Illinois weather in June: Statewide normals and every place, NOAA 1991-2020
In June, Illinois's statewide normal high is 83°F and normal low 62°F; normal highs run from 76°F in Waukegan to 87°F in Belleville (NOAA 1991-2020 normals).
- Statewide normal high
- 83°FJune, 1991-2020
- Statewide normal low
- 62°FJune, 1991-2020
- Statewide normal precipitation
- 4.65 inJune
- Warmest place
- 87°Fnormal high, Belleville
- Coolest place
- 76°Fnormal high, Waukegan
Where is Illinois warmest and wettest in June?
Belleville has the warmest June afternoons (87°F) and Waukegan the coolest (76°F). Galena gets the most precipitation (6.02 in) and Alton the least (3.40 in).
Statewide, June averaged 74.1°F in 2021, 73.5°F in 2022, 71.5°F in 2023, 74.5°F in 2024, 74.2°F in 2025, 71.9°F in 2026, against a 1991-2020 normal of 72.2°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Chicago | 80°F | 61°F | 4.10 | 0.0 |
| Aurora | 81°F | 60°F | 4.50 | 0.0 |
| Joliet | 80°F | 60°F | 4.30 | 0.0 |
| Rockford | 81°F | 60°F | 5.23 | 0.0 |
| Elgin | 80°F | 58°F | 4.46 | 0.0 |
| Springfield | 84°F | 63°F | 4.61 | 0.0 |
| Peoria | 83°F | 62°F | 3.73 | 0.0 |
| Champaign | 84°F | 62°F | 4.35 | – |
| Waukegan | 76°F | 57°F | – | – |
| Bloomington | 81°F | 60°F | 4.58 | – |
| Decatur | 83°F | 62°F | 4.38 | – |
| Wheaton | 83°F | 59°F | 4.65 | 0.0 |
| Normal | 83°F | 60°F | 4.08 | 0.0 |
| Moline | 83°F | 61°F | 5.01 | 0.0 |
| Crystal Lake | 80°F | 58°F | 5.26 | 0.0 |
| Romeoville | 82°F | 60°F | 4.68 | 0.0 |
| Belleville | 87°F | 65°F | 4.62 | 0.0 |
| DeKalb | 80°F | 60°F | 4.57 | 0.0 |
| Quincy | 82°F | 63°F | 4.50 | – |
| Streamwood | 83°F | 57°F | 4.72 | 0.0 |
| Wheeling | 80°F | 60°F | 3.97 | – |
| Rock Island | 81°F | 61°F | 5.22 | – |
| Mundelein | 78°F | 58°F | 4.38 | 0.0 |
| Galesburg | 81°F | 62°F | 4.58 | 0.0 |
| Burbank | 81°F | 63°F | 4.53 | 0.0 |
| Danville | 83°F | 61°F | 5.18 | – |
| West Chicago | 81°F | 59°F | 3.65 | – |
| Alton | 84°F | 66°F | 3.40 | – |
| Lisle | 81°F | 58°F | 4.43 | – |
| Kankakee | 82°F | 61°F | 5.21 | 0.0 |
| Freeport | 79°F | 59°F | 5.26 | 0.0 |
| Carbondale | 86°F | 64°F | 4.11 | – |
| Park Forest | 80°F | 59°F | 4.91 | 0.0 |
| Ottawa | 80°F | 61°F | 4.40 | 0.0 |
| Jacksonville | 83°F | 62°F | 4.96 | – |
| Charleston | 86°F | 63°F | 4.84 | 0.0 |
| Cahokia Heights | 86°F | 65°F | 4.36 | – |
| Mattoon | 83°F | 63°F | 4.72 | – |
| Dixon | 80°F | 61°F | 5.59 | 0.0 |
