Lake Forest Weather in January
Average highs run from 76°F on January 1 to 76°F on January 31, and lows from 60°F to 59°F. Normal precipitation for the month is 2.30 in over about 7 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 75°F
- Average low
- 59°F
- Precipitation
- 2.30 in
- Record high
- 89°FJan 4, 2020
- Record low
- 34°FJan 10, 2010
- Chance of a freeze
- 0%
- Daylight
- 10 h 33 min to 10 h 59 min
- Cloud cover
- 58%
- Humidity
- 76%
- Dew point
- 62°F
- Wind
- 12.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jan 1 | 76°F | 60°F | 86°F 2023 | 39°F 2001 | 24% |
| Jan 2 | 76°F | 60°F | 85°F 2014 | 42°F 2008 | 24% |
| Jan 3 | 76°F | 60°F | 85°F 2020 | 37°F 2008 | 24% |
| Jan 4 | 75°F | 60°F | 89°F 2020 | 39°F 2010 | 24% |
| Jan 5 | 75°F | 60°F | 86°F 2015 | 36°F 2001 | 24% |
| Jan 6 | 75°F | 59°F | 85°F 2014 | 37°F 2010 | 24% |
| Jan 7 | 75°F | 59°F | 87°F 2017 | 41°F 2010 | 23% |
| Jan 8 | 75°F | 59°F | 85°F 2007 | 40°F 2006 | 23% |
| Jan 9 | 75°F | 59°F | 85°F 2016 | 38°F 2010 | 23% |
| Jan 10 | 75°F | 59°F | 84°F 2016 | 34°F 2010 | 23% |
| Jan 11 | 75°F | 59°F | 85°F 2026 | 34°F 2010 | 23% |
| Jan 12 | 75°F | 59°F | 88°F 2024 | 38°F 2010 | 23% |
| Jan 13 | 75°F | 59°F | 85°F 2024 | 41°F 2010 | 23% |
| Jan 14 | 75°F | 59°F | 83°F 2014 | 46°F 2023 | 23% |
| Jan 15 | 75°F | 59°F | 83°F 2020 | 40°F 2023 | 23% |
| Jan 16 | 75°F | 59°F | 86°F 2024 | 43°F 2023 | 23% |
| Jan 17 | 75°F | 59°F | 82°F 2002 | 40°F 2014 | 23% |
| Jan 18 | 75°F | 59°F | 86°F 2026 | 43°F 2003 | 23% |
| Jan 19 | 75°F | 59°F | 87°F 2025 | 38°F 2014 | 23% |
| Jan 20 | 75°F | 59°F | 84°F 2011 | 40°F 2003 | 23% |
| Jan 21 | 75°F | 59°F | 84°F 2002 | 40°F 2009 | 22% |
| Jan 22 | 75°F | 59°F | 86°F 2010 | 38°F 2020 | 22% |
| Jan 23 | 75°F | 59°F | 88°F 2023 | 41°F 2001 | 22% |
| Jan 24 | 75°F | 59°F | 85°F 2026 | 34°F 2003 | 22% |
| Jan 25 | 75°F | 59°F | 86°F 2002 | 42°F 2003 | 22% |
| Jan 26 | 75°F | 59°F | 87°F 2026 | 45°F 2000 | 22% |
| Jan 27 | 75°F | 59°F | 87°F 2012 | 39°F 2000 | 22% |
| Jan 28 | 75°F | 59°F | 84°F 2024 | 48°F 2003 | 22% |
| Jan 29 | 76°F | 59°F | 85°F 2009 | 44°F 2022 | 22% |
| Jan 30 | 76°F | 59°F | 84°F 2023 | 39°F 2022 | 22% |
| Jan 31 | 76°F | 59°F | 84°F 2001 | 43°F 2026 | 22% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:08 AM, sunset 5:41 PM
- January 31
- sunrise 7:05 AM, sunset 6:04 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00086315 (N Miami Beach #2), public domain. Records: NOAA GHCN-Daily, station USW00092809, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.