Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 29

Waxing Gibbous 100%

21:44

03:30

01 Good
02 Good
03 Good
04 Good
05 OK
06 OK
07 OK
08 OK
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

Sun - Rise: 04:45, Set: 21:23, Transit: 13:04. Moon - Rise: 21:44, Set: 03:30. Civil Dark: 22:11 - 03:57. Nautical Dark: 23:26 - 02:42. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

2
2
1
0
16
26
24
26
21
31
68
100
94
51
73
98
83
72
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
2
19
17
25
33
46
60
38
29
7
0
1
15
17
20
14
7
24

Medium Clouds (% Sky Obscured)

0
0
0
0
16
24
22
3
0
2
2
37
44
10
52
55
56
56
74
68
73
50
73
100

High Clouds (% Sky Obscured)

0
0
0
0
2
0
2
8
5
7
55
100
62
7
33
84
49
38
100
100
100
100
100
95

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
4

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

Chance of Frost

Temperature (°C)

13
13
12
12
11
12
13
15
17
18
20
21
22
23
23
24
24
23
23
22
21
20
18
18

Feels Like (°C)

12
12
11
11
11
11
12
14
16
18
19
19
20
21
23
23
22
21
22
21
20
18
16
16

Dew Point (°C)

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

Relative Humidity (%)

76
83
87
90
91
86
75
66
61
55
49
43
41
40
37
35
35
35
39
49
53
57
61
61

Pressure (mb)

1024
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1024
1024
1024
1024
1025
1024

Ozone (du)

366
357
348
344
342
343
339
337
337
338
337
336
338
340
338
335
332
330
330
330
329
330
330
331

Tuesday 30

Full Moon 100%

22:18

04:30

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

Sun - Rise: 04:46, Set: 21:23, Transit: 13:04. Moon - Rise: 22:18, Set: 04:30. Civil Dark: 22:10 - 03:58. Nautical Dark: 23:25 - 02:43. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
91
89
89
100
100
96
82
98
100
95
95
40
85
90
94
93
37
41
34

Low Clouds (% Sky Obscured)

4
29
32
58
45
44
22
31
37
30
39
26
37
17
32
89
21
62
68
50
66
17
16
11

Medium Clouds (% Sky Obscured)

100
100
100
100
85
85
56
49
39
44
38
28
47
50
42
28
32
35
31
42
34
25
25
20

High Clouds (% Sky Obscured)

100
100
100
100
100
75
69
60
100
100
85
63
97
100
40
45
2
35
2
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
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 (%)

21
3
1
3
6
14
2
1
1
1
0
0
0
0
0
0
1
2
3
3
1
0
1
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)

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

Chance of Frost

Temperature (°C)

17
16
16
16
16
15
16
17
18
19
20
21
22
23
23
23
22
22
21
20
19
18
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
64
63
63
63
65
66
59
57
53
49
42
36
34
35
36
49
42
55
67
67
69
79
85

Pressure (mb)

1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021

Ozone (du)

330
334
338
343
348
353
354
355
358
357
356
356
357
356
355
356
356
355
357
359
361
363
363
363

Wednesday 1

Waning Gibbous 99%

22:43

05:39

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

Sun - Rise: 04:46, Set: 21:22, Transit: 13:04. Moon - Rise: 22:43, Set: 05:39. Civil Dark: 22:10 - 03:59. Nautical Dark: 23:24 - 02:44. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

23
33
33
28
24
55
53
38
92
97
87
92
59
79
91
89
71
36
31
46
42
83
66
25

Low Clouds (% Sky Obscured)

17
33
33
28
24
28
43
38
56
52
48
60
33
38
48
40
40
12
10
26
28
14
7
0

Medium Clouds (% Sky Obscured)

7
1
0
0
0
0
0
0
31
36
33
34
34
43
38
36
34
32
31
32
31
34
64
25

High Clouds (% Sky Obscured)

0
0
0
0
0
55
53
20
50
81
21
13
9
9
9
6
7
2
2
4
2
28
3
2

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
2
13
13
8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
13
13
12
12
12
12
12
12
12
12
13
12
12
13
14
13
12
13
13
13
13
13

Relative Humidity (%)

87
92
92
93
93
90
80
73
66
61
57
55
55
49
46
50
54
48
47
55
60
62
67
72

Pressure (mb)

1021
1021
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1023
1023
1023

Ozone (du)

363
364
365
366
366
366
362
355
347
344
339
338
335
332
329
326
323
319
317
317
318
318
319
319

