Weather Boston Today – Temperature, Rain & Hourly Forecast
Monday, 21/09/2026
15°
Light drizzle · Feels like 17°
Updated 11 hours ago
- High/Low
- 19°/13°
- Humidity
- 96%
- Wind
- 3 km/h
- Rainfall
- 1.7 mm
- UV index
- 5.8
- Pressure
- 1016 hPa
- Sunrise
- 06:30
- Sunset
- 18:43
Today
00
06
12
18
00:0006:0012:0018:00
Summary
Boston is comfortable today, 13–19°C, skies are drizzle.
Scattered showers near 01:00–04:00, about 1.7 mm.
UV peaks at 5.8 around 13:00 — wear a hat for longer stints outdoors.
At 96% humidity it feels like 17°C.
Winds of 18 km/h from the north-east.
Temperatures ease off, bottoming out at 12°C on Tuesday 22/09.
The wettest day ahead is Saturday 26/09 with about 15 mm.
Sunrise 06:30, sunset 18:43.
Best time to visit
Outdoor heat stress
14°C
Peaks at 20:00 — safe
Dry riding window
20:00–10:00
14 hours dry; 1 window(s) in the next 14 hours
Drying laundry
Workable
0 sunny hours, 0 wet hours between 07:00 and 17:00
Sunrise viewing
06:31
100% cloud at sunrise — thick cloud, poor visibility
Skin protection
5.8
Unprotected skin may burn in about 45 minutes
48-hour forecast
20:00
14°
0%
21:00
14°
0%
22:00
14°
0%
23:00
13°
0%
00:00
13°
0%
01:00
13°
0%
02:00
13°
0%
03:00
14°
0%
04:00
13°
0%
05:00
13°
0%
06:00
12°
0%
07:00
12°
0%
08:00
13°
1%
09:00
14°
0%
10:00
15°
0%
11:00
16°
1%
12:00
16°
1%
13:00
17°
1%
14:00
16°
1%
15:00
16°
1%
16:00
16°
1%
17:00
15°
1%
18:00
14°
1%
19:00
13°
1%
20:00
13°
1%
21:00
14°
1%
22:00
14°
1%
23:00
14°
1%
00:00
14°
1%
01:00
14°
1%
02:00
14°
1%
03:00
14°
1%
04:00
14°
1%
05:00
14°
1%
06:00
15°
1%
07:00
14°
1%
08:00
15°
1%
09:00
15°
2%
10:00
15°
2%
11:00
15°
2%
12:00
15°
2%
13:00
15°
2%
14:00
15°
2%
15:00
15°
1%
16:00
15°
1%
17:00
14°
1%
18:00
14°
1%
19:00
14°
1%
Days ahead
| Today | Low/High | Chance of rain | Rainfall | |
|---|---|---|---|---|
| Today 21/09 | Drizzle | 13°19° | 53% | 1.7 mm |
| Tomorrow 22/09 | Overcast | 12°17° | 1% | 0.0 mm |
| Wednesday 23/09 | Light drizzle | 14°15° | 2% | 0.1 mm |
| Thursday 24/09 | Light drizzle | 13°16° | 12% | 0.2 mm |
| Friday 25/09 | Drizzle | 14°17° | 50% | 1.8 mm |
Monthly averages
Common questions
Will it rain in Boston today?
Yes. Rain is expected around 01:00–04:00, totalling roughly 1.7 mm.
How hot is it in Boston today?
Between 13°C and 19°C, with a felt maximum of 18°C.
What is the weather in Boston tomorrow?
Tomorrow: overcast, 12–17°C, with a 1% chance of rain.