Weather Seattle Today – Temperature, Rain & Hourly Forecast
Monday, 21/09/2026
15°
Clear sky · Feels like 14°
Updated 10 hours ago
- High/Low
- 20°/10°
- Humidity
- 78%
- Wind
- 8 km/h
- Rainfall
- 0.0 mm
- UV index
- 4.3
- Pressure
- 1015 hPa
- Sunrise
- 06:54
- Sunset
- 19:08
Today
00
06
12
18
00:0006:0012:0018:00
Summary
Seattle is comfortable today, 10–20°C, with overcast.
Rain is unlikely all day.
Maximum UV of 4.3 at 14:00 — wear a hat for longer stints outdoors.
Humidity of 78% pushes the felt temperature to 14°C.
Wind runs 11 km/h out of the north-east.
Temperatures hold steady near 20°C through the week.
The wettest day ahead is Thursday 24/09 with about 11 mm.
Sunrise 06:54, sunset 19:08.
Best time to visit
Outdoor heat stress
18°C
Peaks at 19:00 — safe
Dry riding window
19:00–09:00
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
06:56
100% cloud at sunrise — thick cloud, poor visibility
Skin protection
4.3
Unprotected skin may burn in about 45 minutes
48-hour forecast
19:00
18°
0%
20:00
16°
1%
21:00
15°
0%
22:00
14°
0%
23:00
14°
0%
00:00
13°
0%
01:00
14°
0%
02:00
14°
1%
03:00
14°
1%
04:00
13°
1%
05:00
13°
2%
06:00
13°
4%
07:00
13°
4%
08:00
13°
10%
09:00
13°
10%
10:00
13°
10%
11:00
15°
10%
12:00
15°
2%
13:00
15°
2%
14:00
15°
2%
15:00
17°
2%
16:00
18°
2%
17:00
18°
2%
18:00
17°
1%
19:00
15°
1%
20:00
13°
1%
21:00
13°
1%
22:00
12°
1%
23:00
12°
1%
00:00
13°
2%
01:00
12°
2%
02:00
11°
2%
03:00
11°
2%
04:00
10°
2%
05:00
10°
2%
06:00
10°
5%
07:00
10°
5%
08:00
11°
5%
09:00
12°
5%
10:00
14°
5%
11:00
15°
5%
12:00
17°
2%
13:00
19°
2%
14:00
20°
2%
15:00
20°
2%
16:00
20°
2%
17:00
20°
2%
18:00
18°
1%
Days ahead
| Today | Low/High | Chance of rain | Rainfall | |
|---|---|---|---|---|
| Today 21/09 | Overcast | 10°20° | 1% | 0.0 mm |
| Tomorrow 22/09 | Overcast | 12°18° | 10% | 0.0 mm |
| Wednesday 23/09 | Overcast | 10°20° | 5% | 0.0 mm |
| Thursday 24/09 | Light rain | 11°15° | 50% | 11.0 mm |
| Friday 25/09 | Light showers | 9°19° | 55% | 6.3 mm |
Monthly averages
Common questions
Will it rain in Seattle today?
No. The chance of rain today is only about 1%.
How hot is it in Seattle today?
Between 10°C and 20°C, with a felt maximum of 20°C.
What is the weather in Seattle tomorrow?
Tomorrow: overcast, 12–18°C, with a 10% chance of rain.