Decatur, IL 62525 Monthly Weather

Macon County4:54 AM CDT39.85°N, 88.98°W
← September

October 2026

Sun
Mon
Tue
Wed
Thu
Fri
Sat
188°/64°0.58 inAvg 73°/49°
272°/45°<0.01 inAvg 73°/49°
373°/42°Avg 72°/49°
478°/45°Avg 72°/48°
573°/44°Avg 72°/48°
675°/41°Avg 71°/48°
785°/54°Avg 71°/47°
880°/47°Avg 70°/47°
985°/48°Avg 70°/47°
1081°/47°Avg 69°/46°
1181°/49°Avg 69°/46°
1289°/63°Avg 68°/46°
1390°/66°Avg 68°/45°
1479°/64°<0.01 inAvg 67°/45°
1574°/56°0.61 inAvg 67°/45°
1656°/45°0.10 inAvg 66°/44°
1757°/37°Avg 66°/44°
1864°/32°Avg 65°/44°
1969°/35°Avg 65°/43°
2072°/37°Avg 64°/43°
21Avg 64°/43°
22 Sunny 76°/45°Avg 63°/42°
23 Sunny 74°/44°Avg 63°/42°
24 Mostly Sunny 74°/46°Avg 62°/42°
25 Mostly Sunny 77°/49°Avg 62°/42°
26 Partly Sunny 76°/49°Avg 61°/41°
27 Partly Sunny 70°/45°Avg 61°/41°
28 Mostly Sunny 67°/–Avg 60°/40°
29 Partly cloudy 64°/40°Avg 60°/40°
30 Partly cloudy 64°/49°Avg 59°/40°
31Avg 59°/40°
Average high76° (normal 69°)
Average low48° (normal 46°)
Warmest / coldest90° / 32°
Precipitation1.29 in (normal 2.05 in to date)
Record high today82° (2020)
Record low today30° (2013)

Observed: Decatur Ap, 10 km away, records since 2000. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.