See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
15°
Drizzle
Feels Like: 14°
Min: 11°
Max: 15°
The next few hours will be overcast, with today reaching 15°C and dropping to 11°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
07:33
Sunrise
19:13
Sunset
Moon
Waxing Gibbous
18:48
Moonrise
05:44
Moonset
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View stargazing scoreWeather in Roscommon today, September 25, 2026
Expect unsettled, showery conditions in Roscommon on September 25, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans.
Temperatures climb from an overnight low near 11°C toward a daytime high of about 15°C. Moisture in the air spans 65%-85%, with the highest values around 23:00. Airflow remains manageable, reaching about 7.2 km/h around 16:00.
The second half of the day still looks unsettled, with rain probability around 58% by 23:00. Dense cloud near 92% at 12:00 keeps the feel grey. Visibility stays near 16.1 km. Sunrise is at 07:33 and sunset at 19:13, giving 11 hours 40 minutes of sunlight today.
Taken together, Roscommon looks wet enough on September 25, 2026 that flexible outdoor plans work best, with temperatures peaking near 15°C.
Frequently asked questions about weather in Roscommon
How warm does it get in Roscommon?
The warmest month in Roscommon 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 Roscommon?
The coldest month in Roscommon is January, with average low temperatures of 3°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Roscommon?
The wettest month in Roscommon is October, with an average of 113mm of precipitation.
What is the driest time of year in Roscommon?
The driest month in Roscommon is May, with an average of 71mm of precipitation.
