Tomorrow | Weather | Boston, Massachusetts

Active Weather Warnings
Wednesday, July 15, 2026
Sunny with a Chance of Thunderstorms
Day 91°
Night 70°
Precipitation 55 %
Wind 13 mph
UV Index (0 - 11+) 10
Weather Forecast History
Last Year's Weather on This Day (July 15, 2025)
Cloudy Weather

Day

88°

Night

70°

Wind

7 mph

UV Index

10

Precipitation

25 %

Weather Alerts and Warnings for

Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 14 at 1:51AM EDT until July 15 at 8:00PM EDT by NWS Boston/Norton MA
Jul 14, 11:00 AM Jul 15, 8:00 PM
WHAT: Heat index values up to 101 expected.

WHERE: Portions of northern Connecticut, central, eastern,
northeastern, southeastern, and western Massachusetts, and
northern and southern Rhode Island.

WHEN: From 11 AM this morning to 8 PM EDT Wednesday.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Updated: Jul 14, 7:27 AM Source: NWS Alert