When to go · Lake Forest
Lake Forest, month by month
The best months for Lake Forest: May, Jun, Jul, Aug, Sep, Oct. Months to avoid: Jan, Feb, Mar.
Month by month
- JanuaryAvoidListed as a month to avoid: Jan–Mar (cold, lake may be icy).2 °C (36 °F) / -9 °C (16 °F), 8 rain days36 °F (2 °C) / 16 °F (-9 °C), 8 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Jan–Mar (cold, lake may be icy).4 °C (39 °F) / -8 °C (18 °F), 7 rain days39 °F (4 °C) / 18 °F (-8 °C), 7 rain daysCrowds: Low · 1 festival or holiday
- MarchAvoidListed as a month to avoid: Jan–Mar (cold, lake may be icy).10 °C (50 °F) / -2 °C (28 °F), 9 rain days50 °F (10 °C) / 28 °F (-2 °C), 9 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (May–Oct). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.16 °C (61 °F) / 4 °C (39 °F), 9 rain days61 °F (16 °C) / 39 °F (4 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Lake Forest's best window: May–Oct.22 °C (72 °F) / 10 °C (50 °F), 9 rain days72 °F (22 °C) / 50 °F (10 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Lake Forest's best window: May–Oct.27 °C (81 °F) / 15 °C (59 °F), 10 rain days81 °F (27 °C) / 59 °F (15 °C), 10 rain daysCrowds: High
- JulyGreatInside Lake Forest's best window: May–Oct.30 °C (86 °F) / 19 °C (66 °F), 11 rain days86 °F (30 °C) / 66 °F (19 °C), 11 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside Lake Forest's best window: May–Oct.29 °C (84 °F) / 18 °C (64 °F), 10 rain days84 °F (29 °C) / 64 °F (18 °C), 10 rain daysCrowds: High
- SeptemberGreatInside Lake Forest's best window: May–Oct.25 °C (77 °F) / 14 °C (57 °F), 9 rain days77 °F (25 °C) / 57 °F (14 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Lake Forest's best window: May–Oct.18 °C (64 °F) / 8 °C (46 °F), 8 rain days64 °F (18 °C) / 46 °F (8 °C), 8 rain daysCrowds: Medium
- NovemberMixedOutside the best window (May–Oct). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.10 °C (50 °F) / 2 °C (36 °F), 7 rain days50 °F (10 °C) / 36 °F (2 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
- DecemberMixedOutside the best window (May–Oct). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.4 °C (39 °F) / -6 °C (21 °F), 8 rain days39 °F (4 °C) / 21 °F (-6 °C), 8 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Lake Forest, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 22 °C (72 °F)72 °F (22 °C)
Jun: 27 °C (81 °F)81 °F (27 °C)
Night low
May: 10 °C (50 °F)50 °F (10 °C)
Jun: 15 °C (59 °F)59 °F (15 °C)
Rain days
May: 9 (better)
Jun: 10
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside Lake Forest's best window: May–Oct.
June: Inside Lake Forest's best window: May–Oct.
Lake Forest: figures are long-term averages from this guide, not a forecast.