diff --git a/test/towerops/workers/weather_sync_worker_test.exs b/test/towerops/workers/weather_sync_worker_test.exs
index 5ff1442a..6e8452b7 100644
--- a/test/towerops/workers/weather_sync_worker_test.exs
+++ b/test/towerops/workers/weather_sync_worker_test.exs
@@ -1,6 +1,7 @@
 defmodule Towerops.Workers.WeatherSyncWorkerTest do
   use Towerops.DataCase, async: false
 
+  alias Towerops.Weather.Client
   alias Towerops.Workers.WeatherSyncWorker
 
   setup do
@@ -37,5 +38,55 @@ defmodule Towerops.Workers.WeatherSyncWorkerTest do
       # through cleanup_old_observations and schedule_next.
       assert :ok = WeatherSyncWorker.perform(%Oban.Job{})
     end
+
+    test "logs and fetches weather for a site with coordinates" do
+      Application.put_env(:towerops, :openweathermap_api_key, "test-key")
+
+      # Stub OpenWeatherMap so fetch_and_store succeeds.
+      Req.Test.stub(Client, fn conn ->
+        Req.Test.json(conn, %{
+          "main" => %{"temp" => 290.0, "humidity" => 60, "pressure" => 1013},
+          "wind" => %{"speed" => 3.5},
+          "weather" => [%{"main" => "Clear", "description" => "clear sky"}]
+        })
+      end)
+
+      user = Towerops.AccountsFixtures.user_fixture()
+      organization = Towerops.OrganizationsFixtures.organization_fixture(user.id)
+
+      {:ok, _site} =
+        Towerops.Sites.create_site(%{
+          name: "Sunny Site",
+          organization_id: organization.id,
+          latitude: 30.27,
+          longitude: -97.74
+        })
+
+      # The worker spawns the sync logic synchronously inside :ok branch.
+      # Note: the per-site rate-limit Process.sleep only fires for idx > 1, so
+      # with a single site we don't pay that 1.1s tax in tests.
+      assert :ok = WeatherSyncWorker.perform(%Oban.Job{})
+    end
+
+    test "still returns :ok when fetch_and_store fails for the site" do
+      Application.put_env(:towerops, :openweathermap_api_key, "test-key")
+
+      Req.Test.stub(Client, fn conn ->
+        conn |> Plug.Conn.put_status(401) |> Req.Test.json(%{"error" => "invalid"})
+      end)
+
+      user = Towerops.AccountsFixtures.user_fixture()
+      organization = Towerops.OrganizationsFixtures.organization_fixture(user.id)
+
+      {:ok, _site} =
+        Towerops.Sites.create_site(%{
+          name: "Failing Site",
+          organization_id: organization.id,
+          latitude: 30.27,
+          longitude: -97.74
+        })
+
+      assert :ok = WeatherSyncWorker.perform(%Oban.Job{})
+    end
   end
 end