Ten-day forecast for St Helens: +11° to +29°, with rain expected on 1 day. The table below breaks each day down by time of day — morning, afternoon, evening and night.
+29°
Best day: 9 August, Sunday
+23° · 1.2 mm
Worst day: 17 August, Monday
Tap any day below to see the weather morning, afternoon, evening and night.
Sun, 09+13 ° /29 °0
Morning+21°feels +20°
Afternoon+29°feels +30°
Evening+24°feels +24°
Night+16°feels +15°
+29 °
St Helens, Sunday, 9 August
Clear sky. High 29°C, low 13°C.
Pressure1014 mb
Wind6 mph SW
Humidity41%
Visibility6.2 mi
Dew point11°C
Mon, 10+12 ° /24 °0
Morning+19°feels +18°
Afternoon+24°feels +23°
Evening+21°feels +21°
Night+15°feels +14°
+24 °
St Helens, Monday, 10 August
Overcast. High 24°C, low 12°C.
Pressure1020 mb
Wind5 mph W
Humidity57%
Visibility6.2 mi
Dew point14°C
Tue, 11+18 ° /21 °0
Morning+19°feels +19°
Afternoon+19°feels +19°
Evening+21°feels +21°
Night+19°feels +18°
+21 °
St Helens, Tuesday, 11 August
Clear sky. High 21°C, low 18°C.
Pressure1025 mb
Wind19 mph E
Humidity64%
Visibility6.2 mi
Dew point13°C
Wed, 12+18 ° /23 °0
Morning+19°feels +19°
Afternoon+21°feels +20°
Evening+22°feels +22°
Night+18°feels +18°
+23 °
St Helens, Wednesday, 12 August
Clear sky. High 23°C, low 18°C.
Pressure1023 mb
Wind16 mph E
Humidity60%
Visibility6.2 mi
Dew point13°C
Thu, 13+20 ° /24 °0
Morning+21°feels +21°
Afternoon+23°feels +22°
Evening+24°feels +23°
Night+21°feels +21°
+24 °
St Helens, Thursday, 13 August
Clear sky. High 24°C, low 20°C.
Pressure1018 mb
Wind14 mph E
Humidity57%
Visibility—
Dew point13°C
Fri, 14+20 ° /25 °0
Morning+21°feels +21°
Afternoon+25°feels +25°
Evening+23°feels +23°
Night+22°feels +22°
+25 °
St Helens, Friday, 14 August
Overcast. High 25°C, low 20°C.
Pressure1016 mb
Wind19 mph SW
Humidity56%
Visibility—
Dew point15°C
Sat, 15+19 ° /22 °0
Morning+20°feels +20°
Afternoon+22°feels +22°
Evening+21°feels +21°
Night+20°feels +20°
+22 °
St Helens, Saturday, 15 August
Overcast. High 22°C, low 19°C.
Pressure1016 mb
Wind12 mph SW
Humidity69%
Visibility—
Dew point16°C
Sun, 16+19 ° /22 °0
Morning+20°feels +20°
Afternoon+22°feels +21°
Evening+19°feels +19°
Night+19°feels +19°
+22 °
St Helens, Sunday, 16 August
Overcast. High 22°C, low 19°C.
Pressure1014 mb
Wind24 mph SW
Humidity61%
Visibility—
Dew point14°C
Mon, 17+17 ° /23 °1.2
Morning+19°feels +19°
Afternoon+22°feels +22°
Evening+22°feels +22°
Night+20°feels +19°
+23 °
St Helens, Monday, 17 August
Light rain. High 23°C, low 17°C.
Pressure1011 mb
Wind15 mph NW
Humidity63%
Visibility—
Dew point14°C
Forecast questions
How accurate is a 10-day forecast?
The first 3–5 days are the most dependable — usually within 1–2 degrees. From day 6 to 10 the models show the trend: the direction of change is right more often than the exact figures.
What does the time-of-day table show?
Temperature in St Helens at around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime temperature against expected rainfall: a warm, dry day scores highest.