Thursday 2

Waning Gibbous 96%

23:02

06:53

01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
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 OK
21 OK
22 OK
23 Good
00 Good

Sun - Rise: 04:47, Set: 21:22, Transit: 13:05. Moon - Rise: 23:02, Set: 06:53. Civil Dark: 22:10 - 04:00. Nautical Dark: 23:23 - 02:46. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

28
28
38
37
31
22
37
95
92
93
71
61
62
57
55
51
52
50
45
33
24
17
9
0

Low Clouds (% Sky Obscured)

1
2
3
17
31
22
37
85
85
89
71
61
52
44
36
32
28
24
23
22
19
14
7
0

Medium Clouds (% Sky Obscured)

28
28
34
27
18
12
9
5
2
5
10
15
27
39
49
44
40
34
23
10
0
0
0
0

High Clouds (% Sky Obscured)

2
2
5
4
2
0
2
2
2
2
2
0
2
5
6
3
2
0
1
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
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
1
1
0
0
0
1
14
12
5
5
4
3
0
0
1
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)

7
8
8
9
10
11
13
14
16
16
14
15
15
16
16
17
17
17
15
15
13
11
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
14
11
11
12
12
14
15
17
17
12
9
7
6
6
7
7
8
8
9
9
10
11

Relative Humidity (%)

78
81
87
78
79
80
78
77
77
80
79
51
41
35
32
32
35
37
40
45
51
56
63
73

Pressure (mb)

1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1023
1024
1024
1025
1026
1026

Ozone (du)

320
321
319
318
316
316
317
316
317
317
317
318
318
318
319
320
321
322
324
329
335
347
363
368

Friday 3

Waning Gibbous 91%

23:16

08:09

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

Sun - Rise: 04:48, Set: 21:22, Transit: 13:05. Moon - Rise: 23:16, Set: 08:09. Civil Dark: 22:09 - 04:00. Nautical Dark: 23:22 - 02:47. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
9
55
60
33
53
56
87
91
96
89
82
76
56
34
15
13
7
2
1
1
0

Low Clouds (% Sky Obscured)

0
0
0
7
13
19
19
21
20
20
16
12
9
5
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
3
55
60
13
39
39
77
83
93
85
78
73
55
34
14
10
6
1
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
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
3
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
7
7
7
8
9
9
9
9
9
9
9
9
9
9
9
9
9
10
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
13
12
12
11
12
14
15
17
17
18
20
20
20
20
20
21
21
20
20
20
19
18

Dew Point (°C)

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

Relative Humidity (%)

79
80
84
87
87
82
73
63
53
45
40
37
34
31
29
26
28
30
31
37
43
51
58
65

Pressure (mb)

1027
1027
1028
1028
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1030
1030
1030

Ozone (du)

367
367
361
354
350
346
343
341
338
335
334
333
331
330
328
327
327
327
327
328
330
331
330
329

Saturday 4

Waning Gibbous 85%

23:28

09:25

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

Sun - Rise: 04:49, Set: 21:21, Transit: 13:05. Moon - Rise: 23:28, Set: 09:25. Civil Dark: 22:08 - 04:01. Nautical Dark: 23:21 - 02:49. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

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

Medium 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

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
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 (%)

1
1
2
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
8
9
9
10
10
10
10
11
12
12
12
11
11
11
12
11
11
11
10
8
6
6
5

Chance of Frost

Temperature (°C)

14
13
12
11
12
13
13
16
18
21
22
23
25
26
27
28
27
27
26
25
22
20
19
18

Feels Like (°C)

18
11
11
10
10
10
10
13
14
15
17
18
20
24
24
24
25
25
26
25
24
24
23
21

Dew Point (°C)

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

Relative Humidity (%)

73
74
73
75
75
74
74
68
62
57
53
50
46
42
37
33
33
34
35
41
48
57
62
67

Pressure (mb)

1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1027
1027
1027
1027
1027
1027
1028
1028
1028
1029

Ozone (du)

328
327
327
326
325
324
322
321
319
318
317
316
315
313
311
309
309
309
309
309
309
309
309
309

Sunday 5

Waning Gibbous 77%

23:39

10:40

Sun - Rise: 04:49, Set: 21:21, Transit: 13:05. Moon - Rise: 23:39, Set: 10:40. Civil Dark: 22:08 - 04:02. Nautical Dark: 23:20 - 02:50. Astro Dark: N/A - N/A

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: 29/06/26 01:32:39. Forecast: 29/06/26 to 05/07/26. Timezone: UTC+1.00