See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
20°
Clear
Feels Like: 20°
Min: 18°
Max: 29°
The next few hours will be overcast, with tomorrow reaching 30°C and dropping to 17°C. The coming days will be mostly clear until afternoon, returning in the evening.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:37
Sunrise
18:49
Sunset
Moon
Waxing Crescent
11:13
Moonrise
20:43
Moonset
Daily Forecast
Tuesday
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
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UV Index
Humidity
Weather in Grand Terrace tomorrow, September 16, 2026
Expect a mostly clear day in Grand Terrace on September 16, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. The first half of the day looks overcast, as cloud amounts reach about 100% around 07:00. Brighter weather, if it comes, waits until later.
The day peaks near 30°C and cools toward 16°C. The air stays humid, with relative humidity between 36% and 89% and the peak around 05:00. Winds stay light, near 3.0 km/h by 14:00, so the day feels still more than breezy.
Later hours favour clearer intervals, as cloud stays near 7% around 14:00. The afternoon is the better half for outdoor time. Expect visibility near 16.0 km, with poorer spells close to 15.3 km. Daylight runs from 06:38 to 18:48, lasting 12 hours 9 minutes of sunlight today.
Taken together, settled sunshine in Grand Terrace on September 16, 2026 makes outdoor timing easier, with highs near 30°C.
Frequently asked questions about weather in Grand Terrace
How warm does it get in Grand Terrace?
The warmest month in Grand Terrace is August, with average high temperatures of 33°C. The average temperature during this period is around 26°C.
How cold does it get in Grand Terrace?
The coldest month in Grand Terrace is January, with average low temperatures of 5°C. The average temperature during this period is around 10°C.
What is the wettest time of year in Grand Terrace?
The wettest month in Grand Terrace is January, with an average of 82mm of precipitation.
What is the driest time of year in Grand Terrace?
The driest month in Grand Terrace is June, with an average of 3mm of precipitation.
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