River Forest, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 30° -27° (1985) 67° (1950) 1.75" 11.3"
February 19° 35° -21° (1899) 75° (1976) 1.63" 8.3"
March 29° 46° -12° (1873) 88° (1986) 2.65" 6"
April 38° 58° 7° (1982) 91° (1980) 3.68" 1.6"
May 47° 70° 27° (1983) 98° (1934) 3.38" 0"
June 57° 79° 35° (1945) 104° (1988) 3.63" 0"
July 63° 84° 45° (1983) 105° (1934) 3.51" 0"
August 62° 81° 42° (1986) 102° (1918) 4.62" 0"
September 54° 74° 29° (1995) 101° (1953) 3.27" 0"
October 42° 62° 14° (1887) 94° (1963) 2.71" 0.3"
November 32° 47° -2° (1950) 81° (1950) 3.01" 1.8"
December 20° 34° -25° (1983) 71° (1982) 2.43" 8.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 53° 75° 37° (1993) 102° (1934) 0.12" NA
Jun 2 53° 76° 38° (2003) 92° (1944) 0.12" NA
Jun 3 54° 76° 37° (1945) 95° (1895) 0.12" NA
Jun 4 54° 76° 35° (1945) 97° (1977) 0.12" NA
Jun 5 54° 77° 37° (1945) 97° (1971) 0.12" NA
Jun 6 55° 77° 39° (1985) 97° (1971) 0.12" NA
Jun 7 55° 77° 44° (1913) 100° (1933) 0.12" NA
Jun 8 55° 77° 42° (1885) 97° (1933) 0.12" NA
Jun 9 55° 78° 40° (1994) 98° (1911) 0.12" NA
Jun 10 56° 78° 42° (1980) 98° (1911) 0.12" NA
Jun 11 56° 78° 41° (1980) 97° (1954) 0.12" NA
Jun 12 56° 79° 40° (1985) 97° (1956) 0.12" NA
Jun 13 57° 79° 40° (1985) 95° (1956) 0.12" NA
Jun 14 57° 79° 45° (1997) 99° (1987) 0.13" NA
Jun 15 57° 79° 43° (1997) 95° (1994) 0.13" NA
Jun 16 57° 80° 44° (1980) 98° (1913) 0.13" NA
Jun 17 58° 80° 42° (1980) 96° (1957) 0.12" NA
Jun 18 58° 80° 45° (1999) 98° (1954) 0.12" NA
Jun 19 58° 80° 43° (1980) 102° (1953) 0.12" NA
Jun 20 59° 80° 43° (1992) 104° (1988) 0.12" NA
Jun 21 59° 81° 38° (1992) 101° (1988) 0.12" NA
Jun 22 59° 81° 40° (1875) 97° (1988) 0.12" NA
Jun 23 59° 81° 44° (1982) 97° (1930) 0.12" NA
Jun 24 60° 81° 46° (1986) 97° (1953) 0.12" NA
Jun 25 60° 81° 41° (1986) 103° (1988) 0.12" NA
Jun 26 60° 82° 50° (1992) 99° (1983) 0.12" NA
Jun 27 60° 82° 47° (1992) 101° (1971) 0.12" NA
Jun 28 60° 82° 44° (1992) 101° (1971) 0.12" NA
Jun 29 61° 82° 48° (1989) 97° (1954) 0.12" NA
Jun 30 61° 82° 45° (1943) 99° (1953) 0.12" NA
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