Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Gibbous 63%

00:11

10:16

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
03 Bad
04 Bad

Sun - Rise: 07:54, Set: 16:29, Transit: 12:12. Moon - Rise: 00:11, Set: 10:16. Civil Dark: 17:07 - 07:17. Nautical Dark: 17:48 - 06:35. Astro Dark: 18:28 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
95
95
92
58
54
48
54
59
70
67
84
99

Low Clouds (% Sky Obscured)

96
94
80
57
43
35
41
44
56
58
53
78
79
85
69
56
54
48
54
59
70
67
83
99

Medium Clouds (% Sky Obscured)

100
100
100
100
100
96
100
100
100
100
100
94
95
92
92
58
8
5
4
1
0
0
1
8

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
100
100
100
100
65
5
29
45
2
2
0
29
39
55
70
87

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

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
5
7
7
7
7
6
5
5
5
5
5
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

1
2
2
2
2
3
3
4
4
5
5
5
4
4
4
4
3
3
2
2
2
2
2
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
80
78
78
79
77
76
77
80
86
85
83
85
88
88
89
91
93
93
93
93
94
93
94

Pressure (mb)

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

Ozone (du)

291
296
303
313
324
325
327
329
334
337
340
341
344
347
350
357
363
361
352
352
348
345
341
340

Tuesday 21

Third Quarter 56%

01:23

10:26

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
03 Bad
04 Bad

Sun - Rise: 07:53, Set: 16:30, Transit: 12:12. Moon - Rise: 01:23, Set: 10:26. Civil Dark: 17:08 - 07:16. Nautical Dark: 17:50 - 06:34. Astro Dark: 18:29 - 05:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
95
99
100
100
100
100
100
100
100
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
77
77
90
92
78
74
81
64
80
95
78
71
77
74
77
76
76

Medium Clouds (% Sky Obscured)

55
6
19
57
66
76
100
65
65
16
35
45
76
100
100
100
96
100
98
99
98
96
98
100

High Clouds (% Sky Obscured)

94
81
100
100
69
55
100
100
91
98
100
100
100
64
100
100
100
100
42
35
95
85
100
100

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
4
100
100
100
100
100
90
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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
29
50
62

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

1
1
1
1
1
2
2
2
3
3
4
3
3
3
2
2
2
2
3
3
3
3
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
93
93
89
84
80
79
77
79
82
86
89
93
94
94
96
94
96
94
96
94
94
94

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1015
1014
1014
1013
1013
1013
1012
1012
1011
1011
1010
1010
1009
1008
1008
1007
1007

Ozone (du)

342
341
343
341
340
342
337
332
332
336
340
340
336
336
338
337
339
342
346
333
318
310
306
305

Wednesday 22

Waning Crescent 46%

02:38

10:38

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
03 Bad
04 Bad

Sun - Rise: 07:52, Set: 16:32, Transit: 12:12. Moon - Rise: 02:38, Set: 10:38. Civil Dark: 17:10 - 07:15. Nautical Dark: 17:51 - 06:33. Astro Dark: 18:31 - 05:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
74
98
100
83
84
65
57
63

Low Clouds (% Sky Obscured)

76
84
91
87
91
88
88
91
94
96
93
99
100
100
100
91
74
55
67
63
73
65
53
47

Medium Clouds (% Sky Obscured)

100
100
74
96
78
32
36
100
99
100
100
100
100
100
100
100
25
30
30
23
12
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
88
100
100
100
100
100
100
100
62
65
0
0
0
0
0
3

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
23
2
17
52
82
38
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
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 (%)

69
50
36
39
37
34
29
23
25
29
32
25
21
13
9
4
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
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
3
2
2
2
2
2
3
4
5
5
5
6
6
6
6
6
7
7
7
6
7
7

Chance of Frost

Temperature (°C)

3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
3
3
3
3
2
2
2
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
94
94
93
93
93
93
94
94
96
94
94
93
93
94
94
91
91
91
91
89

Pressure (mb)

1006
1006
1006
1005
1005
1005
1005
1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1004
1004
1004
1005
1005
1005
1005

Ozone (du)

307
308
306
311
317
323
323
322
321
319
320
315
311
310
311
313
316
316
305
296
291
293
301
304

Thursday 23

Waning Crescent 37%

03:53

10:55

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
03 Bad
04 Bad

Sun - Rise: 07:51, Set: 16:34, Transit: 12:12. Moon - Rise: 03:53, Set: 10:55. Civil Dark: 17:11 - 07:13. Nautical Dark: 17:53 - 06:32. Astro Dark: 18:32 - 05:52

Total Clouds (% Sky Obscured)

60
72
57
69
68
66
68
79
89
99
97
53
56
63
97
100
99
98
97
98
99
100
100
100

Low Clouds (% Sky Obscured)

44
36
28
19
21
26
53
59
71
84
82
53
56
63
60
57
55
50
51
57
64
67
72
91

Medium Clouds (% Sky Obscured)

4
30
11
2
25
25
30
52
76
98
29
15
8
8
10
10
67
68
34
93
97
100
99
97

High Clouds (% Sky Obscured)

