| 22:55 EST |  Clear | 3°C / 37°F | 0°C / 32°F | 81% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KSFZ 050355Z 00000KT 10SM CLR 03/00 A3014 RMK AO1 |
| 22:35 EST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050335Z 00000KT 10SM CLR 04/00 A3013 RMK AO1 |
| 22:15 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1021 mb (30.15 in) | W 6 kph (W 3.5 mph) | - | 10SM |
| | KSFZ 050315Z 27003KT 10SM CLR 03/M01 A3014 RMK AO1 |
| 21:55 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050255Z 00000KT 10SM CLR 04/M01 A3013 RMK AO1 52003 |
| 21:35 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050235Z 00000KT 10SM CLR 04/M01 A3012 RMK AO1 |
| 21:15 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050215Z 00000KT 10SM CLR 04/M01 A3012 RMK AO1 |
| 20:55 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050155Z 00000KT 10SM CLR 04/M01 A3011 RMK AO1 |
| 20:35 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050135Z 00000KT 10SM CLR 04/M01 A3011 RMK AO1 |
| 20:15 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050115Z 00000KT 10SM CLR 04/M01 A3011 RMK AO1 |
| 19:55 EST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050055Z 00000KT 10SM CLR 04/M02 A3011 RMK AO1 |
| 19:35 EST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050035Z 00000KT 10SM CLR 04/M02 A3011 RMK AO1 |
| 19:15 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 050015Z 00000KT 10SM CLR 04/M01 A3011 RMK AO1 |
| 18:55 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1020 mb (30.12 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSFZ 042355Z 26003KT 10SM CLR 04/M01 A3012 RMK AO1 10110 20040 401300030 52010 |
| 18:35 EST |  Clear | 4°C / 39°F | -2°C / 28°F | 65% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSFZ 042335Z 00000KT 10SM CLR 04/M02 A3011 RMK AO1 |
| 18:15 EST |  Clear | 5°C / 41°F | -2°C / 28°F | 61% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSFZ 042315Z 00000KT 10SM CLR 05/M02 A3010 RMK AO1 |
| 17:55 EST |  Clear | 6°C / 43°F | -1°C / 30°F | 61% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSFZ 042255Z 00000KT 10SM CLR 06/M01 A3010 RMK AO1 |
| 17:35 EST |  Clear | 6°C / 43°F | -2°C / 28°F | 57% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSFZ 042235Z 00000KT 10SM CLR 06/M02 A3010 RMK AO1 |
| 17:15 EST |  Clear | 7°C / 45°F | -2°C / 28°F | 53% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSFZ 042215Z 00000KT 10SM CLR 07/M02 A3010 RMK AO1 |
| 16:55 EST |  Clear | 7°C / 45°F | -3°C / 27°F | 49% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSFZ 042155Z 00000KT 10SM CLR 07/M03 A3010 RMK AO1 |
| 16:35 EST |  Clear | 8°C / 46°F | -3°C / 27°F | 46% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSFZ 042135Z 00000KT 10SM CLR 08/M03 A3010 RMK AO1 |
| 16:15 EST |  Clear | 9°C / 48°F | -2°C / 28°F | 46% | 1019 mb (30.09 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KSFZ 042115Z 27004KT 10SM CLR 09/M02 A3009 RMK AO1 |
| 15:55 EST |  Clear | 9°C / 48°F | -3°C / 27°F | 43% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSFZ 042055Z 00000KT 10SM CLR 09/M03 A3009 RMK AO1 52020 |
| 15:35 EST |  Clear | 9°C / 48°F | -3°C / 27°F | 43% | 1018 mb (30.06 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSFZ 042035Z 26004KT 10SM CLR 09/M03 A3007 RMK AO1 |
| 15:15 EST |  Clear | 9°C / 48°F | -3°C / 27°F | 43% | 1018 mb (30.06 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSFZ 042015Z 24003KT 10SM CLR 09/M03 A3006 RMK AO1 |
| 14:55 EST |  Clear | 10°C / 50°F | -3°C / 27°F | 40% | 1018 mb (30.06 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSFZ 041955Z 26004KT 10SM CLR 10/M03 A3005 RMK AO1 |
| 14:35 EST |  Clear | 10°C / 50°F | -3°C / 27°F | 40% | 1018 mb (30.06 in) | WNW 7 kph (WNW 4.6 mph) | - | 10SM |
