Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 22

Waxing Crescent 41%

08:45

00:26

20 OK
21 OK
22 OK
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: 06:57, Set: 17:30, Transit: 12:14. Moon - Rise: 08:45, Set: 00:26. Civil Dark: 18:04 - 06:23. Nautical Dark: 18:43 - 05:44. Astro Dark: 19:22 - 05:05

Total Clouds (% Sky Obscured)

25
29
33
44
100
100
81
81
75
100
100
84
84
83
93
94
94
98
97
98
99
97
100
95

Low Clouds (% Sky Obscured)

25
29
33
44
71
71
71
76
75
79
84
78
59
55
46
72
72
87
62
72
81
96
100
90

Medium Clouds (% Sky Obscured)

20
0
0
0
0
0
5
0
0
0
0
0
0
3
88
86
94
96
97
98
99
97
98
86

High Clouds (% Sky Obscured)

20
15
0
44
100
62
27
71
50
100
100
74
77
79
85
83
71
69
54
77
60
82
83
66

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
5
8
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
Light Rain
Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
2
1
1
0
7
12
5
15
8
27
61
76
74
59
42

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.5
0.4
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
9
8
8
8
8
8
8
8
8
8
8
8
9
10
10
11
11
11
11
10
10
10
10

Feels Like (°C)

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

Dew Point (°C)

7
7
6
6
4
5
5
5
4
4
5
6
5
6
6
6
7
8
7
8
9
9
9
9

Relative Humidity (%)

82
84
85
84
74
77
79
82
73
75
84
88
84
84
78
77
80
81
78
81
88
91
93
93

Pressure (mb)

1015
1015
1016
1016
1016
1016
1015
1015
1015
1014
1014
1015
1015
1015
1015
1016
1016
1016
1015
1015
1015
1016
1016
1015

Ozone (du)

396
397
388
377
372
367
367
368
365
367
366
363
362
363
363
360
357
361
360
357
355
351
346
346

Monday 23

Waxing Crescent 53%

09:14

01:55

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: 06:55, Set: 17:32, Transit: 12:13. Moon - Rise: 09:14, Set: 01:55. Civil Dark: 18:06 - 06:21. Nautical Dark: 18:45 - 05:42. Astro Dark: 19:24 - 05:03

Total Clouds (% Sky Obscured)

96
100
96
100
100
100
100
96
88
85
74
82
82
77
72
81
66
70
66
60
58
54
68
79

Low Clouds (% Sky Obscured)

93
85
92
100
100
100
99
96
88
85
74
82
81
76
71
81
66
70
66
60
58
54
68
78

Medium Clouds (% Sky Obscured)

83
73
79
80
19
8
4
0
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

77
100
21
46
4
6
13
5
5
24
2
30
30
23
8
2
3
2
2
3
3
2
2
23

ISS Passover

Visibility (miles)

9
8
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
1
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
2
2
0
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
8
8
8
8
8
9
9
9
8
8
9
8
8
8
8
9
10
10
10
10
10
9
9

Dew Point (°C)

9
10
10
11
11
10
11
11
10
10
9
9
10
9
9
9
8
7
7
7
8
8
8
8

Relative Humidity (%)

95
96
96
96
95
93
96
96
96
95
95
96
98
93
90
84
76
70
70
70
75
83
88
91

Pressure (mb)

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

Ozone (du)

350
353
351
348
346
346
347
346
345
345
345
347
350
352
353
353
353
352
352
354
354
356
358
357

Tuesday 24

First Quarter 65%

09:58

03:18

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 OK
11 OK
12 OK
13 OK
14 Bad
15 OK
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:53, Set: 17:34, Transit: 12:13. Moon - Rise: 09:58, Set: 03:18. Civil Dark: 18:07 - 06:19. Nautical Dark: 18:46 - 05:40. Astro Dark: 19:25 - 05:01

Total Clouds (% Sky Obscured)

71
65
58
65
66
72
75
66
64
57
74
73
57
45
35
31
31
37
56
48
71
77
100
100

Low Clouds (% Sky Obscured)

67
61
58
64
64
62
70
66
64
57
69
69
57
45
35
31
31
36
35
47
46
34
31
29

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
7
17
10
29
36
72
100

High Clouds (% Sky Obscured)

