Summit, Sunday, 11 October, 18:06
Clear. Feels like 74°. High 76°, low 54°.
Two-week outlook for Summit, IL: week one averages a high of 68.2° and week two 65.2°, so week two runs 3° cooler than week one. Around 3.8 inches of precipitation are expected over the 14 days, across 5 wet days. The nearest weekend, October 11: 76°, dry.
| Week | High | Low | Precipitation | Vs normal |
|---|---|---|---|---|
| 1st (October 11 – October 17) | 68.2° | 55.4° | 2.1 in / 2 d | +6° |
| 2nd (October 18 – October 24) | 65.2° | 53.2° | 1.7 in / 3 d | +6° |
Summit, Monday, 12 October
Clear. High 85°, low 64°.
Summit, Tuesday, 13 October
Clear. High 80°, low 66°.
Summit, Wednesday, 14 October
Heavy rain. High 67°, low 60°.
Summit, Thursday, 15 October
Heavy rain. High 60°, low 57°.
Summit, Friday, 16 October
Mostly clear. High 58°, low 47°.
Summit, Saturday, 17 October
Clear. High 50°, low 39°.
Summit, Sunday, 18 October
Clear. High 58°, low 39°.
Summit, Monday, 19 October
Clear. High 65°, low 47°.
Summit, Tuesday, 20 October
Overcast. High 65°, low 53°.
Summit, Wednesday, 21 October
Overcast. High 68°, low 58°.
Summit, Thursday, 22 October
Light rain. High 74°, low 63°.
Summit, Friday, 23 October
Rain. High 63°, low 61°.
Summit, Saturday, 24 October
Rain. High 63°, low 51°.
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 Summit, 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.