| | KSFZ 041935Z 29004KT 10SM CLR 10/M03 A3005 RMK AO1 |
| 14:15 EST |  Clear | 10°C / 50°F | -3°C / 27°F | 40% | 1017 mb (30.03 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSFZ 041915Z 26005KT 10SM CLR 10/M03 A3004 RMK AO1 |
| 13:55 EST |  Clear | 11°C / 52°F | -2°C / 28°F | 41% | 1017 mb (30.03 in) | WNW 11 kph (WNW 6.9 mph) | - | 10SM |
| | KSFZ 041855Z 29006KT 10SM CLR 11/M02 A3004 RMK AO1 |
| 13:35 EST |  Clear | 11°C / 52°F | -2°C / 28°F | 41% | 1017 mb (30.03 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KSFZ 041835Z 28005KT 10SM CLR 11/M02 A3004 RMK AO1 |
| 13:15 EST |  Clear | 11°C / 52°F | -2°C / 28°F | 41% | 1017 mb (30.03 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KSFZ 041815Z 31006KT 10SM CLR 11/M02 A3004 RMK AO1 |
| 12:55 EST |  Clear | 11°C / 52°F | -2°C / 28°F | 41% | 1017 mb (30.03 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KSFZ 041755Z 30006KT 10SM CLR 11/M02 A3003 RMK AO1 10110 20030 57010 |
| 12:35 EST |  Clear | 11°C / 52°F | -2°C / 28°F | 41% | 1017 mb (30.03 in) | WNW 19 kph (WNW 11.5 mph) | - | 10SM |
| | KSFZ 041735Z 29010KT 240V300 10SM CLR 11/M02 A3004 RMK AO1 |
| 12:15 EST |  Clear | 11°C / 52°F | -1°C / 30°F | 44% | 1017 mb (30.03 in) | W 13 kph (W 8.1 mph) | - | 10SM |
| | KSFZ 041715Z 27007KT 240V300 10SM CLR 11/M01 A3004 RMK AO1 |
| 11:55 EST |  Clear | 10°C / 50°F | -2°C / 28°F | 43% | 1018 mb (30.06 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSFZ 041655Z 25005KT 10SM CLR 10/M02 A3005 RMK AO1 |
| 11:35 EST |  Clear | 10°C / 50°F | -1°C / 30°F | 47% | 1018 mb (30.06 in) | WNW 13 kph (WNW 8.1 mph) | - | 10SM |
| | KSFZ 041635Z 29007KT 10SM CLR 10/M01 A3005 RMK AO1 |
| 11:15 EST |  Clear | 9°C / 48°F | -1°C / 30°F | 50% | 1018 mb (30.06 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KSFZ 041615Z 31007KT 10SM CLR 09/M01 A3005 RMK AO1 |
| 10:55 EST |  Clear | 9°C / 48°F | -1°C / 30°F | 50% | 1018 mb (30.06 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSFZ 041555Z 26003KT 10SM CLR 09/M01 A3005 RMK AO1 |
| 10:35 EST |  Clear | 9°C / 48°F | -1°C / 30°F | 50% | 1018 mb (30.06 in) | WNW 15 kph (WNW 9.2 mph) | - | 10SM |
| | KSFZ 041535Z 29008KT 10SM CLR 09/M01 A3005 RMK AO1 |
| 10:15 EST |  Clear | 9°C / 48°F | -1°C / 30°F | 50% | 1018 mb (30.06 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KSFZ 041515Z 28010G15KT 10SM CLR 09/M01 A3005 RMK AO1 |
| 09:55 EST |  Clear | 8°C / 46°F | -1°C / 30°F | 53% | 1018 mb (30.06 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KSFZ 041455Z 31011KT 10SM CLR 08/M01 A3006 RMK AO1 52034 |
| 09:35 EST |  Clear | 8°C / 46°F | 0°C / 32°F | 57% | 1018 mb (30.06 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KSFZ 041435Z 30008KT 10SM CLR 08/00 A3006 RMK AO1 |
| 09:15 EST |  Clear | 8°C / 46°F | 0°C / 32°F | 57% | 1018 mb (30.06 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KSFZ 041415Z 30008KT 10SM CLR 08/00 A3005 RMK AO1 |
| 08:55 EST |  Clear | 7°C / 45°F | 1°C / 34°F | 66% | 1017 mb (30.03 in) | WNW 11 kph (WNW 6.9 mph) | - | 10SM |
| | KSFZ 041355Z 29006KT 10SM CLR 07/01 A3004 RMK AO1 |
| 08:35 EST |  Clear | 7°C / 45°F | 1°C / 34°F | 66% | 1017 mb (30.03 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSFZ 041335Z 25003KT 10SM CLR 07/01 A3003 RMK AO1 |
| 08:15 EST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1016 mb (30 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSFZ 041315Z 26004KT 10SM CLR 06/01 A3001 RMK AO1 |
| 07:55 EST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1016 mb (30 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KSFZ 041255Z 28005KT 10SM CLR 04/00 A3000 RMK AO1 |
| 07:35 EST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1016 mb (30 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KSFZ 041235Z 28004KT 10SM CLR 04/00 A2999 RMK AO1 |