28
24
5
35
37
55
54
27
29
8
29
27
2
2
2
2
2
2
2
1
57
44
75
83

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
8
7
8
8
7
7
7
8
7
7
7
7
9
10
12
13
14
14
14
14
13
11
10

Dew Point (°C)

8
8
8
8
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
10
10
10
10

Relative Humidity (%)

91
91
93
95
95
95
95
95
96
95
96
96
98
91
86
80
75
70
68
68
71
79
84
90

Pressure (mb)

1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1013
1013
1012
1012
1013
1013
1013
1013

Ozone (du)

359
360
361
364
363
363
363
363
362
358
359
359
360
358
355
353
355
357
358
360
361
363
364
367

Wednesday 25

Waxing Gibbous 61%

11:00

04:26

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: 06:51, Set: 17:35, Transit: 12:13. Moon - Rise: 11:00, Set: 04:26. Civil Dark: 18:09 - 06:17. Nautical Dark: 18:48 - 05:38. Astro Dark: 19:27 - 04:59

Total Clouds (% Sky Obscured)

100
100
100
78
72
76
60
78
94
96
97
99
100
95
90
84
88
94
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

25
31
36
41
49
66
60
77
88
87
85
84
82
71
66
61
65
69
73
64
58
46
64
82

Medium Clouds (% Sky Obscured)

99
97
99
62
47
25
0
10
20
29
42
54
45
93
88
82
86
90
100
100
100
100
100
100

High Clouds (% Sky Obscured)

94
96
88
78
64
32
0
0
0
0
0
0
15
20
20
20
53
80
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
5
4
4
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain

Precipitation Probability (%)

0
8
21
28
29
27
16
18
21
16
18
11
15
24
30
15
12
40
52
54
56
45
44
59

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.2
0
0
0.2

Wind Speed/Direction (mph)

6
7
7
8
8
8
10
11
13
14
14
14
13
14
15
16
16
17
17
16
16
16
16
15

Chance of Frost

Temperature (°C)

11
11
10
10
10
10
10
9
10
10
10
10
10
10
11
11
11
11
11
11
10
10
9
9

Feels Like (°C)

9
8
8
7
9
9
7
7
6
5
5
5
6
6
6
6
7
6
6
5
5
4
3
4

Dew Point (°C)

10
9
9
8
9
9
8
8
8
7
7
7
7
8
8
8
8
8
9
9
8
8
7
8

Relative Humidity (%)

90
88
90
88
91
93
91
93
91
84
81
81
84
83
83
81
81
81
87
85
87
87
87
88

Pressure (mb)

1013
1013
1013
1013
1013
1013
1012
1012
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1011
1011
1011
1011
1010
1010

Ozone (du)

370
375
383
388
393
401
411
420
408
403
396
391
385
380
378
372
370
366
362
359
351
349
345
343

Thursday 26

Waxing Gibbous 76%

12:19

05:16

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: 06:49, Set: 17:37, Transit: 12:13. Moon - Rise: 12:19, Set: 05:16. Civil Dark: 18:11 - 06:15. Nautical Dark: 18:50 - 05:36. Astro Dark: 19:29 - 04:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
90
80
67
77
87
96
92
88
85
88
91

Low Clouds (% Sky Obscured)

100
98
97
95
96
98
100
100
100
100
88
76
64
66
67
67
77
85
94
83
72
61
71
82

Medium Clouds (% Sky Obscured)

100
100
100
100
98
93
58
92
98
100
83
67
50
6
44
0
13
21
28
28
31
30
30
29

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
80
63
45
63
83
100
77
25
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

76
95
95
95
95
95
87
85
84
92
95
95
66
32
8
6
19
21
24
28
28
25
24
19

Precipitation Amount (mm)

0.4
0.8
1.1
1.2
0.9
0.8
0.6
0.6
0.5
0.7
0.7
0.8
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
14
14
13
13
12
12
11
10
8
10
15
18
18
18
17
18
17
17
16
14
14
12
12

Chance of Frost

Temperature (°C)

9
9
9
9
9
9
9
10
10
10
10
10
9
9
9
10
11
10
10
10
10
9
8
8

Feels Like (°C)

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

Dew Point (°C)

8
8
8
8
8
8
9
9
10
10
9
8
8
8
7
7
6
5
4
4
4
5
6
5

Relative Humidity (%)