| Antioch | 78°F | 59°F | – | – |
| Morris | 82°F | 61°F | 4.72 | 0.0 |
| Channahon | 81°F | 60°F | 4.50 | 0.0 |
| Mount Vernon | 82°F | 64°F | 4.84 | 0.0 |
| Lincoln | 83°F | 61°F | 4.16 | 0.0 |
| Effingham | 85°F | 63°F | 4.87 | 0.0 |
| Streator | 84°F | 62°F | 4.67 | 0.0 |
| Rantoul | 85°F | 62°F | 4.61 | – |
| Kewanee | 81°F | 60°F | 5.00 | 0.0 |
| Pontiac | 82°F | 62°F | 3.90 | 0.0 |
| Barrington | 78°F | 58°F | 4.60 | 0.0 |
| Peru | 81°F | 59°F | 4.62 | 0.0 |
| Rochelle | 79°F | 59°F | 4.92 | – |
| Lake Villa | 78°F | 58°F | 4.20 | 0.0 |
| Monmouth | 81°F | 60°F | 4.53 | 0.0 |
| Olney | 84°F | 62°F | 4.79 | 0.0 |
| Jerseyville | 83°F | 63°F | 4.12 | 0.0 |
| Paris | 82°F | 61°F | 5.02 | 0.0 |
| Harrisburg | 86°F | 65°F | 4.92 | – |
| Marengo | 80°F | 57°F | 4.62 | 0.0 |
| Princeton | 82°F | 60°F | 4.64 | 0.0 |
| Vandalia | 84°F | 63°F | 4.87 | – |
| Robinson | 85°F | 63°F | 4.57 | – |
| Salem | 85°F | 64°F | 5.08 | 0.0 |
| Mount Carmel | 85°F | 66°F | 4.70 | 0.0 |
| Benton | 85°F | 64°F | – | – |
| Geneseo | 83°F | 62°F | 4.42 | 0.0 |
| Hillsboro | 86°F | 63°F | 3.83 | – |
| Du Quoin | 84°F | 64°F | 4.79 | 0.0 |
| Carlinville | 83°F | 63°F | 4.64 | 0.0 |
| Pana | 84°F | 62°F | 5.07 | 0.0 |
| Fairfield | 87°F | 64°F | 4.70 | – |
| Marseilles | 81°F | 58°F | 4.92 | 0.0 |
| Hoopeston | 83°F | 62°F | 4.89 | 0.0 |
| Carmi | 85°F | 63°F | 4.31 | 0.0 |
| Tuscola | 82°F | 63°F | 4.84 | 0.0 |
| Flora | 86°F | 63°F | 5.86 | 0.0 |
| Shelbyville | 83°F | 63°F | 4.68 | – |
| Watseka | 82°F | 60°F | 5.02 | 0.0 |
| Paxton | 82°F | 60°F | 4.32 | 0.0 |
| Lawrenceville | 85°F | 64°F | 4.38 | – |
| Sullivan | 83°F | 63°F | 4.95 | 0.0 |
| Anna | 87°F | 65°F | 4.95 | 0.0 |
| Pittsfield | 84°F | 63°F | 5.01 | 0.0 |
| Sparta | 84°F | 62°F | 4.31 | 0.0 |
| Dwight | 81°F | 59°F | 4.60 | 0.0 |
| Morrison | 80°F | 59°F | 4.93 | 0.0 |
| Fulton | 81°F | 62°F | 4.52 | – |
| Aledo | 82°F | 60°F | 5.37 | 0.0 |
| Gibson City | 82°F | 61°F | 4.57 | 0.0 |
| Carlyle | 85°F | 65°F | 4.87 | – |
| Galena | 78°F | 58°F | 6.02 | 0.0 |
| Virden | 83°F | 65°F | 4.29 | 0.0 |
| Nashville | 84°F | 64°F | 4.68 | 0.0 |
| Rushville | 81°F | 62°F | 5.01 | – |
| Knoxville | 81°F | 61°F | 4.61 | 0.0 |
| Havana | 85°F | 62°F | 4.73 | 0.0 |
| Newton | 84°F | 64°F | 5.28 | 0.0 |
| McLeansboro | 85°F | 63°F | 5.05 | 0.0 |
| Galva | 82°F | 60°F | 5.17 | – |
| Casey | 84°F | 63°F | 5.16 | 0.0 |
