🇬🇧 Weather in St Helens
Map Overlays:
Hourly Forecast for St Helens
02:00
14°
0%
03:00
14°
0%
04:00
13°
0%
05:00
13°
0%
06:00
13°
0%
07:00
14°
0%
08:00
16°
0%
09:00
18°
0%
10:00
19°
0%
11:00
21°
0%
12:00
22°
0%
13:00
23°
0%
14:00
24°
69%
15:00
23°
66%
16:00
22°
89%
17:00
21°
72%
18:00
21°
0%
19:00
21°
0%
20:00
19°
0%
21:00
17°
0%
22:00
16°
0%
23:00
15°
0%
00:00
14°
0%
01:00
14°
0%
14-Day Forecast for St Helens
2026-05-22
Partly Cloudy
24° /
13°
2026-05-23
Patchy rain nearby
25° /
13°
2026-05-24
Patchy rain nearby
29° /
15°
2026-05-25
Sunny
29° /
13°
2026-05-26
Patchy rain nearby
29° /
17°
2026-05-27
Patchy rain nearby
26° /
16°
2026-05-28
Patchy rain nearby
28° /
15°
Additional Forecasts for St Helens
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 139.8 μg/m³
O₃ (Ozone) 38.0 μg/m³
NO₂ (Nitrogen Dioxide) 15.8 μg/m³
SO₂ (Sulphur Dioxide) 2.0 μg/m³
PM2.5 (Fine particles) 7.7 μg/m³
PM10 (Coarse particles) 11.3 μg/m³