Cisne, Saturday, 8 August, 13:15
Clear. Feels like 102°. High 90°, low 72°.
Cisne, Sunday, 9 August
Clear. High 92°, low 74°.
Cisne, Monday, 10 August
Partly cloudy. High 95°, low 76°.
Cisne, Tuesday, 11 August
Partly cloudy. High 95°, low 76°.
Cisne, Wednesday, 12 August
Light rain. High 89°, low 71°.
Cisne, Thursday, 13 August
Light rain. High 75°, low 65°.
Cisne, Friday, 14 August
Partly cloudy. High 76°, low 58°.
Cisne, Saturday, 15 August
Light rain. High 80°, low 57°.
Cisne, Sunday, 16 August
Rain. High 72°, low 64°.
Cisne, Monday, 17 August
Rain. High 87°, low 71°.
Cisne, Tuesday, 18 August
Light rain. High 87°, low 69°.
Cisne, Wednesday, 19 August
Rain. High 90°, low 68°.
Cisne, Thursday, 20 August
Light rain. High 73°, low 58°.
Cisne, Friday, 21 August
Clear. High 73°, low 51°.
Cisne, Saturday, 22 August
Clear. High 75°, low 53°.
Cisne, Sunday, 23 August
Clear. High 78°, low 55°.
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Cisne, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
They are real temperature extremes recorded in Cisne, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.