The National Weather Service says a tropical disturbance and a low pressure system will combine to create moderate to heavy rain across the entire state.

Meteorologist Tom Hawley says the heaviest rain will run from Friday night into Saturday morning. He says the entire state should see 1 to 2.5 inches of rain before it ends early Sunday.

The rain is needed. The federal government says more than 1.2 million residents — nearly all of Maine’s population — are currently dealing with moderate to extreme drought conditions.