When to go · St. Elmo, Illinois
St. Elmo, Illinois, month by month
The best months for St. Elmo, Illinois: May, Jun, Jul, Aug, Sep, Oct. Months to avoid: Jan, Feb, Mar, Nov, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Nov–Mar (cold, limited services).4 °C (39 °F) / -7 °C (19 °F), 8 rain days39 °F (4 °C) / 19 °F (-7 °C), 8 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Nov–Mar (cold, limited services).6 °C (43 °F) / -5 °C (23 °F), 8 rain days43 °F (6 °C) / 23 °F (-5 °C), 8 rain daysCrowds: Low · 1 festival or holiday
- MarchAvoidListed as a month to avoid: Nov–Mar (cold, limited services).12 °C (54 °F) / 0 °C (32 °F), 10 rain days54 °F (12 °C) / 32 °F (0 °C), 10 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.18 °C (64 °F) / 6 °C (43 °F), 11 rain days64 °F (18 °C) / 43 °F (6 °C), 11 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside St. Elmo, Illinois's best window: May–Oct.24 °C (75 °F) / 12 °C (54 °F), 11 rain days75 °F (24 °C) / 54 °F (12 °C), 11 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside St. Elmo, Illinois's best window: May–Oct.29 °C (84 °F) / 17 °C (63 °F), 10 rain days84 °F (29 °C) / 63 °F (17 °C), 10 rain daysCrowds: High
- JulyGreatInside St. Elmo, Illinois's best window: May–Oct.31 °C (88 °F) / 19 °C (66 °F), 9 rain days88 °F (31 °C) / 66 °F (19 °C), 9 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside St. Elmo, Illinois's best window: May–Oct.30 °C (86 °F) / 18 °C (64 °F), 8 rain days86 °F (30 °C) / 64 °F (18 °C), 8 rain daysCrowds: High
- SeptemberGreatInside St. Elmo, Illinois's best window: May–Oct.27 °C (81 °F) / 14 °C (57 °F), 8 rain days81 °F (27 °C) / 57 °F (14 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside St. Elmo, Illinois's best window: May–Oct.20 °C (68 °F) / 7 °C (45 °F), 8 rain days68 °F (20 °C) / 45 °F (7 °C), 8 rain daysCrowds: Medium
- NovemberAvoidListed as a month to avoid: Nov–Mar (cold, limited services).12 °C (54 °F) / 1 °C (34 °F), 9 rain days54 °F (12 °C) / 34 °F (1 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Nov–Mar (cold, limited services).5 °C (41 °F) / -5 °C (23 °F), 9 rain days41 °F (5 °C) / 23 °F (-5 °C), 9 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in St. Elmo, Illinois, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 24 °C (75 °F)75 °F (24 °C)
Jun: 29 °C (84 °F)84 °F (29 °C)
Night low
May: 12 °C (54 °F)54 °F (12 °C)
Jun: 17 °C (63 °F)63 °F (17 °C)
Rain days
May: 11
Jun: 10 (better)
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside St. Elmo, Illinois's best window: May–Oct.
June: Inside St. Elmo, Illinois's best window: May–Oct.
St. Elmo, Illinois: figures are long-term averages from this guide, not a forecast.