Big Springs, Sunday, 9 August, 09:35
Partly cloudy. Feels like 77°. High 87°, low 68°.
Big Springs, Monday, 10 August
Rain. High 84°, low 63°.
Big Springs, Tuesday, 11 August
Overcast. High 96°, low 68°.
Big Springs, Wednesday, 12 August
Overcast. High 97°, low 69°.
Big Springs, Thursday, 13 August
Rain. High 76°, low 67°.
Big Springs, Friday, 14 August
Light rain. High 78°, low 62°.
Big Springs, Saturday, 15 August
Rain. High 77°, low 66°.
Big Springs, Sunday, 16 August
Overcast. High 82°, low 63°.
Big Springs, Monday, 17 August
Overcast. High 79°, low 65°.
Big Springs, Tuesday, 18 August
Heavy rain. High 92°, low 60°.
Big Springs, Wednesday, 19 August
Partly cloudy. High 82°, low 61°.
Big Springs, Thursday, 20 August
Overcast. High 88°, low 60°.
Big Springs, Friday, 21 August
Clear. High 96°, low 65°.
Big Springs, Saturday, 22 August
Overcast. High 87°, low 63°.
Big Springs, Sunday, 23 August
Mostly clear. High 91°, low 60°.
Big Springs, Monday, 24 August
Clear. High 99°, low 63°.
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 Big Springs, SD 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 Big Springs, SD 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.