| Polo | 82°F | 59°F | 5.07 | – |
| White Hall | 83°F | 62°F | 4.67 | 0.0 |
| Petersburg | 82°F | 62°F | 4.14 | 0.0 |
| Mason City | 82°F | 62°F | 4.20 | 0.0 |
| Athens | 81°F | 61°F | 4.20 | – |
| Minonk | 83°F | 61°F | 3.98 | 0.0 |
| Albion | 86°F | 66°F | – | – |
| Lacon | 84°F | 61°F | 4.29 | 0.0 |
| Princeville | 83°F | 61°F | 4.00 | 0.0 |
| Chenoa | 82°F | 60°F | 3.81 | 0.0 |
| Stockton | 79°F | 59°F | 5.72 | 0.0 |
| Cairo | 86°F | 66°F | 4.37 | – |
| Winchester | 84°F | 62°F | 4.99 | – |
| Grayville | 86°F | 65°F | 4.46 | 0.0 |
| Mount Carroll | 82°F | 57°F | 5.49 | 0.0 |
| Neoga | 84°F | 63°F | 4.75 | – |
| Walnut | 81°F | 60°F | 4.93 | 0.0 |
| Palestine | 84°F | 63°F | 4.88 | 0.0 |
| La Harpe | 81°F | 61°F | 4.94 | – |
| Windsor | 82°F | 62°F | 4.76 | 0.0 |
| Morrisonville | 83°F | 63°F | 3.92 | 0.0 |
| Rosiclare | 83°F | 62°F | 4.61 | 0.0 |
| Ramsey | 82°F | 62°F | 4.57 | 0.0 |
| Shabbona | 80°F | 58°F | 4.54 | – |
| Paw Paw | 80°F | 58°F | 4.62 | 0.0 |
| Hennepin | 82°F | 61°F | 4.55 | – |
| Piper City | 85°F | 60°F | 4.53 | 0.0 |
| Ogden | 82°F | 62°F | 4.96 | 0.0 |
| Brookport | 85°F | 65°F | 4.67 | 0.0 |
| Elizabeth | 80°F | 58°F | 5.82 | 0.0 |
| Brownstown | 84°F | 65°F | 4.13 | – |
| Avon | 81°F | 59°F | 4.38 | 0.0 |
| Golden | 83°F | 62°F | – | – |
| New Boston | 83°F | 62°F | 4.59 | – |
| Congerville | 83°F | 61°F | 4.05 | 0.0 |
| Sidell | 82°F | 62°F | 4.61 | 0.0 |
| Altona | 81°F | 59°F | 4.72 | – |
| Prairie City | 82°F | 62°F | 4.82 | 0.0 |
| Perry | 84°F | 62°F | 4.75 | 0.0 |
| Compton | 80°F | 58°F | – | – |
| Gladstone | 82°F | 63°F | 4.66 | 0.0 |
| Bentley | 83°F | 63°F | 4.85 | 0.0 |
| Kaskaskia | 86°F | 64°F | 4.14 | 0.0 |
| Illinois City | 81°F | 62°F | 5.00 | – |
| Cahokia | 85°F | 65°F | 4.30 | 0.0 |
| Chicago Aurora Municipal Airport | 81°F | 59°F | 3.98 | – |
| Chicago Botanic Garden | 78°F | 57°F | 4.31 | 0.0 |
| Chicago Midway Airport | 81°F | 62°F | 4.01 | – |
| Chicago Waukegan Regional Airport | 77°F | 56°F | 4.45 | – |
| Dixon Springs Agricultural Center | 85°F | 63°F | 4.08 | 0.0 |
| Grand Chain Dam 53 | 86°F | 65°F | 4.13 | 0.0 |
| Iuka (12 mi SW) | 84°F | 62°F | 4.08 | 0.0 |
| Little Red School House | 84°F | 60°F | 4.65 | – |
| McHenry W.G. Stratton Lock and Dam | 80°F | 57°F | 4.81 | 0.0 |
| Rend Lake Dam | 86°F | 65°F | 4.48 | – |
| Smithland Lock and Dam | 85°F | 65°F | 4.30 | 0.0 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.