Rock Falls, Sunday, 9 August, 01:33
Mostly clear. Feels like 68°. High 85°, low 64°.
Two-week outlook for Rock Falls, IL: week one averages a high of 80.9° and week two 75.4°, so week two runs 5.5° cooler than week one. Around 1.0 inches of precipitation are expected over the 14 days, across 6 wet days. The nearest weekend, August 9: 85°, with precipitation.
| Week | High | Low | Precipitation | Vs normal |
|---|---|---|---|---|
| 1st (August 9 – August 15) | 80.9° | 65.1° | 0.9 in / 4 d | — |
| 2nd (August 16 – August 22) | 75.4° | 59.2° | 0.2 in / 2 d | — |
Rock Falls, Monday, 10 August
Rain. High 89°, low 72°.
Rock Falls, Tuesday, 11 August
Light rain. High 85°, low 70°.
Rock Falls, Wednesday, 12 August
Light rain. High 84°, low 68°.
Rock Falls, Thursday, 13 August
Rain. High 75°, low 62°.
Rock Falls, Friday, 14 August
Light rain. High 73°, low 60°.
Rock Falls, Saturday, 15 August
Light rain. High 75°, low 60°.
Rock Falls, Sunday, 16 August
Light rain. High 77°, low 64°.
Rock Falls, Monday, 17 August
Overcast. High 78°, low 64°.
Rock Falls, Tuesday, 18 August
Overcast. High 83°, low 65°.
Rock Falls, Wednesday, 19 August
Light rain. High 74°, low 60°.
Rock Falls, Thursday, 20 August
Light rain. High 68°, low 53°.
Rock Falls, Friday, 21 August
Overcast. High 73°, low 53°.
Rock Falls, Saturday, 22 August
Overcast. High 74°, low 56°.
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 Rock Falls, 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.