| 22:53 PST |  Overcast | 8°C / 46°F | 2°C / 36°F | 66% | 1024 mb (30.24 in) | Variable 9 kph (Variable 5.8 mph) | - | 10SM |
| | KBFI 010653Z VRB05KT 10SM OVC030 08/02 A3023 RMK AO2 SLP235 T00830022 |
| 21:53 PST |  Overcast | 8°C / 46°F | 3°C / 37°F | 71% | 1023 mb (30.21 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KBFI 010553Z 36004KT 10SM BKN035 OVC044 08/03 A3021 RMK AO2 SLP229 60000 T00830028 10100 20083 51014 |
| 20:53 PST |  Overcast | 9°C / 48°F | 4°C / 39°F | 71% | 1023 mb (30.21 in) | Variable 9 kph (Variable 5.8 mph) | 0.00 mm (0.00 in) | 10SM |
| | KBFI 010453Z VRB05KT 10SM SCT030 OVC037 09/04 A3020 RMK AO2 RAB02E20 SLP225 P0000 T00890039 |
| 19:53 PST |  Overcast | 9°C / 48°F | 7°C / 45°F | 87% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KBFI 010353Z 00000KT 10SM SCT013 BKN028 OVC036 09/07 A3019 RMK AO2 SLP221 T00940072 |
| 19:46 PST |  Overcast | 9°C / 48°F | 7°C / 45°F | 87% | 1022 mb (30.18 in) | Calm | - | 8SM |
| | KBFI 010346Z 00000KT 8SM SCT013 BKN026 OVC036 09/07 A3018 RMK AO2 |
| 18:53 PST |  Overcast | 10°C / 50°F | 6°C / 43°F | 76% | 1022 mb (30.18 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KBFI 010253Z 30004KT 10SM OVC036 10/06 A3017 RMK AO2 SLP215 60000 T01000061 53002 |
| 17:53 PST |  Mostly Cloudy | 10°C / 50°F | 7°C / 45°F | 82% | 1021 mb (30.15 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KBFI 010153Z 31003KT 10SM FEW013 BKN035 10/07 A3016 RMK AO2 SLP211 T01000072 |
| 16:53 PST |  Overcast | 10°C / 50°F | 8°C / 46°F | 88% | 1021 mb (30.15 in) | Calm | 0.00 mm (0.00 in) | 7SM |
| | KBFI 010053Z 00000KT 7SM BKN013 OVC017 10/08 A3016 RMK AO2 RAE2359 SLP213 P0000 T01000083 |
| 15:53 PST |  Overcast Light Rain | 10°C / 50°F | 8°C / 46°F | 88% | 1021 mb (30.15 in) | SSW 6 kph (SSW 3.5 mph) | 0.00 mm (0.00 in) | 8SM |
| | KBFI 302353Z 26003KT 8SM -RA BR FEW009 OVC015 10/08 A3016 RMK AO2 RAB53 SLP213 P0000 60000 T01000078 10111 20094 51007 |
| 14:53 PST |  Overcast | 11°C / 52°F | 7°C / 45°F | 77% | 1021 mb (30.15 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KBFI 302253Z 22004KT 10SM OVC017 11/07 A3016 RMK AO2 SLP212 T01110072 |
| 13:53 PST |  Overcast | 11°C / 52°F | 7°C / 45°F | 77% | 1021 mb (30.15 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KBFI 302153Z 24004KT 10SM OVC019 11/07 A3015 RMK AO2 SLP208 T01110072 |
| 12:53 PST |  Overcast | 11°C / 52°F | 7°C / 45°F | 77% | 1021 mb (30.15 in) | SSE 19 kph (SSE 11.5 mph) | - | 10SM |
| | KBFI 302053Z 20010G17KT 10SM OVC019 11/07 A3014 RMK AO2 SLP206 T01110067 56011 |
| 11:53 PST |  Overcast | 11°C / 52°F | 7°C / 45°F | 77% | 1021 mb (30.15 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KBFI 301953Z 16008G16KT 10SM OVC017 11/07 A3014 RMK AO2 SLP207 T01060067 |
