Weather in Hammer, SD
Hammer, Friday, 9 October, 20:29
Mostly clear. Feels like 65°. High 73°, low 44°.
Monthly outlook for Hammer, SD: average high 57.4°, average low 43.2°. That is 0.5° above the climate normal for October. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 10 October (83.9°), the coolest 17 October (26.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 58.6° | 57.4° | +0.6° |
| 19 October – 28 October | 55.3° | 53.7° | +0.9° |
| 29 October – 7 November | at normal | 47.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — New Effington (5 mi).
0
Hammer, Saturday, 10 October
Mostly clear. High 84°, low 57°.
0
Hammer, Sunday, 11 October
Overcast. High 65°, low 51°.
0.29
Hammer, Monday, 12 October
Heavy rain. High 53°, low 49°.
0Hammer, Tuesday, 13 October
Light rain. High 52°, low 47°.
0Hammer, Wednesday, 14 October
Overcast. High 57°, low 47°.
0.07Hammer, Thursday, 15 October
Light rain. High 56°, low 41°.
0.38
Hammer, Friday, 16 October
Snow. High 49°, low 34°.
0
Hammer, Saturday, 17 October
Clear. High 38°, low 26°.
0Hammer, Sunday, 18 October
Overcast. High 57°, low 34°.
0Hammer, Monday, 19 October
Overcast. High 57°, low 38°.
0.21Hammer, Tuesday, 20 October
Rain. High 62°, low 50°.
0.09Hammer, Wednesday, 21 October
Light rain. High 58°, low 50°.
0Hammer, Thursday, 22 October
Clear. High 57°, low 42°.
0.63Hammer, Friday, 23 October
Rain. High 49°, low 44°.
0
Hammer, Saturday, 24 October
Partly cloudy. High 48°, low 36°.
0.04Hammer, Sunday, 25 October
Climate normal for this date — 60-year average.
0.04Hammer, Monday, 26 October
Climate normal for this date — 60-year average.
0.06Hammer, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.03Hammer, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.07Hammer, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Hammer, Friday, 30 October
Climate normal for this date — 60-year average.
0.09Hammer, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Hammer, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04Hammer, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Hammer, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Hammer, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Hammer, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Hammer, Friday, 6 November
Climate normal for this date — 60-year average.
0.04Hammer, Saturday, 7 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
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 Hammer, SD are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
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.
Where do the 66-year records come from?
They are real temperature extremes recorded in Hammer, SD since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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