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Boston forecast

Forecast Highs Lows Rain Model accuracy

Boston, Logan station · using data from 2026-10-16T00:50 UTC · from the forecast models, not an official forecast

Today · Oct 15
partly cloudy62° / 50°

models 60–63°

Rain 0%

Model agreement
High good Low fair Rain good
Tomorrow · Oct 16
rain69° / 49°

models 65–71°

Rain 100% · 0.23 in

Model agreement
High good Low good Rain good

What changed Sun Oct 18: Fire danger appears in the forecast — humidity down to 23%

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After tomorrow

Model agreement

How to read this

The big number is our blend of every model, each corrected by how it has verified here. Where there is no blend yet, it is the middle model's.

Under it, the range is the lowest and highest high the forecast models give for the day. Where they disagree a lot, the two models at the ends are named.

Rain is the middle model's chance of rain and the middle model's total.

Model agreement is how close the models' forecasts for one day sit to each other once each model's usual lean at the place is set aside, judged separately for the high, the low and rain: good, fair or poor against how far apart they usually are that many days out, and for rain against the band of chances where a plan changes.

These are the numbers from the models' last run we stored, at the time above. They are not an official forecast, and this page carries no weather warnings: for those, see the National Weather Service.

SatOct 17
drizzle
64° / 39°58–64°
50%22–80%
High fair Low fair Rain poor
SunOct 18
clear
55° / 36°49–59°
0%
High poor Low fair Rain good GEM 49° to AIGFS 59°
MonOct 19
cloudy
59° / 41°55–64°
14%6–20%
High fair Low poor Rain good low 38–49°
TueOct 20
cloudy
60° / 46°
10%6–20%
High good Low fair Rain good
WedOct 21
partly cloudy
57° / 49°53–60°
6%0–13%
High good Low good Rain good
ThuOct 22
drizzle
55° / 48°52–56°
2% · 0.02 in0–20%
High good Low fair Rain good
FriOct 23
cloudy
61° / 44°54–65°
6%0–18%
High good Low good Rain good
Show all 12 days
SatOct 24
partly cloudy
58° / 48°54–62°
6%6–24%
High good Low good Rain good
SunOct 25
cloudy
60° / 47°55–66°
11%
High good Low good Rain good
MonOct 26
cloudy
60° / 48°52–68°
15%
High fair Low fair Rain good
TueOct 27
cloudy
59° / 49°53–61°
20%
High good Low fair Rain good
WedOct 28
drizzle
60° / 50°54–65°
19%
High good Low good Rain good

Going deeper

Each model's high, day by day → Each model's low → Each model's rain → Which models have been right here →