Sumter, Thursday, 8 October, 04:01
Partly cloudy. Feels like 50°. High 83°, low 50°.
Sumter, Friday, 9 October
Clear. High 86°, low 53°.
Sumter, Saturday, 10 October
Clear. High 83°, low 65°.
Sumter, Sunday, 11 October
Overcast. High 83°, low 66°.
Sumter, Monday, 12 October
Clear. High 74°, low 59°.
Sumter, Tuesday, 13 October
Light rain. High 55°, low 48°.
Sumter, Wednesday, 14 October
Light rain. High 86°, low 56°.
Sumter, Thursday, 15 October
Light rain. High 76°, low 58°.
Sumter, Friday, 16 October
Overcast. High 50°, low 45°.
Sumter, Saturday, 17 October
Mostly clear. High 58°, low 37°.
Sumter, Sunday, 18 October
Rain. High 61°, low 44°.
Sumter, Monday, 19 October
Light rain. High 68°, low 53°.
Sumter, Tuesday, 20 October
Clear. High 74°, low 50°.
Sumter, Wednesday, 21 October
Clear. High 80°, low 56°.
Sumter, Thursday, 22 October
Overcast. High 71°, low 60°.
Sumter, Friday, 23 October
Partly cloudy. High 82°, low 54°.
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 Sumter, NE 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 Sumter, NE 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.