SpringPeak season ~70°F highs

Things to do in Allentown in May

May is one of the best months to visit Allentown, with average highs around 70°F. Blooming parks and mild days make it easy to pack in sights.

Plan a May weekend Where else in May

Best picks for May

What's famous here, weighted toward what shines in May.

1Spring blooms

Nockamixon State Park

State park in Pennsylvania, United States

2Spring blooms

Beltzville State Park

State park in Pennsylvania, United States

3Spring blooms

Holidays in May 2027

Memorial Day · Mon, May 31

Expect busier roads and pricier stays around these dates. See long weekends.

Also great in May in Pennsylvania

Philadelphia Lancaster

Allentown in May: quick answers

Is May a good time to visit Allentown?

May is one of the best months to visit Allentown, with average highs around 70°F. Blooming parks and mild days make it easy to pack in sights.

What is the weather like in Allentown in May?

Average daytime highs are around 70°F, compared with 87°F in the warmest month. Check the forecast a week out; our planner favors indoor stops on rainy days.

What are the best things to do in Allentown in May?

Top picks for May: Nockamixon State Park, Beltzville State Park, Jacobsburg Environmental Education Center, Locust Lake State Park, Ringing Rocks County Park.