America’s job market recovery is chugging along, but worries about the Delta variant derailing progress are rampant. Even as economists anticipate the best gains since last summer in Friday’s jobs report, persistently high unemployment claims and a big miss in the private sector payroll report put a damper on the excitement.

“The labor market recovery still has legs but it’s likely going to be an uneven path going forward,” ADP chief economist Nela Richardson told reporters on a press call Wednesday, pointing to the Covid-19 variants, labor shortages and supply chain bottlenecks.

It’s still a tale of two recoveries. On one hand, the labor market continues to improve as the economy normalizes. Strong consumer confidence and spending are helping get things back on track.

Our economic recovery has been record-breaking – but don’t get used to it

But at the same time, worker shortages and supply chain disruptions are holding the recovery back in some sectors, especially when it comes to hiring.

Last week, the Centers for Disease Control and Prevention updated its mask guidance for those who have been vaccinated, and New York City announced that patrons and employees in restaurants and gyms will to have to show proof of vaccination. The health of the near-term jobs recovery will ride on how comfortable both consumers and employees feel about being around others.

“We do expect job gains to continue but we are aware that in the near-term there are some challenges that are unprecedented,” Richardson said. “The overall take-away is this recovery is happening, but its path is just something we’ve never seen before.”

For Friday’s jobs report, due at 8:30 am ET, economists polled by Refinitiv forecast 870,000 jobs were added in July, a slight downward shift after forecasts topped the 900,000 mark last week.

Still, that would be an increase from the 850,000 jobs added in June and mark the largest jobs gain since August of last year. But the range of expectations is wide. Wall Street banks Goldman Sachs and Citi predict 1.15 million jobs added, while research firm Action Economics expects 600,000.

The nationwide unemployment rate is expected to be 5.7%.

Not a typical summer

The July report could also be subject to some seasonal weirdness, warned ZipRecruiter labor economist Julia Pollak.

In a normal July, school and university workers take a summer break, which shows up in the data. But this year, layoffs in education were likely much lower than normal because so many workers were let go last year due to the pandemic. Meanwhile, other parts of the economy — such as the services sector — are still adding back the millions of jobs lost in 2020. This could mean seasonal adjustments might distort Friday’s data, Pollak said.

But she is also looking for some improvement in the labor force participation rate, given recent increases in online job search activity.

That said, Wednesday’s private payrolls report from ADP sharply underperformed forecasts. The 330,000 jobs added in July were less than half what was expected. And even though the ADP report and the government’s job count aren’t correlated, the former is considered a bellwether for the official numbers.

Meanwhile, claims for unemployment benefits have remained stubbornly high throughout the summer. Inching up and down from week to week, claims have remained close to the 400,000 mark. On Thursday, initial benefit applications for the prior week stood at 385,000 adjusted for seasonal swings, little changed from the week before.

Even though jobless claims have come down from their sky-high levels from last year, they are persistently higher than pre-pandemic levels — underscoring the lingering uncertainty in the labor market even as businesses are hiring and more people get vaccinated, Richardson said.