See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
12°
Overcast
Feels Like: 11°
Min: 12°
Max: 16°
The next few hours will be overcast, with today reaching 16°C and dropping to 12°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
07:38
Sunrise
19:19
Sunset
Moon
Waxing Gibbous
18:53
Moonrise
05:51
Moonset
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View stargazing scoreWeather in Castleisland today, September 25, 2026
Cloud cover dominates in Castleisland on September 25, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The morning sky stays heavily clouded, with cover near 100% around 08:00. Grey conditions set the early tone before any later change.
Expect highs of 16°C and cooler readings close to 12°C. The air stays humid, with relative humidity between 70% and 87% and the peak around 08:00. Expect gentle winds, highest near 16:00 at 6.8 km/h.
Through the afternoon cloud remains the main feature, with cover near 100% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 33.4 km, briefly nearer 28.1 km. The sun rises at 07:38 and sets at 19:19, for a total of 11 hours 41 minutes of sunlight today.
Taken together, overcast skies in Castleisland on September 25, 2026 favour indoor or covered options, with temperatures near 16°C.
Frequently asked questions about weather in Castleisland
How warm does it get in Castleisland?
The warmest month in Castleisland is July, with average high temperatures of 18°C. The average temperature during this period is around 15°C.
How cold does it get in Castleisland?
The coldest month in Castleisland is January, with average low temperatures of 4°C. The average temperature during this period is around 6°C.
What is the wettest time of year in Castleisland?
The wettest month in Castleisland is October, with an average of 111mm of precipitation.
What is the driest time of year in Castleisland?
The driest month in Castleisland is May, with an average of 63mm of precipitation.
