Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 23

Waxing Crescent 29%

09:22

01:18

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 OK
17 OK
18 OK
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good

Sun - Rise: 06:58, Set: 19:17, Transit: 13:07. Moon - Rise: 09:22, Set: 01:18. Civil Dark: 19:44 - 06:31. Nautical Dark: 20:15 - 05:59. Astro Dark: 20:48 - 05:27

Total Clouds (% Sky Obscured)

85
88
91
100
100
100
100
100
100
86
66
83
29
21
29
6
3
2
0
0
0
0
0
2

Low Clouds (% Sky Obscured)

85
86
75
93
100
100
100
100
100
86
56
83
23
17
25
5
3
2
0
0
0
0
0
1

Medium Clouds (% Sky Obscured)

85
88
91
100
83
35
50
50
50
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

85
88
91
100
100
94
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

3
3
2
9
8
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

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

Precipitation Probability (%)

66
95
95
95
47
11
35
58
40
27
4
1
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
0.8
3.8
1.1
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
5
7
6
7
8
8
8
10
11
13
14
15
14
13
12
11
11
11
10
10
9
9

Chance of Frost

Temperature (°C)

11
10
10
11
11
10
10
9
9
8
7
9
9
9
8
6
5
4
3
3
2
2
1
1

Feels Like (°C)

8
7
7
8
9
8
7
7
6
4
3
5
3
5
4
2
1
-0
-0
-2
-2
-3
-3
-3

Dew Point (°C)

9
8
8
10
10
9
8
7
6
4
2
1
-1
-3
-4
-4
-5
-6
-6
-7
-7
-7
-8
-7

Relative Humidity (%)

88
85
90
93
93
90
85
84
81
78
71
59
51
43
44
46
48
48
50
50
51
52
53
56

Pressure (mb)

1005
1005
1005
1004
1006
1007
1009
1010
1011
1012
1012
1013
1013
1015
1016
1019
1020
1022
1023
1023
1024
1024
1025
1025

Ozone (du)

316
317
317
319
323
326
330
336
335
332
332
336
337
337
340
342
343
351
350
354
355
356
360
360

Tuesday 24

Waxing Crescent 40%

10:13

02:25

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 OK
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:56, Set: 19:18, Transit: 13:07. Moon - Rise: 10:13, Set: 02:25. Civil Dark: 19:45 - 06:29. Nautical Dark: 20:16 - 05:57. Astro Dark: 20:49 - 05:25

Total Clouds (% Sky Obscured)

2
14
5
3
0
2
0
0
4
3
2
0
0
3
41
56
100
100
96
46
83
100
100
100

Low Clouds (% Sky Obscured)

1
14
5
3
0
0
0
0
4
3
0
0
0
0
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
3
1
35
94
57
36
28
43
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
2
0
0
0
0
2
0
0
3
31
56
100
100
49
22
31
100
99
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
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
8
8
7
8
9
9
7
6
5
4
4
5
6
7
7
6
4
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

0
0
-0
-0
0
1
2
4
5
7
8
9
9
9
9
8
6
6
5
5
4
4
3
3

Feels Like (°C)

-3
-3
-3
-3
-4
-3
-1
0
3
5
6
8
8
7
6
5
2
2
2
1
1
-0
-1
-0

Dew Point (°C)

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

Relative Humidity (%)

58
61
61
62
55
44
37
31
26
24
21
19
20
21
24
29
35
37
40
43
44
45
46
47

Pressure (mb)

1026
1027
1027
1028
1029
1030
1030
1031
1030
1030
1029
1028
1027
1027
1027
1027
1028
1028
1028
1028
1028
1029
1028
1028

Ozone (du)

360
358
361
366
366
363
361
362
368
374
380
380
378
377
379
379
378
380
380
376
374
373
372
371

Wednesday 25

First Quarter 52%

11:16

03:22

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
03 Bad

Sun - Rise: 06:55, Set: 19:19, Transit: 13:07. Moon - Rise: 11:16, Set: 03:22. Civil Dark: 19:46 - 06:28. Nautical Dark: 20:17 - 05:56. Astro Dark: 20:50 - 05:23

Total Clouds (% Sky Obscured)