| 07:15 EST |  Clear | 3°C / 37°F | 0°C / 32°F | 81% | 1015 mb (29.97 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KSFZ 041215Z 27004KT 10SM CLR 03/00 A2998 RMK AO1 |
| 06:55 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1015 mb (29.97 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KSFZ 041155Z 28004KT 10SM CLR 03/M01 A2996 RMK AO1 10080 20030 52020 |
| 06:35 EST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1014 mb (29.94 in) | WNW 7 kph (WNW 4.6 mph) | - | 10SM |
| | KSFZ 041135Z 29004KT 10SM CLR 04/00 A2995 RMK AO1 |
| 06:15 EST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1014 mb (29.94 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KSFZ 041115Z 30003KT 10SM CLR 04/00 A2995 RMK AO1 |
| 05:55 EST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1014 mb (29.94 in) | WNW 9 kph (WNW 5.8 mph) | - | 10SM |
| | KSFZ 041055Z 29005KT 10SM CLR 04/00 A2993 RMK AO1 |
| 05:35 EST |  Clear | 4°C / 39°F | 0°C / 32°F | 75% | 1014 mb (29.94 in) | WNW 7 kph (WNW 4.6 mph) | - | 10SM |
| | KSFZ 041035Z 29004KT 10SM CLR 04/00 A2993 RMK AO1 |
| 05:15 EST |  Clear | 3°C / 37°F | 0°C / 32°F | 81% | 1013 mb (29.91 in) | WNW 9 kph (WNW 5.8 mph) | - | 10SM |
| | KSFZ 041015Z 29005KT 10SM CLR 03/00 A2992 RMK AO1 |
| 04:55 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSFZ 040955Z 00000KT 10SM CLR 03/M01 A2991 RMK AO1 |
| 04:35 EST |  Clear | 5°C / 41°F | 0°C / 32°F | 70% | 1013 mb (29.91 in) | WNW 6 kph (WNW 3.5 mph) | - | 10SM |
| | KSFZ 040935Z 29003KT 10SM CLR 05/00 A2991 RMK AO1 |
| 04:15 EST |  Clear | 5°C / 41°F | 1°C / 34°F | 76% | 1013 mb (29.91 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KSFZ 040915Z 30004KT 10SM CLR 05/01 A2990 RMK AO1 |
| 03:55 EST |  Clear | 5°C / 41°F | 1°C / 34°F | 76% | 1013 mb (29.91 in) | WNW 9 kph (WNW 5.8 mph) | - | 10SM |
| | KSFZ 040855Z 29005KT 10SM CLR 05/01 A2990 RMK AO1 52034 |
| 03:35 EST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1012 mb (29.88 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KSFZ 040835Z 27004KT 10SM CLR 06/01 A2988 RMK AO1 |
| 03:15 EST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1012 mb (29.88 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KSFZ 040815Z 30007KT 10SM CLR 06/01 A2987 RMK AO1 |
| 02:55 EST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1011 mb (29.85 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KSFZ 040755Z 30006KT 10SM CLR 06/01 A2986 RMK AO1 |
| 02:35 EST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1011 mb (29.85 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KSFZ 040735Z 30007KT 10SM CLR 06/01 A2985 RMK AO1 |
| 02:15 EST |  Clear | 7°C / 45°F | 1°C / 34°F | 66% | 1011 mb (29.85 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KSFZ 040715Z 30006KT 10SM CLR 07/01 A2985 RMK AO1 |
| 01:35 EST |  Clear | 7°C / 45°F | 1°C / 34°F | 66% | 1010 mb (29.83 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KSFZ 040635Z 30008KT 10SM CLR 07/01 A2982 RMK AO1 |
| 01:15 EST |  Clear | 8°C / 46°F | 1°C / 34°F | 62% | 1009 mb (29.8 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KSFZ 040615Z 30007KT 10SM CLR 08/01 A2981 RMK AO1 |
| 00:55 EST |  Clear | 8°C / 46°F | 2°C / 36°F | 66% | 1009 mb (29.8 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KSFZ 040555Z 30006KT 10SM CLR 08/02 A2980 RMK AO1 10130 20080 52030 |
| 00:35 EST |  Clear | 8°C / 46°F | 2°C / 36°F | 66% | 1009 mb (29.8 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KSFZ 040535Z 30006KT 10SM CLR 08/02 A2979 RMK AO1 |
| 00:15 EST |  Clear | 8°C / 46°F | 2°C / 36°F | 66% | 1009 mb (29.8 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KSFZ 040515Z 32011G15KT 270V330 10SM CLR 08/02 A2979 RMK AO1 |