Tomorrow's Weather Forecast - St Johns

Tomorrow's weather in St Johns. high 22°C (72°F), low 11°C (52°F). Drizzle.

Tomorrow’s Outlook

Tomorrow brings a similar temperature to today. Expect heavy rain in the morning and afternoon, with rain chances climbing as high as 83%. That risk lines up with humidity averaging 66% through the day the more moisture in the air, the more readily clouds build into showers. Humidity sits at a moderate 66%, so the air shouldn't feel unusually damp or dry. Winds will turn gusty at times, reaching up to 62 km/h. Sunrise is at 6:16 AM and sunset at 6:03 PM, for about 11h 47m of daylight.

Tomorrow
22°/ 11°
Today22° / 10°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon19°
Rain probability
63%
Wind speed
30 km/h
AfternoonNoon – 6 PM18°
Rain probability
83%
Wind speed
31 km/h
Evening6 PM – Midn12°
Rain probability
2%
Wind speed
19 km/h
NightMidn – 6 AM16°
Rain probability
0%
Wind speed
18 km/h

24-Hour Rain & Temperature Forecast

Tomorrow13 Sep
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Temperature · peaks at +22°C

Planning Advice for Tomorrow

Clothing
Waterproof jacket and umbrella strongly recommended.
Outdoor
Not ideal for outdoor plans or car washes — heavy rain expected.
Travel
Expect traffic slowdowns from wet roads. Allow extra time.

Sunrise & Sunset

Sunrise
Dawn 5:46 AM
Total Daylight
Full day forecastSolar noon 12:10 PM
Sunset
Dusk 6:33 PM
vs today+2 min daylight
Sunrise shift2 min earlier
Sunset shiftSame time

5-Day Weather Forecast

Full 15-Day Forecast
Today12 Sep
Overcast
22°/ 10°
16
Wind
Tomorrow13 Sep
Drizzle
22°/ 11°
83%
Rain
13–31
Wind
Mon14 Sep
Drizzle
15°/ 10°
22%
Rain
6–19
Wind
Tue15 Sep
Drizzle
14°/ 7°
20%
Rain
6–17
Wind
Wed16 Sep
Sunny
14°/ 5°
9–23
Wind

Weather Insight

St Johns is forecast to reach a high of 22°C tomorrow, with an overnight low around 11°C. That's 3° above the long-term average high of 19°C for this time of year. Expect a high chance of rain (83% probability) and moderate breezes averaging 31 km/h. Air quality is currently good (AQI 26), with no notable outdoor health concerns.

Today vs Normal

22°C+4° above normal

The long-term average high for today is 18°C.

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.