See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:02
Sunrise
19:15
Sunset
Moon
Waxing Crescent
13:02
Moonrise
21:18
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Grimes.
Resources
UV Index
Humidity
Weather in Grimes today, September 16, 2026
Cloud cover dominates in Grimes on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 03:00. Outdoor plans early on should not rely on bright skies.
Temperatures climb from an overnight low near 14°C toward a daytime high of about 23°C. The air stays humid, with relative humidity between 57% and 95% and the peak around 19:00. Expect gentle winds, highest near 22:00 at 4.3 km/h.
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 15.1 km, with poorer spells close to 12.3 km. Daylight runs from 07:02 to 19:15, lasting 12 hours 12 minutes of sunlight today.
In short, cloud leads the story in Grimes on September 16, 2026; expect limited sun and a peak around 23°C.
Frequently asked questions about weather in Grimes
How warm does it get in Grimes?
The warmest month in Grimes is July, with average high temperatures of 30°C. The average temperature during this period is around 24°C.
How cold does it get in Grimes?
The coldest month in Grimes is January, with average low temperatures of -9°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Grimes?
The wettest month in Grimes is May, with an average of 148mm of precipitation.
What is the driest time of year in Grimes?
The driest month in Grimes is February, with an average of 32mm of precipitation.
