Is this weather normal in Adams County?

Illinois · county records since 1895, through September 2026.

Weather › Illinois › Adams County

Adams County just had its warmest September ever recorded, +7° against the usual. Adams County has warmed about 0.4° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 59°, lows near 39°

That is the 1991 to 2020 average for these dates in Adams County. The Weather Service forecast fills in below.

Loading the forecast...

usual high for the datewarmercooler

The last 12 months

Oct: +5.9°OctNov: +1.6°NovDec: -1.2°DecJan 2026: -2.1°JanFeb: +5.8°FebMar: +7.1°MarApr: +6.0°AprMay: -0.5°MayJun: -0.4°JunJul: +1.7°JulAug: +0.5°AugSep: +6.9°Sepwarmercooler

Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1895.

Every year since 1895

18952025

Rain and drought

Oct: -1.6 inOctNov: -0.8 inNovDec: -0.7 inDecJan 2026: -1.0 inJanFeb: -1.6 inFebMar: +1.6 inMarApr: +3.4 inAprMay: -2.3 inMayJun: +5.2 inJunJul: -1.6 inJulAug: +0.1 inAugSep: -0.7 inSepwetterdrier

Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.

Month by month in Adams County

MonthUsual high / lowUsual rainWarmestColdest
January35° / 18°1.8 in38.4° 200610.4° 1977
February40° / 23°1.9 in42.4° 201716.1° 1936
March52° / 32°2.5 in55.5° 201225.4° 1960
April64° / 42°4.1 in60.2° 189645.3° 1907
May74° / 53°5.0 in72.6° 201857.2° 1924
June83° / 63°4.8 in80.6° 193467.0° 1903
July86° / 66°3.9 in86.0° 193671.1° 2009
August85° / 64°3.9 in83.5° 193668.6° 1992
September78° / 56°3.5 in74.0° 193160.6° 1974
October66° / 44°3.2 in66.0° 196344.8° 1925
November52° / 33°2.6 in51.0° 200133.8° 1976
December40° / 24°2.0 in40.6° 201516.0° 1983

Warmest and coldest are the month's whole-month average temperature, with the year it happened.

Towns in Adams County

Nearby counties