See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
16°
Overcast
Feels Like: 20°
Min: 13°
Max: 17°
The next few hours will be overcast, with today reaching 17°C and dropping to 15°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:59
Sunrise
19:20
Sunset
Moon
Waxing Crescent
09:42
Moonrise
19:59
Moonset
Daily Forecast
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Monday
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Weather in Johnston today, September 13, 2026
Johnston looks cloudy on September 13, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward.
The day peaks near 17°C and cools toward 13°C. Relative humidity sits between 82% and 91%, reaching its peak around 21:00. Airflow remains manageable, reaching about 2.4 km/h around 14:00.
Through the afternoon cloud remains the main feature, with cover near 100% around 15:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.5 km, briefly nearer 14.7 km. Daylight runs from 06:59 to 19:20, lasting 12 hours 21 minutes of sunlight today.
The practical takeaway for Johnston on September 13, 2026 is a cloudy day that stays usable, just not particularly bright, around 17°C.
Frequently asked questions about weather in Johnston
How warm does it get in Johnston?
The warmest month in Johnston is July, with average high temperatures of 30°C. The average temperature during this period is around 24°C.
How cold does it get in Johnston?
The coldest month in Johnston is January, with average low temperatures of -9°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Johnston?
The wettest month in Johnston is May, with an average of 148mm of precipitation.
What is the driest time of year in Johnston?
The driest month in Johnston is February, with an average of 32mm of precipitation.
