Boston Weather on Wednesday, October 21, 2026

What to wear and what to watch out for

• Cool in the morning and evening: dress in layers and bring a sweater or jacket.

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• New York City16° / 10°302 km
• Seaside Heights15° / 12°369 km
• Philadelphia17° / 9°435 km
• Strasburg, Pennsylvania16° / 5°504 km
• Washington18° / 10°635 km
• Buffalo16° / 6°642 km
• Ashland, Virginia19° / 7°748 km
• Columbus20° / 10°1,034 km

Frequently asked questions

Will it rain in Boston on Wednesday, October 21, 2026?

Most likely not: the chance of rain is 15%.

What will the temperature be in Boston on Wednesday, October 21, 2026?

A high of 12°C and a low of 9°C are expected. Conditions: light drizzle.

What time are sunrise and sunset in Boston on October 21, 2026?

Sunrise is at 07:04 and sunset at 17:52 (local time); day length 10 h 49 min.

How reliable is this forecast?

Forecasts for the first 3 days are usually highly accurate; this page is updated about every 30 minutes.