew Point (°C)

-30
-30
-31
-27
-27
-26
-26
-26
-26
-26
-25
-24
-24
-24
-24
-24
-25
-25
-25
-24
-24
-25
-25
-25

Relative Humidity (%)

53
52
49
51
47
45
44
42
41
41
47
54
57
60
62
60
58
58
57
58
57
57
57
55

Pressure (mb)

1034
1035
1036
1036
1037
1037
1036
1036
1036
1036
1037
1037
1038
1038
1039
1039
1039
1039
1039
1039
1039
1039
1039
1038

Ozone (du)

336
336
325
319
319
311
305
307
306
299
298
295
292
294
295
296
296
298
297
297
297
295
295
295

Sunday 25

First Quarter 47%

10:14

00:50

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: 07:11, Set: 16:53, Transit: 12:02. Moon - Rise: 10:14, Set: 00:50. Civil Dark: 17:24 - 06:41. Nautical Dark: 17:59 - 06:06. Astro Dark: 18:32 - 05:32

Total Clouds (% Sky Obscured)

100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
95
96
95
96

Low Clouds (% Sky Obscured)

4
22
35
37
79
93
99
99
100
100
100
100
100
100
100
100
99
100
99
99
95
96
94
94

Medium Clouds (% Sky Obscured)

100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
91
84
57
93

High Clouds (% Sky Obscured)

100
92
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
25
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
5
1
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
0
0
0
0
0
0
0
0
1
2

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
6
41
79
95
95
95
95
95
95
95
95
95
95
95
95
95
72
67
60

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.6
1
1
1.3
1.3
1.5
1.5
1.4
1.2
0.9
0.9
0.8
0.6
0.3
0.3
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-23
-23
-23
-22
-21
-20
-20
-20
-19
-18
-18
-19
-18
-19
-18
-17
-18
-17
-18
-18
-18
-18
-17
-17

Dew Point (°C)

-25
-25
-25
-25
-25
-25
-25
-25
-21
-17
-17
-17
-17
-16
-16
-16
-15
-15
-15
-15
-15
-14
-14
-14

Relative Humidity (%)

56
56
54
53
49
48
44
46
63
81
84
86
86
86
88
88
88
88
88
86
86
90
88
86

Pressure (mb)

1039
1038
1038
1038
1038
1036
1034
1033
1032
1031
1030
1028
1027
1026
1025
1023
1021
1019
1018
1017
1015
1013
1012
1011

Ozone (du)

294
293
291
291
290
288
286
283
281
279
282
286
287
287
288
288
288
290
291
292
292
293
297
297

Monday 26

Waxing Gibbous 59%

10:41

02:09

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 OK
01 OK
02 OK
03 Good
04 OK
05 OK

Sun - Rise: 07:10, Set: 16:55, Transit: 12:03. Moon - Rise: 10:41, Set: 02:09. Civil Dark: 17:25 - 06:40. Nautical Dark: 18:00 - 06:05. Astro Dark: 18:33 - 05:31

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
99
98
97
99
100
100
100
100
100
100
90
84
38
27
18
7
6
4

Low Clouds (% Sky Obscured)

96
95
95
97
98
98
97
95
95
97
98
98
99
98
95
92
79
80
30
23
14
3
3
2

Medium Clouds (% Sky Obscured)

98
100
100
99
100
100
97
92
90
96
100
100
100
100
100
100
84
58
38
27
18
3
3
2

High Clouds (% Sky Obscured)

0
0
0
0
0
25
15
15
1
23
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
1
9
8
9
9
9
9
9
9
9

Fog (%)

4
5
4
3
7
6
2
1
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
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

63
72
70
70
76
89
84
75
63
64
76
84
77
74
60
42
30
21
10
8
8
4
7
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-12
-12
-11
-11
-10
-10
-9
-8
-8
-8
-8
-8
-8
-9
-9
-10
-12
-13
-13
-14
-15
-15
-15
-16

Feels Like (°C)

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

Dew Point (°C)

