Harper, Thursday, 8 October, 13:47
Mostly clear. Feels like 68°. High 70°, low 47°.
Two-week outlook for Harper, IL: week one averages a high of 70.3° and week two 64.2°, so week two runs 6.1° cooler than week one. Around 0.9 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, October 10: 75°, dry.
| Week | High | Low | Precipitation | Vs normal |
|---|---|---|---|---|
| 1st (October 8 – October 14) | 70.3° | 53.8° | 0.7 in / 3 d | — |
| 2nd (October 15 – October 21) | 64.2° | 47.1° | 0.1 in / 1 d | — |
Harper, Friday, 9 October
Light rain. High 71°, low 48°.
Harper, Saturday, 10 October
Overcast. High 75°, low 59°.
Harper, Sunday, 11 October
Clear. High 74°, low 55°.
Harper, Monday, 12 October
Partly cloudy. High 79°, low 60°.
Harper, Tuesday, 13 October
Light rain. High 67°, low 58°.
Harper, Wednesday, 14 October
Rain. High 55°, low 50°.
Harper, Thursday, 15 October
Light rain. High 82°, low 60°.
Harper, Friday, 16 October
Overcast. High 65°, low 48°.
Harper, Saturday, 17 October
Partly cloudy. High 53°, low 39°.
Harper, Sunday, 18 October
Overcast. High 53°, low 39°.
Harper, Monday, 19 October
Light rain. High 63°, low 45°.
Harper, Tuesday, 20 October
Clear. High 68°, low 49°.
Harper, Wednesday, 21 October
Mostly clear. High 65°, low 48°.
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 Harper, 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.