See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
24°
Overcast
Feels Like: 20°
Min: 15°
Max: 25°
The next few hours will be overcast, with today reaching 20°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
07:20
Sunrise
19:35
Sunset
Moon
Waxing Crescent
12:14
Moonrise
21:09
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
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UV Index
Humidity
Weather in Grand Island today, September 15, 2026
Cloud cover dominates in Grand Island on September 15, 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 01:00. Grey conditions set the early tone before any later change.
Expect highs of 25°C and cooler readings close to 15°C. The air stays humid, with relative humidity between 40% and 100% and the peak around 23:00. Winds stay light, near 7.6 km/h by 06:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 16.0 km, with poorer spells close to 13.5 km. Sunrise is at 07:20 and sunset at 19:35, giving 12 hours 15 minutes of sunlight today.
The practical takeaway for Grand Island on September 15, 2026 is a cloudy day that stays usable, just not particularly bright, around 25°C.
Frequently asked questions about weather in Grand Island
How warm does it get in Grand Island?
The warmest month in Grand Island is July, with average high temperatures of 31°C. The average temperature during this period is around 25°C.
How cold does it get in Grand Island?
The coldest month in Grand Island is January, with average low temperatures of -8°C. The average temperature during this period is around -4°C.
What is the wettest time of year in Grand Island?
The wettest month in Grand Island is May, with an average of 128mm of precipitation.
What is the driest time of year in Grand Island?
The driest month in Grand Island is February, with an average of 19mm of precipitation.
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