3
17
24
40
29
17
10
10
15
0
0
0
1
26
80
100
91
81
72
81
89
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
4
2
7
9
9
9
9
9
9
9
9
9
9
9
9
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

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

Precipitation Probability (%)

0
0
0
0
0
0
5
60
95
87
49
38
31
29
15
0
1
2
0
1
3
7
45
83

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
1.6
0.8
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0.6

Wind Speed/Direction (mph)

6
7
7
7
8
10
11
13
16
14
14
15
14
14
14
14
13
10
9
7
7
7
9
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
89
91
91
88
88
85
83
91
91
81
82
85
83
86
86
88
91
94
89
89
88
91

Pressure (mb)

1006
1006
1007
1007
1007
1007
1007
1006
1005
1004
1004
1004
1005
1006
1007
1007
1008
1008
1008
1009
1008
1007
1006
1004

Ozone (du)

309
316
322
320
325
333
341
352
367
379
386
382
382
376
375
369
366
362
362
361
360
358
359
353

Friday 24

Waning Crescent 27%

05:07

11:17

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
03 Bad
04 Bad

Sun - Rise: 07:50, Set: 16:36, Transit: 12:13. Moon - Rise: 05:07, Set: 11:17. Civil Dark: 17:13 - 07:12. Nautical Dark: 17:54 - 06:31. Astro Dark: 18:34 - 05:51

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
89
97
98
97
99
98
98
98
99
100
100
100
100
90
81

Low Clouds (% Sky Obscured)

92
93
95
97
97
97
97
92
88
84
77
70
63
94
93
93
92
91
90
88
86
84
80
68

Medium Clouds (% Sky Obscured)

94
95
97
100
99
98
97
94
52
42
44
94
96
95
96
97
98
98
99
72
45
27
25
20

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
92
79
70
42
45
44
48
53
44
34
28
50
73
95
64
31

ISS Passover

Visibility (miles)

3
7
4
2
3
2
3
8
8
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

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

Precipitation Probability (%)

79
92
95
95
95
95
77
55
48
43
44
41
30
69
69
73
74
71
63
52
41
20
14
7

Precipitation Amount (mm)

0.4
0.6
1.3
1.4
1.2
1
0.5
0.2
0
0
0
0
0
0.4
0.3
0.4
0.4
0.3
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

15
20
21
21
23
23
23
22
20
19
18
16
15
14
15
14
14
15
15
16
15
15
14
13

Chance of Frost

Temperature (°C)

7
8
8
7
8
8
9
9
10
9
9
9
8
8
8
8
8
8
8
8
8
7
7
6

Feels Like (°C)

1
1
1
-0
0
1
1
2
3
3
4
3
2
1
1
2
2
2
2
2
2
3
4
3

Dew Point (°C)

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

Relative Humidity (%)

96
93
90
90
93
93
90
91
87
77
76
75
75
71
71
70
69
73
74
78
78
81
82
83

Pressure (mb)

1002
1001
1000
998
997
996
995
995
995
996
996
997
998
999
1001
1001
1002
1002
1002
1003
1002
1002
1002
1002

Ozone (du)

347
345
346
345
342
337
334
336
334
331
330
331
333
341
346
351
356
361
366
371
371
371
370
375

Saturday 25

Waning Crescent 19%

05:07

11:50

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
03 Bad
04 Bad

Sun - Rise: 07:48, Set: 16:37, Transit: 12:13. Moon - Rise: 05:07, Set: 11:50. Civil Dark: 17:15 - 07:11. Nautical Dark: 17:56 - 06:30. Astro Dark: 18:35 - 05:50

Total Clouds (% Sky Obscured)

69
77
82
90
91
95
99
96
90
85
90
85
90
100
100
100
95
90
90
85
85
90
72
53

Low Clouds (% Sky Obscured)

53
59
69
74
81
87
93
86
77
72
64
49
34
23
11
0
0
0
0
1
3
2
2
0

Medium Clouds (% Sky Obscured)

13
21
28
34
44
55
65
52
47
62
73
74
70
62
55
40
23
19
15
39
57
76
72
53

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
24
42
58
59
45
60
65
65
65
60
57
63
55
42

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
4
2
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

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

Precipitation Probability (%)

0
1
2
6
37
47
46
36
21
22
24
22
15
8
4
0
0
0
0
8
30
61
76
71

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
82
86
90
93
87
81
77
75
71
70
73
76
80
82
83
86
85
83
82
86
89
94
93

Pressure (mb)

1002
1002
1002
1002
1001
1002
1002
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

379
384
384
383
383
381
379
378
381
385
388
391
395
398
405
411
417
413
408
404
399
394
389
392

Sunday 26

Waning Crescent 11%

06:14

12:37

Sun - Rise: 07:47, Set: 16:39, Transit: 12:13. Moon - Rise: 06:14, Set: 12:37. Civil Dark: 17:16 - 07:10. Nautical Dark: 17:57 - 06:29. Astro Dark: 18:37 - 05:49

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

Generated: 20/01/25 05:26:37. Forecast: 20/01/25 to 26/01/25. Timezone: UTC+0.00