diff --git a/homeassistant/components/sensor/wunderground.py b/homeassistant/components/sensor/wunderground.py
index 512a937650f..82bb3d3b245 100644
--- a/homeassistant/components/sensor/wunderground.py
+++ b/homeassistant/components/sensor/wunderground.py
@@ -222,7 +222,6 @@ class WUndergroundData(object):
         except ValueError as err:
             _LOGGER.error("Check WUnderground API %s", err.args)
             self.data = None
-            raise
 
     @Throttle(MIN_TIME_BETWEEN_UPDATES_ALERTS)
     def update_alerts(self):
@@ -237,4 +236,3 @@ class WUndergroundData(object):
         except ValueError as err:
             _LOGGER.error("Check WUnderground API %s", err.args)
             self.alerts = None
-            raise
diff --git a/tests/components/sensor/test_wunderground.py b/tests/components/sensor/test_wunderground.py
index fb76b93885a..cde94558866 100644
--- a/tests/components/sensor/test_wunderground.py
+++ b/tests/components/sensor/test_wunderground.py
@@ -137,7 +137,7 @@ class TestWundergroundSetup(unittest.TestCase):
             ]
         }
 
-        self.assertFalse(
+        self.assertTrue(
             wunderground.setup_platform(self.hass, invalid_config,
                                         self.add_devices, None))