Weather in Lyman, SD
Lyman, Saturday, 17 October, 14:49
Clear. Feels like 65°. High 68°, low 39°.
Monthly outlook for Lyman, SD: average high 64.3°, average low 45.6°. That is 3.8° above the climate normal for October. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (82.7°), the coolest 31 October (33°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 68° | 59.4° | +4.8° |
| 27 October – 5 November | 58.2° | 53° | +2.9° |
| 6 November – 15 November | at normal | 47.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Kennebec (6 mi).
0Lyman, Sunday, 18 October
Clear. High 67°, low 45°.
0
Lyman, Monday, 19 October
Overcast. High 62°, low 45°.
0Lyman, Tuesday, 20 October
Clear. High 69°, low 48°.
0Lyman, Wednesday, 21 October
Clear. High 68°, low 50°.
0Lyman, Thursday, 22 October
Clear. High 74°, low 51°.
0.06
Lyman, Friday, 23 October
Light rain. High 83°, low 62°.
0.03Lyman, Saturday, 24 October
Light rain. High 64°, low 46°.
0Lyman, Sunday, 25 October
Clear. High 58°, low 43°.
0Lyman, Monday, 26 October
Overcast. High 66°, low 49°.
0
Lyman, Tuesday, 27 October
Mostly clear. High 77°, low 47°.
0Lyman, Wednesday, 28 October
Overcast. High 59°, low 47°.
0Lyman, Thursday, 29 October
Overcast. High 68°, low 42°.
0.57Lyman, Friday, 30 October
Rain. High 52°, low 45°.
0.5
Lyman, Saturday, 31 October
Snow. High 39°, low 33°.
0Lyman, Sunday, 1 November
Overcast. High 55°, low 38°.
0.02Lyman, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Lyman, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Lyman, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Lyman, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Lyman, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Lyman, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Lyman, Sunday, 8 November
Climate normal for this date — 60-year average.
0.05
Lyman, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Lyman, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Lyman, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Lyman, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Lyman, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Lyman, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Lyman, Sunday, 15 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 Lyman, 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 Lyman, 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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