Fire crews and water bombers are scrambling to put out a grass fire as strong winds bear down on the NSW Riverina village of Oura.

About 100 firefighters and 25 trucks are protecting Oura, east of Wagga Wagga.

Temperatures in the area are set to reach 41C on Tuesday with wind gusts of 70km/h.

Two helicopters are water bombing smouldering hills near a winery and dairy farms.

Rural Fire Service officer Lesley Lemon said the fire was only a couple of kilometres away from homes.

There has been no damage to property yet.

It's believed the fire started on Saturday following lightning strikes.

Oura residents were evacuated at noon on Monday but were allowed to return home later in the afternoon.

Many had a sleepless night, on alert for changes in weather and fire conditions.

Ms Lemon said most people in the village of fewer than 400 were well prepared to defend their properties.

"Conditions did not ease much overnight," she told AAP, adding it was 30 degrees at 4.30am (AEDT) on Tuesday.

Fire crews were coping well with fatigue and the hot, blustery conditions.

A sign says, "Welcome to Oura somewhere on the Murrumbidgee", but floods in 2012 and fires are putting the village on the map.

Mother-of-two Tanya Blondinau was not taking any chances with her young family even when authorities gave the all-clear to return home late Monday afternoon.

"We came back out last night," she said.

"I saw a bit of a lightning storm, there were embers everywhere.

"I didn't feel comfortable having our kids here."

The family, who moved to Oura in November, spent a restless night at a friend's home in Wagga Wagga.

Ms Blondinau is volunteering at the Oura fire station, making sandwiches for hungry firefighters.

Her children Piper, 2, and Nate, 3, are at a child care centre in Wagga Wagga.

"They don't really know what's going on," she said.

"They came for a drive yesterday afternoon and were excited to see the fire trucks and the helicopters."

Ms Blondinau said she felt a bit teary packing the car with photos, important documents and the kids' favourite toys.

Work colleagues lent a hand by moving car loads of possessions.