100
100
100
100
91
87
83
74
87
100
84
100
100
74
94
88
100
90
100
100
96
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
5
10
10
8
13
23

Medium Clouds (% Sky Obscured)

94
100
100
93
33
49
78
72
87
96
82
100
100
63
71
79
100
90
100
100
93
94
69
68

High Clouds (% Sky Obscured)

100
100
100
100
87
70
7
25
37
94
65
100
74
30
78
7
100
20
20
20
79
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
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
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
-0
0
-0
3
4
6
6
7
7
7
8
7
7
5
4
3
3
3
3
4
4
4

Dew Point (°C)

-6
-6
-5
-5
-5
-4
-5
-5
-5
-5
-4
-4
-3
-2
-2
-2
-2
-2
-3
-3
-1
1
2
3

Relative Humidity (%)

52
54
55
56
54
51
44
37
33
32
31
30
33
36
38
42
47
49
49
49
55
61
65
69

Pressure (mb)

1028
1028
1029
1029
1029
1029
1029
1029
1027
1027
1026
1024
1023
1023
1022
1023
1023
1022
1022
1021
1020
1020
1019
1018

Ozone (du)

370
370
372
370
376
382
382
379
377
374
375
372
370
368
368
365
362
363
361
360
357
353
351
348

Thursday 26

Waxing Gibbous 64%

12:26

04:07

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
03 Bad

Sun - Rise: 06:53, Set: 19:20, Transit: 13:06. Moon - Rise: 12:26, Set: 04:07. Civil Dark: 19:47 - 06:26. Nautical Dark: 20:19 - 05:54. Astro Dark: 20:51 - 05:21

Total Clouds (% Sky Obscured)

100
100
100
100
97
95
93
91
89
84
48
72
57
92
69
75
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

31
26
34
32
23
35
20
19
13
38
12
25
5
8
19
28
18
9
0
21
43
60
72
88

Medium Clouds (% Sky Obscured)

99
96
98
96
87
51
6
11
63
5
25
39
45
52
36
52
64
64
88
98
100
95
97
94

High Clouds (% Sky Obscured)

100
100
100
100
97
94
91
80
68
59
48
72
57
92
69
75
100
100
100
100
79
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
7
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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

5
5
4
1
1
0
0
0
0
0
3
4
3
19
35
50
58
64
78
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.3
0.6
0.8
1.1
1.1
1.1
1.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
9
9
9
10
11
12
15
17
19
20
21
21
21
20
19
18
18
18
17
17
17
16
16

Feels Like (°C)

4
4
5
5
6
8
9
11
13
15
17
19
19
19
18
17
16
15
14
14
13
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

73
75
75
73
70
65
63
53
50
47
49
48
46
47
50
57
62
64
67
71
72
73
75
77

Pressure (mb)

1017
1017
1016
1016
1016
1016
1015
1015
1014
1013
1013
1012
1011
1010
1009
1009
1008
1008
1007
1007
1007
1006
1006
1006

Ozone (du)

344
341
337
329
328
324
320
316
315
312
309
306
305
302
298
296
295
292
291
290
288
288
287
285

Friday 27

Waxing Gibbous 74%

13:39

04:07

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 OK
00 OK
01 Good
02 Good
03 Good

Sun - Rise: 06:51, Set: 19:21, Transit: 13:06. Moon - Rise: 13:39, Set: 04:07. Civil Dark: 19:48 - 06:24. Nautical Dark: 20:20 - 05:52. Astro Dark: 20:52 - 05:20

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
87
73
60
40
17
0
1
2

Low Clouds (% Sky Obscured)

100
91
82
73
64
54
45
35
25
15
10
5
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

92
76
62
47
52
54
49
69
92
100
100
100
100
100
100
100
71
38
7
2
4
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
73
100
100
100
97
93
79
67
56
40
17
0
0
0

ISS Passover

Visibility (miles)

3
4
3
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

Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
24
27
7
2
1
1
1
1
12
18
2
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.2
0.7
0.9
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)

9
13
13
13
12
11
12
12
12
13
12
11
12
11
11
10
11
11
11
11
10
10
10
10

Chance of Frost

Temperature (°C)

