See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
21°
Overcast
Feels Like: 31°
Min: 19°
Max: 25°
The next few hours will be overcast, with today reaching 25°C and dropping to 17°C. The coming days will be mostly clear throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:39
Sunrise
18:51
Sunset
Moon
Waxing Crescent
11:14
Moonrise
20:45
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 Lake Forest.
UV Index
Humidity
Weather in Lake Forest today, September 15, 2026
Cloud cover dominates in Lake Forest 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 10:00. Outdoor plans early on should not rely on bright skies.
Expect highs of 25°C and cooler readings close to 19°C. Moisture in the air spans 58%-83%, with the highest values around 23:00. A lighter breeze peaks around 15:00 near 4.7 km/h.
Expect persistent cloud later on, with amounts around 100% by 19:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 16.0 km on average, though it can drop toward 15.1 km in thicker cloud or showers. Daylight runs from 06:39 to 18:51, lasting 12 hours 11 minutes of sunlight today.
In short, cloud leads the story in Lake Forest on September 15, 2026; expect limited sun and a peak around 25°C.
Frequently asked questions about weather in Lake Forest
How warm does it get in Lake Forest?
The warmest month in Lake Forest is August, with average high temperatures of 29°C. The average temperature during this period is around 23°C.
How cold does it get in Lake Forest?
The coldest month in Lake Forest is January, with average low temperatures of 9°C. The average temperature during this period is around 13°C.
What is the wettest time of year in Lake Forest?
The wettest month in Lake Forest is January, with an average of 81mm of precipitation.
What is the driest time of year in Lake Forest?
The driest month in Lake Forest is July, with an average of 1mm of precipitation.
Explore more weather forecasts
- Laguna Hills, California
- New York City, New York
- Laguna Woods, California
- Los Angeles, California
- Mission Viejo, California
- Brooklyn, New York
- Rancho Santa Margarita, California
- Chicago, Illinois
- Aliso Viejo, California
- Houston, Texas
- Ladera Ranch, California
- Queens, New York
- Coto De Caza, California
- Phoenix, Arizona
- Turtle Rock, California
- Philadelphia, Pennsylvania
