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
06:53
Sunrise
19:12
Sunset
Moon
Waxing Crescent
12:17
Moonrise
20:26
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Maple Valley.
UV Index
Humidity
Weather in Maple Valley today, September 15, 2026
Cloud cover dominates in Maple Valley on September 15, 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.
The day peaks near 19°C and cools toward 11°C. Relative humidity sits between 52% and 90%, reaching its peak around 05:00. Winds stay light, near 5.0 km/h by 20:00, so the day feels still more than breezy.
Expect persistent cloud later on, with amounts around 96% by 22:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 14.6 km on average, though it can drop toward 8.0 km in thicker cloud or showers. Expect sunrise at 06:53, sunset at 19:12, and 12 hours 19 minutes of sunlight today overall.
The practical takeaway for Maple Valley on September 15, 2026 is a cloudy day that stays usable, just not particularly bright, around 19°C.
Frequently asked questions about weather in Maple Valley
How warm does it get in Maple Valley?
The warmest month in Maple Valley is August, with average high temperatures of 25°C. The average temperature during this period is around 18°C.
How cold does it get in Maple Valley?
The coldest month in Maple Valley is February, with average low temperatures of 2°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Maple Valley?
The wettest month in Maple Valley is December, with an average of 246mm of precipitation.
What is the driest time of year in Maple Valley?
The driest month in Maple Valley is July, with an average of 25mm of precipitation.
Explore more weather forecasts
- Covington, Washington
- New York City, New York
- Lake Morton-Berrydale, Washington
- Los Angeles, California
- East Hill-Meridian, Washington
- Brooklyn, New York
- Fairwood, Washington
- Chicago, Illinois
- East Renton Highlands, Washington
- Houston, Texas
- Lea Hill, Washington
- Queens, New York
- Kent, Washington
- Phoenix, Arizona
- Issaquah, Washington
- Philadelphia, Pennsylvania