-13
-13
-13
-12
-12
-11
-11
-10
-10
-9
-9
-9
-9
-10
-10
-13
-15
-16
-17
-17
-19
-19
-20
-20

Relative Humidity (%)

88
88
88
88
87
87
87
87
87
88
90
94
94
92
92
78
75
74
76
74
71
70
67
67

Pressure (mb)

1010
1010
1010
1009
1008
1007
1006
1006
1005
1005
1005
1005
1005
1006
1006
1007
1008
1009
1010
1010
1012
1012
1013
1014

Ozone (du)

299
303
307
313
315
321
322
322
324
327
333
346
356
365
372
380
387
391
395
398
405
409
411
415

Tuesday 27

Waxing Gibbous 70%

11:16

03:27

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

Sun - Rise: 07:09, Set: 16:56, Transit: 12:03. Moon - Rise: 11:16, Set: 03:27. Civil Dark: 17:27 - 06:39. Nautical Dark: 18:01 - 06:05. Astro Dark: 18:35 - 05:30

Total Clouds (% Sky Obscured)

4
4
11
13
73
89
100
100
100
100
94
88
80
56
41
31
30
26
24
34
45
55
38
22

Low Clouds (% Sky Obscured)

1
1
5
4
67
85
85
90
90
85
88
88
80
21
17
13
13
8
3
11
23
41
31
22

Medium Clouds (% Sky Obscured)

2
3
4
7
15
27
40
40
51
74
70
83
80
43
25
18
22
25
24
17
9
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)

9
9
9
9
9
9
9
6
5
4
1
2
7
9
9
9
9
9
9
9
9
9
9
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
1
2
0
1
5
8
8
22
21
24
31
14
13
11
6
9
8
4
8
9
5
11
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)

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

Chance of Frost

Temperature (°C)

-17
-18
-16
-14
-13
-12
-10
-10
-9
-9
-9
-10
-12
-13
-14
-16
-18
-18
-19
-20
-21
-22
-23
-23

Feels Like (°C)

-20
-21
-19
-18
-17
-18
-16
-15
-15
-14
-13
-15
-17
-18
-18
-19
-20
-21
-21
-21
-23
-24
-25
-25

Dew Point (°C)

-22
-22
-20
-19
-18
-17
-16
-15
-15
-14
-12
-13
-14
-16
-17
-19
-20
-21
-21
-22
-23
-24
-25
-25

Relative Humidity (%)

66
70
71
70
66
63
63
62
62
68
80
83
80
78
77
78
80
82
81
81
78
78
78
77

Pressure (mb)

1015
1016
1017
1017
1017
1016
1016
1015
1015
1015
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017

Ozone (du)

428
435
429
431
426
415
409
410
412
417
421
421
420
416
412
411
406
405
395
395
402
401
403
405

Wednesday 28

Waxing Gibbous 81%

12:02

04:40

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

Sun - Rise: 07:08, Set: 16:57, Transit: 12:03. Moon - Rise: 12:02, Set: 04:40. Civil Dark: 17:28 - 06:38. Nautical Dark: 18:02 - 06:04. Astro Dark: 18:36 - 05:29

Total Clouds (% Sky Obscured)

6
7
8
7
28
29
32
30
27
6
8
12
14
11
9
6
14
24
33
42
47
50
49
43

Low Clouds (% Sky Obscured)

6
7
6
4
16
21
24
22
19
6
4
4
3
3
3
3
3
3
3
1
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
3
6
9
6
3
0
9
19
33
42
40
35
7
4

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)

7
6
6
8
9
9
9
9
9
9
9
9
9
9
9
9
8
8
7
7
7
7
7
7

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 (%)

3
6
6
1
2
2
0
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1

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)

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

Chance of Frost

Temperature (°C)

-22
-22
-19
-16
-13
-12
-11
-10
-10
-10
-11
-14
-17
-18
-18
-19
-20
-21
-22
-23
-23
-24
-25
-25

Feels Like (°C)

-24
-24
-22
-18
-15
-16
-16
-15
-16
-15
-14
-16
-19
-20
-20
-20
-20
-21
-22
-22
-25
-26
-27
-26

