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Hourly Forecast
Daylight Hours
07:15
Sunrise
19:27
Sunset
Moon
Waxing Crescent
11:44
Moonrise
21:21
Moonset
Daily Forecast
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Humidity
Weather in Richardson today, September 15, 2026
Expect a mostly clear day in Richardson on September 15, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled.
The day peaks near 37°C and cools toward 27°C. The air stays humid, with relative humidity between 32% and 51% and the peak around 23:00. Expect gentle winds, highest near 17:00 at 4.7 km/h.
Afternoon skies stay clogged, peaking close to 73% near 19:00. The grey theme continues rather than clearing out. Views remain open at about 16.1 km. The sun rises at 07:15 and sets at 19:27, for a total of 12 hours 11 minutes of sunlight today.
In short, September 15, 2026 looks like a fine day in Richardson for being outside, peaking around 37°C.
Frequently asked questions about weather in Richardson
How warm does it get in Richardson?
The warmest month in Richardson is July, with average high temperatures of 35°C. The average temperature during this period is around 30°C.
How cold does it get in Richardson?
The coldest month in Richardson is January, with average low temperatures of 3°C. The average temperature during this period is around 8°C.
What is the wettest time of year in Richardson?
The wettest month in Richardson is May, with an average of 150mm of precipitation.
What is the driest time of year in Richardson?
The driest month in Richardson is July, with an average of 41mm of precipitation.
