Warmer, Rainy Week Expected in Lehigh Valley

Thunderstorms possible as cold front moves through midweek

Mar. 30, 2026 at 12:03pm

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A sweeping, atmospheric landscape painting depicting a vast, stormy sky filled with dark, billowing clouds and heavy rain, dwarfing any small structures or objects in the foreground.As a cold front moves through the Lehigh Valley, the region braces for a week of warmer temperatures and unsettled weather, with the potential for thunderstorms and heavy rainfall.Allentown Today

The Lehigh Valley is expected to see warmer temperatures and a chance of rain every day this week, with thunderstorms possible Monday through Wednesday as a cold front moves through the region. Highs are predicted to reach the 60s and 70s, with overnight lows in the 50s.

Why it matters

The wet weather comes during a dry period for the Lehigh Valley, with both Lehigh and Northampton counties currently under drought conditions. The rain could provide some relief, but forecasters warn that severe weather is less likely despite the chance of thunderstorms.

The details

According to the National Weather Service in Mount Holly, New Jersey, a cold front will move through the Lehigh Valley on Wednesday, bringing showers and thunderstorms. While severe weather is not expected, temperatures will briefly fall before warming back up through the weekend. Rain is also possible Thursday into the weekend, but forecasters say none of those days will be a 'washout'.

  • Scattered showers and thunderstorms are possible before 11 a.m. on Tuesday.
  • A chance of rain and thunderstorms is expected between 11 a.m. and 2 p.m. on Wednesday, followed by likely rain and possibly a thunderstorm after 2 p.m.
  • A chance of rain is forecast for Thursday, Friday, Saturday, and Sunday.

The players

National Weather Service in Mount Holly

The regional office of the National Weather Service that provides weather forecasts and information for the Lehigh Valley area.

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What they’re saying

“Overall, it will be warm though a bit unsettled, especially as we get towards the middle of the week. Some record highs may be challenged on Wednesday before a cold front moves in.”

— NWS Mount Holly

The takeaway

The warmer, rainy weather this week in the Lehigh Valley could provide some relief from the ongoing drought conditions, but the region should still prepare for the possibility of thunderstorms and unsettled weather, especially in the middle of the week.