Sumner, Sunday, 11 October, 05:04
Partly cloudy. Feels like 63°. High 77°, low 58°.
Two-week outlook for Sumner, IL: week one averages a high of 75.5° and week two 66.4°, so week two runs 9.1° cooler than week one. Around 0.9 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, October 11: 77°, dry.
| Week | High | Low | Precipitation | Vs normal |
|---|---|---|---|---|
| 1st (October 11 – October 17) | 75.5° | 57.5° | 0.9 in / 3 d | — |
| 2nd (October 18 – October 24) | 66.4° | 43.6° | 0.0 in / 0 d | — |
Sumner, Monday, 12 October
Partly cloudy. High 87°, low 57°.
Sumner, Tuesday, 13 October
Clear. High 88°, low 68°.
Sumner, Wednesday, 14 October
Rain. High 84°, low 71°.
Sumner, Thursday, 15 October
Rain. High 77°, low 67°.
Sumner, Friday, 16 October
Light rain. High 71°, low 47°.
Sumner, Saturday, 17 October
Overcast. High 45°, low 34°.
Sumner, Sunday, 18 October
Clear. High 51°, low 31°.
Sumner, Monday, 19 October
Mostly clear. High 60°, low 34°.
Sumner, Tuesday, 20 October
Clear. High 67°, low 40°.
Sumner, Wednesday, 21 October
Overcast. High 70°, low 46°.
Sumner, Thursday, 22 October
Clear. High 73°, low 52°.
Sumner, Friday, 23 October
Clear. High 73°, low 50°.
Sumner, Saturday, 24 October
Overcast. High 71°, low 52°.
Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.
It is the gap between the forecast and the climate normal for those same dates in Sumner, IL, computed over 60 years. A positive value means the week runs warmer than usual.
Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.