| 10:53 PST |  Overcast | 9°C / 48°F | 6°C / 43°F | 82% | 1021 mb (30.15 in) | SSE 19 kph (SSE 11.5 mph) | - | 10SM |
| | KBFI 301853Z 16010KT 10SM OVC014 09/06 A3016 RMK AO2 SLP212 T00940056 |
| 09:53 PST |  Overcast | 9°C / 48°F | 6°C / 43°F | 82% | 1022 mb (30.18 in) | SSE 24 kph (SSE 15 mph) | - | 10SM |
| | KBFI 301753Z 16013G18KT 10SM OVC014 09/06 A3017 RMK AO2 SLP217 T00940061 10094 20083 58005 |
| 08:53 PST |  Overcast | 9°C / 48°F | 6°C / 43°F | 82% | 1022 mb (30.18 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KBFI 301653Z 15006KT 10SM OVC014 09/06 A3018 RMK AO2 SLP219 T00890056 |
| 07:53 PST |  Overcast | 9°C / 48°F | 6°C / 43°F | 82% | 1022 mb (30.18 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KBFI 301553Z 16009KT 10SM OVC016 09/06 A3019 RMK AO2 SLP222 T00890061 |
| 06:53 PST |  Overcast | 9°C / 48°F | 6°C / 43°F | 82% | 1022 mb (30.18 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KBFI 301453Z 16007KT 10SM OVC014 09/06 A3019 RMK AO2 SLP222 T00940061 55005 |
| 06:49 PST |  Overcast | 9°C / 48°F | 6°C / 43°F | 82% | 1022 mb (30.18 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KBFI 301449Z 17007KT 10SM OVC014 09/06 A3019 RMK AO2 |
| 05:53 PST |  Overcast | 9°C / 48°F | 7°C / 45°F | 87% | 1023 mb (30.21 in) | SSE 17 kph (SSE 10.4 mph) | - | 10SM |
| | KBFI 301353Z 15009KT 10SM OVC021 09/07 A3020 RMK AO2 SLP226 T00940067 $ |
| 04:53 PST |  Overcast | 9°C / 48°F | 7°C / 45°F | 87% | 1023 mb (30.21 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KBFI 301253Z AUTO 14006KT 10SM BKN019 OVC024 09/07 A3021 RMK AO2 SLP228 T00940067 TSNO $ |
| 03:53 PST |  Overcast | 9°C / 48°F | 7°C / 45°F | 87% | 1023 mb (30.21 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KBFI 301153Z AUTO 14006KT 10SM OVC022 09/07 A3022 RMK AO2 SLP231 T00940072 10100 20094 58013 TSNO $ |
| 03:03 PST |  Overcast | 9°C / 48°F | 7°C / 45°F | 87% | 1024 mb (30.24 in) | SE 11 kph (SE 6.9 mph) | - | 10SM |
| | KBFI 301103Z AUTO 14006KT 10SM SCT012 OVC022 09/07 A3023 RMK AO2 TSNO $ |
| 02:53 PST |  Overcast | 9°C / 48°F | 7°C / 45°F | 87% | 1024 mb (30.24 in) | SE 13 kph (SE 8.1 mph) | - | 10SM |
| | KBFI 301053Z AUTO 14007KT 10SM BKN012 OVC022 09/07 A3023 RMK AO2 SLP236 T00940072 TSNO $ |
| 02:43 PST |  Overcast | 9°C / 48°F | 7°C / 45°F | 87% | 1024 mb (30.24 in) | SE 13 kph (SE 8.1 mph) | - | 10SM |
| | KBFI 301043Z 14007KT 10SM BKN012 BKN017 OVC022 09/07 A3023 RMK AO2 $ |
| 01:53 PST |  Overcast | 10°C / 50°F | 8°C / 46°F | 88% | 1024 mb (30.24 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KBFI 300953Z 16005KT 10SM OVC024 10/08 A3024 RMK AO2 SLP240 T01000078 $ |
| 00:53 PST |  Overcast | 10°C / 50°F | 8°C / 46°F | 88% | 1024 mb (30.24 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KBFI 300853Z 15005KT 10SM OVC024 10/08 A3025 RMK AO2 SLP244 T01000078 58009 $ |