Lewistown, Sunday, 9 August, 11:27
Partly cloudy. Feels like 96°. High 92°, low 69°.
Two-week outlook for Lewistown, IL: week one averages a high of 88.7° and week two 83.4°, so week two runs 5.2° cooler than week one. Around 3.1 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, August 9: 92°, dry.
| Week | High | Low | Precipitation | Vs normal |
|---|---|---|---|---|
| 1st (August 9 – August 15) | 88.7° | 70.3° | 3.1 in / 4 d | — |
| 2nd (August 16 – August 22) | 83.4° | 63.9° | 0.0 in / 0 d | — |
Lewistown, Monday, 10 August
Overcast. High 97°, low 76°.
Lewistown, Tuesday, 11 August
Mostly clear. High 104°, low 78°.
Lewistown, Wednesday, 12 August
Light rain. High 93°, low 72°.
Lewistown, Thursday, 13 August
Heavy rain. High 76°, low 65°.
Lewistown, Friday, 14 August
Rain. High 76°, low 65°.
Lewistown, Saturday, 15 August
Light rain. High 83°, low 66°.
Lewistown, Sunday, 16 August
Overcast. High 81°, low 69°.
Lewistown, Monday, 17 August
Partly cloudy. High 79°, low 61°.
Lewistown, Tuesday, 18 August
Overcast. High 86°, low 62°.
Lewistown, Wednesday, 19 August
Overcast. High 81°, low 65°.
Lewistown, Thursday, 20 August
Clear. High 82°, low 60°.
Lewistown, Friday, 21 August
Light rain. High 88°, low 62°.
Lewistown, Saturday, 22 August
Light rain. High 87°, low 67°.
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 Lewistown, 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.