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Fulton County, IL

: September 2026 so far averaged 72.5°F in Fulton County, IL, the warmest 1 to 29 September in the county average since the data begin in 1951 (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
77.9°F
Warmest since 2025
24th warmest of 76
Low
47.8°F
Coldest since 2022
37th coldest of 76

No measurable precipitation in the county average of Fulton County, IL for 3 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September low of the county average in Fulton County, IL since 1951: 47.8°F in 2026; the lowest is 33.4°F, in 1984.
2022: 38°F1984: 33.4°F2026: 47.8°F 2026 47.8°F 1984 33.4°F since 2022 1951 2026
  • Normal range, 40.6 to 55.7°F
Every year as a table

Every 29 September high of the county average in Fulton County, IL since 1951: 77.9°F in 2026; the highest is 97.3°F, in 1953.

YearHigh, °FLow, °F
202677.947.8
202590.355.2
202478.361.2
202375.156.6
202264.638
202187.457.8
202065.444.8
201976.962.1
20186644.3
201774.946.8
201662.750.3
201581.160.5
201484.655.2
201380.849.1
201270.341.9
201170.148.3
201075.247
200963.848.6
200877.754.7
200781.549.6
200662.540.9
20057143.2
200471.241.2
200359.236.1
200281.754.8
200163.742.2
200073.445.9
199959.747
199882.359.9
199775.152
199668.544.2
19958051.7
19947244.3
199364.138.2
199261.537.3
199172.946.4
199074.853.8
198974.440.2
19888258.2
198781.856.3
198687.569
198575.448.6
198455.433.4
198384.754.7
198279.555.6
198169.144.5
198077.645
197985.854.7
197869.542.5
197772.846.6
197664.748.5
19757046.8
197469.245.7
197379.364.7
197276.746.5
197187.865.5
197072.743
196977.248.7
196872.848.1
196756.134.7
19666950.9
196577.651.4
196467.937.7
196377.345.5
196270.236.2
196166.438.6
196072.248.3
195970.350.1
195870.541.1
195770.636.3
195683.153.9
195579.156.7
195482.463.5
195397.362.8
195287.455.1
195161.134.9

The month

August 2026 averaged 74.2°F in Fulton County, IL, the warmest August in the county average since 2021, tied 47th warmest of 132 (with 1956 and 1954) (county average from NOAA's monthly county data, 1895 to 2026).

The month in words
  • Tuesday 29 September 2026: a high of 77.9°F averaged over Fulton County, IL, the warmest 29 September in the county average since 2025, 24th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 47.8°F averaged over Fulton County, IL, the coldest 29 September night in the county average since 2022, 37th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Peoria, IL 30.6 mi, the nearest city with its own station