Lerna, Friday, 16 October, 18:32
Light rain. Feels like 51°. High 64°, low 50°.
Two-week outlook for Lerna, IL: week one averages a high of 67.3° and week two 68.7°, so week two runs 1.4° warmer than week one. Around 0.0 inches of precipitation are expected over the 14 days, across 1 wet days. The nearest weekend, October 17: 61°, dry.
| Week | High | Low | Precipitation | Vs normal |
|---|---|---|---|---|
| 1st (October 16 – October 22) | 67.3° | 45.8° | 0.0 in / 1 d | — |
| 2nd (October 23 – October 29) | 68.7° | 49.8° | 0.0 in / 0 d | — |
Lerna, Saturday, 17 October
Clear. High 61°, low 41°.
Lerna, Sunday, 18 October
Clear. High 62°, low 39°.
Lerna, Monday, 19 October
Clear. High 67°, low 42°.
Lerna, Tuesday, 20 October
Overcast. High 70°, low 45°.
Lerna, Wednesday, 21 October
Mostly clear. High 72°, low 52°.
Lerna, Thursday, 22 October
Mostly clear. High 74°, low 51°.
Lerna, Friday, 23 October
Overcast. High 75°, low 54°.
Lerna, Saturday, 24 October
Overcast. High 77°, low 57°.
Lerna, Sunday, 25 October
Overcast. High 78°, low 55°.
Lerna, Monday, 26 October
Overcast. High 65°, low 49°.
Lerna, Tuesday, 27 October
Clear. High 59°, low 36°.
Lerna, Wednesday, 28 October
Overcast. High 60°, low 44°.
Lerna, Thursday, 29 October
Light rain. High 67°, low 53°.
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 Lerna, 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.