Ralph, Wednesday, 7 October, 22:41
Overcast. Feels like 47°. High 74°, low 45°.
Ralph, Thursday, 8 October
Clear. High 73°, low 45°.
Ralph, Friday, 9 October
Overcast. High 81°, low 46°.
Ralph, Saturday, 10 October
Rain. High 72°, low 50°.
Ralph, Sunday, 11 October
Light rain. High 50°, low 38°.
Ralph, Monday, 12 October
Snow. High 36°, low 33°.
Ralph, Tuesday, 13 October
Clear. High 56°, low 27°.
Ralph, Wednesday, 14 October
Overcast. High 67°, low 52°.
Ralph, Thursday, 15 October
Light rain. High 51°, low 37°.
Ralph, Friday, 16 October
Overcast. High 38°, low 33°.
Ralph, Saturday, 17 October
Clear. High 50°, low 29°.
Ralph, Sunday, 18 October
Partly cloudy. High 63°, low 39°.
Ralph, Monday, 19 October
Partly cloudy. High 55°, low 45°.
Ralph, Tuesday, 20 October
Clear. High 56°, low 37°.
Ralph, Wednesday, 21 October
Overcast. High 69°, low 44°.
Ralph, Thursday, 22 October
Light rain. High 52°, low 41°.
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 Ralph, 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 Ralph, 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.