91
93
93
93
95
95
95
98
98
98
93
90
93
90
88
85
74
71
67
63
69
75
82
84

Pressure (mb)

1009
1009
1008
1007
1006
1005
1004
1003
1003
1002
1002
1002
1003
1003
1004
1004
1004
1005
1006
1007
1008
1010
1012
1013

Ozone (du)

340
338
338
336
337
338
338
336
334
336
338
338
341
343
348
354
359
364
368
373
376
380
383
385

Friday 27

Waxing Gibbous 85%

13:46

05:49

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

Sun - Rise: 06:46, Set: 17:39, Transit: 12:13. Moon - Rise: 13:46, Set: 05:49. Civil Dark: 18:13 - 06:13. Nautical Dark: 18:51 - 05:34. Astro Dark: 19:31 - 04:55

Total Clouds (% Sky Obscured)

94
94
93
90
63
36
9
10
13
25
25
15
25
43
60
70
77
81
83
88
94
100
99
100

Low Clouds (% Sky Obscured)

93
84
75
65
47
28
9
10
13
25
25
15
15
29
43
55
59
69
78
74
69
65
65
65

Medium Clouds (% Sky Obscured)

26
18
16
13
9
4
0
0
0
0
0
0
0
1
1
3
9
20
29
45
59
72
74
74

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
30
63
91
81
66

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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 (%)

18
22
23
27
23
11
0
3
1
0
11
11
4
14
19
23
20
20
27
35
33
27
40
31

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)

12
10
9
9
8
6
5
4
4
3
3
4
4
5
7
9
11
12
13
14
13
13
13
13

Chance of Frost

Temperature (°C)

7
7
7
6
6
6
5
5
5
5
4
5
5
6
7
8
9
9
9
9
9
8
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
84
81
79
79
80
80
82
83
85
88
90
90
84
78
73
73
74
74
80
85
90
91

Pressure (mb)

1014
1016
1017
1017
1018
1019
1019
1020
1020
1020
1020
1020
1020
1021
1020
1020
1019
1018
1017
1017
1016
1016
1015
1014

Ozone (du)

386
387
389
391
394
395
397
399
397
395
393
393
394
394
396
398
399
400
400
401
404
408
411
407

Saturday 28

Waxing Gibbous 92%

15:14

06:12

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 OK
15 OK
16 OK
17 OK

Sun - Rise: 06:44, Set: 17:41, Transit: 12:13. Moon - Rise: 15:14, Set: 06:12. Civil Dark: 18:14 - 06:11. Nautical Dark: 18:53 - 05:32. Astro Dark: 19:32 - 04:53

Total Clouds (% Sky Obscured)

99
99
99
99
98
95
94
89
81
74
81
87
93
85
75
70
55
41
27
27
29
30

Low Clouds (% Sky Obscured)

65
76
87
98
88
79
71
72
73
73
70
66
61
55
51
47
39
34
25
25
27
29

Medium Clouds (% Sky Obscured)

58
45
35
24
28
32
41
34
14
1
11
21
22
9
9
9
8
6
3
2
2
1

High Clouds (% Sky Obscured)

50
51
48
50
48
50
57
45
22
2
6
10
14
15
17
20
13
8
2
2
1
3

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

Fog (%)

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

Precipitation Probability (%)

19
20
26
48
63
76
87
74
56
12
3
0
0
19
30
41
43
28
17
10
5
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
7
7
7
7
7
7
6
6
6
6
7
7
7
9
10
11
11
11
12
11
10

Feels Like (°C)

3
4
4
4
3
4
5
5
5
4
4
5
5
4
5
5
5
9
9
8
9
9

Dew Point (°C)

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

Relative Humidity (%)

93
94
93
93
91
94
96
96
94
91
88
88
85
84
77
70
65
63
60
58
64
71

Pressure (mb)

1014
1013
1012
1012
1011
1011
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012

Ozone (du)

404
401
398
395
393
391
390
388
387
386
385
384
383
382
382
382
382
383
384
385
384
384

Forecast for Welwyn Garden City, Hertfordshire, United Kingdom (51.80,-0.21)

Generated: 22/02/26 20:31:54. Forecast: 22/02/26 to 28/02/26. Timezone: UTC+0.00