diff --git a/src/integrations/schema.js b/src/integrations/schema.js
index 4b9079a..2c5958e 100644
--- a/src/integrations/schema.js
+++ b/src/integrations/schema.js
@@ -60,7 +60,13 @@ export const INTEGRATIONS = {
   met_office: {
     name: 'Met Office DataHub',
     configFields: [],
-    secretFields: ['api_key'],
+    // Met Office DataHub sells the "Global Spot" and "Forecast" site-specific
+    // products as separate subscriptions, each with its own API key — api_key is
+    // Spot (used for the daily endpoint, confirmed live via hvac); forecast_api_key
+    // is optional and, if set, is what weather's hourly/three-hourly endpoints try
+    // first (falling back to api_key, then to Open-Meteo, per tier — see weather's
+    // lib/weather-fetch.js). Leave it blank if you only have a Spot subscription.
+    secretFields: ['api_key', 'forecast_api_key'],
   },
 }
 
diff --git a/src/routes/integrations.js b/src/routes/integrations.js
index 76ac858..94251d9 100644
--- a/src/routes/integrations.js
+++ b/src/routes/integrations.js
@@ -171,12 +171,26 @@ export async function integrationRoutes(app) {
         const { rows: [loc] } = await pool.query(`SELECT config FROM integrations WHERE slug = 'hotel_location'`)
         const lat = loc?.config?.latitude || '51.5072'
         const lon = loc?.config?.longitude || '-0.1276'
-        const res = await fetch(
+        // Two separate subscriptions, two separate keys — test each against the
+        // endpoint weather actually uses it for (Spot -> daily, Forecast ->
+        // hourly). forecast_api_key is optional, only tested if set.
+        const errors = []
+        const dailyRes = await fetch(
           `https://data.hub.api.metoffice.gov.uk/sitespecific/v0/point/daily?latitude=${lat}&longitude=${lon}`,
           { headers: { apikey: creds.api_key }, signal: AbortSignal.timeout(8000) }
         )
-        if (res.status === 401 || res.status === 403) throw new Error('Invalid Met Office API key')
-        if (!res.ok) throw new Error(`Met Office DataHub returned ${res.status}`)
+        if (dailyRes.status === 401 || dailyRes.status === 403) errors.push('Spot key: invalid or not subscribed to the daily endpoint')
+        else if (!dailyRes.ok) errors.push(`Spot key: daily endpoint returned ${dailyRes.status}`)
+
+        if (creds.forecast_api_key) {
+          const hourlyRes = await fetch(
+            `https://data.hub.api.metoffice.gov.uk/sitespecific/v0/point/hourly?latitude=${lat}&longitude=${lon}`,
+            { headers: { apikey: creds.forecast_api_key }, signal: AbortSignal.timeout(8000) }
+          )
+          if (hourlyRes.status === 401 || hourlyRes.status === 403) errors.push('Forecast key: invalid or not subscribed to the hourly endpoint')
+          else if (!hourlyRes.ok) errors.push(`Forecast key: hourly endpoint returned ${hourlyRes.status}`)
+        }
+        if (errors.length) throw new Error(errors.join(' | '))
       }
       else if (req.params.slug === 'sambapos') {
         const errors = []