Step 1: Triple click the home button to activate Voice Over
Step 2: Triple click the home button and Emergency Call will appear.
Step 3: Click on Emergency Call and, while it's switching, swipe with your three fingers down.
Step 4: The Notification Center will appear!
Step 5: Click on the Weather widget and wait for the weather app to load.
Step 6: Click on the home button to exit to the iPhone's springboard.