McLean County climate

McLean County Weather in June

NOAA 1991-2020 normals for Garrison, 9 km from McLean County

Average highs run from 71°F on June 1 to 78°F on June 30, and lows from 49°F to 56°F. Normal precipitation for the month is 3.78 in over about 11 wet days.

June day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at McLean County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

June at a glance

Average high
75°F
Average low
53°F
Precipitation
3.78 in
Record high
102°FJun 4, 2021
Record low
32°FJun 3, 2022
Chance of a freeze
0%
Days of 90°F or more
0.9
Daylight
15 h 43 min to 15 h 56 min
Cloud cover
60%
Humidity
62%
Dew point
50°F
Wind
11.0 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jun 171°F49°F89°F 201738°F 201935%0%
Jun 271°F49°F89°F 201734°F 200936%0%
Jun 372°F50°F96°F 202132°F 202236%0%
Jun 472°F50°F102°F 202133°F 199836%0%
Jun 572°F50°F98°F 202134°F 200936%0%
Jun 672°F51°F91°F 202337°F 200936%0%
Jun 773°F51°F94°F 202339°F 199836%0%
Jun 873°F51°F90°F 202340°F 200736%0%
Jun 973°F52°F95°F 201739°F 200936%0%
Jun 1073°F52°F89°F 202138°F 200936%0%
Jun 1174°F52°F86°F 200040°F 200936%0%
Jun 1274°F52°F85°F 202241°F 200836%0%
Jun 1374°F53°F85°F 202345°F 202636%0%
Jun 1474°F53°F87°F 202140°F 202636%0%
Jun 1574°F53°F92°F 202145°F 200836%0%
Jun 1675°F53°F90°F 201638°F 200836%0%
Jun 1775°F54°F86°F 202139°F 200036%0%
Jun 1875°F54°F98°F 202234°F 200436%0%
Jun 1975°F54°F96°F 202238°F 200436%0%
Jun 2076°F54°F84°F 202337°F 202636%0%
Jun 2176°F55°F84°F 201643°F 200135%0%
Jun 2276°F55°F88°F 200542°F 200435%0%
Jun 2376°F55°F95°F 202142°F 200435%0%
Jun 2477°F55°F90°F 201633°F 200435%0%
Jun 2577°F55°F88°F 199835°F 200435%0%
Jun 2677°F56°F88°F 201238°F 201735%0%
Jun 2777°F56°F95°F 202042°F 199934%0%
Jun 2878°F56°F92°F 202041°F 200734%0%
Jun 2978°F56°F99°F 200248°F 201234%0%
Jun 3078°F56°F91°F 202143°F 202434%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at McLean County, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

June 1
sunrise 5:52 AM, sunset 9:35 PM
June 30
sunrise 5:51 AM, sunset 9:47 PM

Every day of June: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00323376 (Garrison), public domain. Records: NOAA GHCN-Daily, station USW00094041, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.