16
15
15
15
15
14
13
12
11
11
10
10
9
8
8
7
6
5
3
2
1
0
-1
-1

Feels Like (°C)

13
13
13
12
13
12
10
8
6
4
4
4
3
2
2
2
0
-1
-1
-2
-2
-2
-4
-5

Dew Point (°C)

14
14
13
13
13
12
9
7
3
-1
-2
-3
-1
-2
-6
-6
-7
-8
-10
-11
-12
-12
-13
-13

Relative Humidity (%)

87
89
86
89
90
83
76
71
57
44
41
42
52
49
37
38
40
39
38
38
38
39
39
40

Pressure (mb)

1006
1006
1007
1008
1009
1010
1012
1013
1015
1015
1016
1017
1018
1018
1019
1020
1022
1023
1024
1025
1026
1026
1027
1028

Ozone (du)

283
282
284
284
286
284
281
278
275
274
276
277
280
282
283
286
290
291
293
294
293
291
290
290

Saturday 28

Waxing Gibbous 84%

14:52

04:43

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

Sun - Rise: 06:50, Set: 19:22, Transit: 13:06. Moon - Rise: 14:52, Set: 04:43. Civil Dark: 19:49 - 06:23. Nautical Dark: 20:21 - 05:51. Astro Dark: 20:54 - 05:18

Total Clouds (% Sky Obscured)

2
9
16
47
36
22
7
8
15
24
37
55
82
74
51
29
37
46
52
32
11
3
1
1

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
0
7
14
22
14
7
0
8
16
23
17
10
3
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
3
15
15
34
70
65
48
29
33
38
43
28
11
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
Snow
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
7
10
3
9
9
5
15
24
31
27
21
11
9
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-5
-6
-6
-6
-6
-5
-5
-4
-4
1
2
1
2
2
2
1
1
2
1
1
1
0

Dew Point (°C)

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

Relative Humidity (%)

41
41
39
38
36
34
31
29
26
23
20
20
20
20
22
25
28
29
32
35
36
37
38
41

Pressure (mb)

1028
1029
1030
1031
1031
1032
1032
1032
1031
1031
1030
1030
1029
1029
1029
1029
1029
1029
1030
1030
1030
1031
1031
1032

Ozone (du)

290
290
294
297
301
308
315
323
331
339
348
355
362
369
374
379
383
383
382
381
380
379
378
383

Sunday 29

Waxing Gibbous 91%

16:02

05:12

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

Sun - Rise: 06:48, Set: 19:23, Transit: 13:05. Moon - Rise: 16:02, Set: 05:12. Civil Dark: 19:50 - 06:21. Nautical Dark: 20:22 - 05:49. Astro Dark: 20:55 - 05:16

Total Clouds (% Sky Obscured)

0
3
5
7
17
26
38
30
22
14
28
42
59
66
66
67
74
84
92
89
86
83

Low Clouds (% Sky Obscured)

0
3
5
7
16
26
38
30
22
14
27
23
17
11
6
0
0
0
0
1
2
3

Medium Clouds (% Sky Obscured)

0
0
0
0
1
1
2
2
2
3
10
18
26
18
13
7
13
20
23
23
19
21

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
19
65
63
60

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

Precipitation Probability (%)

0
0
0
0
1
2
2
2
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

2
2
2
2
2
4
5
8
9
10
11
11
12
12
11
10
10
9
8
7
7
7

Feels Like (°C)

-1
-1
-1
-1
-2
-1
-0
1
2
2
3
8
8
7
8
7
8
4
4
4
3
4

Dew Point (°C)

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

Relative Humidity (%)

43
45
45
47
47
41
37
33
32
32
31
31
31
31
33
35
37
38
40
40
41
42

Pressure (mb)

1032
1032
1033
1033
1034
1034
1035
1035
1034
1034
1033
1032
1032
1031
1031
1031
1031
1031
1031
1031
1030
1030

Ozone (du)

389
394
397
400
403
405
408
410
409
408
407
407
406
405
404
402
401
399
396
394
393
392

Forecast for Swarthmore, Delaware, United States of America (39.90,-75.35)

Generated: 23/03/26 04:05:05. Forecast: 23/03/26 to 29/03/26. Timezone: UTC-4.00