{"source":"Fuel Signal","documentation":"https://fuelsignal.org/llms.txt","disclaimer":"Estimated outlook from public market data, not a quote for a specific station. Forecasts are uncertain, AI-assisted analysis can be wrong, and future prices or savings are not guaranteed.","generatedAt":"2026-10-19T03:44:02.383Z","region":{"name":"Washington","countryCode":"US","countryName":"United States","stateCode":"WA","stateName":"Washington","page":"https://fuelsignal.org/forecast/united-states/washington","data":"https://fuelsignal.org/forecast.json?country=US&state=WA"},"forecasts":{"petrol":{"status":"current","headline":"Prices may rise","direction":"up","advice":"fill_now","adviceText":"Buying sooner may be worthwhile","pressure":25,"confidence":"moderate","horizon":"Next 1–3 days · Washington, US · petrol","horizonHours":72,"rationale":"On balance, historical trends and the latest recorded conditions lean toward higher fuel prices. Latest recorded Brent is -1.70% versus 2026-10-17 16:49 UTC; the longer comparison is +4.92%.","drivers":[{"label":"Oil price trend","description":"Latest recorded Brent is -1.70% versus 2026-10-17 16:49 UTC; the longer comparison is +4.92%.","contribution":18,"observedAt":"2026-10-19T03:29:51.417Z","source":"https://straits.live/api"},{"label":"Strait of Hormuz shipping","description":"Latest recorded Strait access is closed. This is supply-risk context, not a measurement of oil volume.","contribution":10,"observedAt":"2026-10-19T03:37:11.106Z","source":"https://straits.live"},{"label":"Local pump prices","description":"Washington, US petrol records changed -0.39% since 2026-10-16.","contribution":-3,"observedAt":"2026-10-18","source":"https://gasprices.aaa.com/state-gas-price-averages/"}],"limitations":["An estimated outlook, not a validated forecast of station prices.","Too few completed comparable periods for a historical-outcome signal; the view uses observed trends and current context.","Live AI research is delayed; previously sourced incidents keep their original dates and lose weight with age."],"generatedAt":"2026-10-19T03:43:04.737Z","expiresAt":"2026-10-19T03:46:04.737Z"},"diesel":{"status":"current","headline":"Prices may rise","direction":"up","advice":"fill_now","adviceText":"Buying sooner may be worthwhile","pressure":28,"confidence":"moderate","horizon":"Next 1–3 days · Washington, US · diesel","horizonHours":72,"rationale":"On balance, historical trends and the latest recorded conditions lean toward higher fuel prices. Latest recorded Brent is -1.70% versus 2026-10-17 16:49 UTC; the longer comparison is +4.92%.","drivers":[{"label":"Oil price trend","description":"Latest recorded Brent is -1.70% versus 2026-10-17 16:49 UTC; the longer comparison is +4.92%.","contribution":18,"observedAt":"2026-10-19T03:29:51.417Z","source":"https://straits.live/api"},{"label":"Strait of Hormuz shipping","description":"Latest recorded Strait access is closed. This is supply-risk context, not a measurement of oil volume.","contribution":10,"observedAt":"2026-10-19T03:37:11.106Z","source":"https://straits.live"},{"label":"Local pump prices","description":"Washington, US diesel records changed +0.05% since 2026-10-16.","contribution":0,"observedAt":"2026-10-18","source":"https://gasprices.aaa.com/state-gas-price-averages/"}],"limitations":["An estimated outlook, not a validated forecast of station prices.","Too few completed comparable periods for a historical-outcome signal; the view uses observed trends and current context.","Live AI research is delayed; previously sourced incidents keep their original dates and lose weight with age."],"generatedAt":"2026-10-19T03:43:04.737Z","expiresAt":"2026-10-19T03:46:04.737Z"}},"prices":{"area":"State average","currency":"USD","available":true,"grades":{"petrol":{"price":5.3898,"unit":"gallon"},"midgrade":{"price":5.6659,"unit":"gallon"},"premium":{"price":5.9171,"unit":"gallon"},"diesel":{"price":7.3089,"unit":"gallon"}},"sources":["AAA / OPIS"],"sourceUrl":"https://gasprices.aaa.com/state-gas-price-averages/","collectedAt":"2026-10-19T01:20:02.980Z","publishedOn":"2026-10-18","stale":false}}