Dew Point (°C)

-25
-25
-22
-19
-17
-17
-17
-16
-16
-15
-15
-17
-19
-20
-21
-22
-23
-24
-25
-25
-26
-27
-28
-28

Relative Humidity (%)

78
77
80
78
73
67
63
64
64
66
72
81
81
81
80
80
77
77
77
77
76
74
74
74

Pressure (mb)

1017
1018
1018
1018
1018
1017
1016
1016
1016
1016
1016
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017

Ozone (du)

406
409
410
409
413
421
431
449
468
476
482
489
488
486
486
486
486
486
485
484
479
474
469
465

Thursday 29

Waxing Gibbous 89%

13:01

05:43

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

Sun - Rise: 07:07, Set: 16:59, Transit: 12:03. Moon - Rise: 13:01, Set: 05:43. Civil Dark: 17:29 - 06:37. Nautical Dark: 18:03 - 06:03. Astro Dark: 18:37 - 05:29

Total Clouds (% Sky Obscured)

37
37
37
37
37
42
46
61
76
91
74
72
57
50
32
17
26
37
51
52
53
54
48
45

Low Clouds (% Sky Obscured)

1
11
21
32
37
42
46
61
63
64
45
26
7
10
12
15
14
14
16
30
46
54
42
23

Medium Clouds (% Sky Obscured)

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

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
1

ISS Passover

Visibility (miles)

7
7
8
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
1
2
1
4
6
2
5
6
2
6
10
8
11
12
7
13
14
5
9
10
4
8
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)

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

Chance of Frost

Temperature (°C)

-24
-24
-21
-18
-15
-13
-12
-11
-11
-11
-12
-13
-15
-17
-18
-18
-19
-19
-20
-20
-20
-21
-21
-21

Feels Like (°C)

-26
-26
-26
-25
-24
-24
-23
-23
-13
-14
-15
-14
-14
-13
-21
-21
-20
-21
-21
-22
-24
-24
-25
-24

Dew Point (°C)

-27
-27
-24
-22
-19
-18
-17
-16
-16
-15
-15
-16
-18
-19
-20
-21
-21
-22
-22
-23
-23
-23
-24
-23

Relative Humidity (%)

74
74
71
71
70
67
66
63
67
72
75
78
80
81
80
81
80
79
79
78
77
78
78
78

Pressure (mb)

1017
1017
1016
1016
1016
1015
1014
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

461
456
456
456
456
455
454
453
456
459
463
464
466
467
472
477
482
483
484
485
482
479
476
474

Friday 30

Waxing Gibbous 96%

14:12

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 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK

Sun - Rise: 07:06, Set: 17:00, Transit: 12:03. Moon - Rise: 14:12, Set: No Set. Civil Dark: 17:30 - 06:36. Nautical Dark: 18:05 - 06:02. Astro Dark: 18:38 - 05:28

Total Clouds (% Sky Obscured)

44
46
47
47
54
61
86
77
60
56
49
42
36
34
29
21
16
14
16

Low Clouds (% Sky Obscured)

6
10
12
17
30
52
86
77
60
54
40
29
20
17
15
14
11
12
14

Medium Clouds (% Sky Obscured)

10
23
25
27
42
55
69
63
41
36
26
20
9
6
3
0
0
1
1

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

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

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-25
-24
-23
-22
-22
-21
-20
-19
-14
-13
-14
-13
-13
-14
-16
-16
-15
-15
-16

Dew Point (°C)

-23
-23
-20
-18
-16
-15
-14
-13
-13
-13
-12
-13
-14
-14
-15
-16
-16
-18
-18

Relative Humidity (%)

78
79
78
76
72
72
71
69
72
74
75
78
78
81
83
83
86
84
83

Pressure (mb)

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

Ozone (du)

472
470
466
462
458
458
458
458
460
462
464
460
456
451
451
451
451
452
453

Forecast for Chester, Windsor, United States of America (43.26,-72.60)

Generated: 24/01/26 06:03:10. Forecast: 24/01/26 to 30/01/26. Timezone: UTC-5.00