Caernarfon, United Kingdom Weather
53.141, -4.270 · Europe/London
Updated Oct 20, 2:00 AM | Source Open-Meteo
Current weather in Caernarfon, United Kingdom is 42°F / 5°C and clear sky with winds at 5 mph from the northeast. Humidity is 90%, with a 42% chance of precipitation today. The 7-day outlook shows highs of 50 to 61°F (10 to 16°C) and lows of 41 to 50°F (5 to 10°C). Warming trend through the week; rain is likely on most days; winds pick up on 1 day. Sky conditions tonight: Poor for stargazing (about 61% forecast cloud cover).
Current conditions
42°F
Clear sky
High 52°F / 11°C · Low 41°F / 5°C
Clear sky, there's a chance of rain today, winds are light.
37°F / 3°C
5 mph / 8 km/h NE
90%
15 mi / 24 km
42%
0
Hourly Forecast
2 AM
42°
Clear sky
0% · 5 mph
3 AM
42°
Overcast
0% · 5 mph
4 AM
42°
Mainly clear
0% · 5 mph
5 AM
45°
Partly cloudy
0% · 5 mph
6 AM
42°
Partly cloudy
0% · 4 mph
7 AM
44°
Overcast
0% · 4 mph
8 AM
46°
Overcast
3% · 4 mph
9 AM
48°
Light drizzle
8% · 2 mph
10 AM
51°
Light drizzle
14% · 2 mph
11 AM
51°
Light drizzle
22% · 2 mph
12 PM
51°
Drizzle
30% · 3 mph
1 PM
51°
Light drizzle
37% · 3 mph
2 PM
51°
Overcast
40% · 5 mph
3 PM
50°
Light drizzle
42% · 4 mph
4 PM
51°
Overcast
41% · 2 mph
5 PM
50°
Overcast
39% · 2 mph
6 PM
49°
Overcast
34% · 2 mph
7 PM
49°
Overcast
29% · 1 mph
8 PM
48°
Overcast
22% · 2 mph
9 PM
48°
Overcast
13% · 2 mph
10 PM
48°
Overcast
6% · 2 mph
11 PM
44°
Clear sky
2% · 2 mph
All hours shown in local time for this location (Europe/London).
Tonight's Night Sky & Stargazing Clarity
Fair (Intermittent Cloud Cover or Glare)
57/100
- Cloud Cover
61% - Wind Shear
4 mph - Moon Glare
about 63% illuminated
Score from forecast cloud cover, wind and rain chance over the coming night hours, minus a small penalty for moonlight. Moon illumination is an estimate.
7-day Forecast
Warming trend through the week; rain is likely on most days; winds pick up on 1 day.
Today
Oct 20
Drizzle
High 52°Low 41°
42% precip
Wind 5 mph
Wed
Oct 21
Rain
High 50°Low 41°
90% precip
Wind 17 mph
Thu
Oct 22
Heavy drizzle
High 54°Low 43°
74% precip
Wind 12 mph
Fri
Oct 23
Light rain
High 50°Low 45°
88% precip
Wind 21 mph
Sat
Oct 24
Light rain
High 57°Low 46°
86% precip
Wind 22 mph
Sun
Oct 25
Drizzle
High 59°Low 50°
71% precip
Wind 20 mph
Mon
Oct 26
Rain showers
High 61°Low 50°
78% precip
Wind 25 mph
Weather Alerts
No authoritative alert provider covers this location yet. We never estimate or fill in alerts — check your national weather service directly before making safety decisions.
How Today's Weather Affects the Sky
A 42% chance of precipitation today means some cloud cover is possible tonight, but clear breaks are realistic too.
For moon phase, aurora conditions, and exact visibility at your location tonight, see Sky Tonight.
Sources: NOAA/National Weather Service (US alerts) and Open-Meteo (global weather). Each section labels its own source, last update and freshness state. Always follow official local guidance during severe weather.
Live Radar — Caernarfon, United Kingdom
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