Weather in Lyons, SD
Lyons, Wednesday, 7 October, 18:39
Overcast. Feels like 71°. High 74°, low 48°.
Monthly outlook for Lyons, SD: average high 63.2°, average low 47.5°. That is 2.6° above the climate normal for October. Precipitation is expected on 5 days (about 4.1 inches), against a normal of 3 days and 1.2 inches. The warmest day looks like 10 October (82.6°), the coolest 17 October (34.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 68.5° | 59.5° | +5° |
| 17 October – 26 October | 54.3° | 55.5° | -0.7° |
| 27 October – 5 November | at normal | 49.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Rustic Acres Colony (15 mi).
0
Lyons, Thursday, 8 October
Partly cloudy. High 75°, low 47°.
0
Lyons, Friday, 9 October
Clear. High 79°, low 52°.
0Lyons, Saturday, 10 October
Clear. High 83°, low 66°.
0Lyons, Sunday, 11 October
Overcast. High 80°, low 62°.
0.04
Lyons, Monday, 12 October
Light rain. High 54°, low 48°.
0Lyons, Tuesday, 13 October
Partly cloudy. High 60°, low 42°.
0.96Lyons, Wednesday, 14 October
Rain. High 66°, low 55°.
2.22Lyons, Thursday, 15 October
Heavy rain. High 63°, low 48°.
0Lyons, Friday, 16 October
Partly cloudy. High 50°, low 40°.
0Lyons, Saturday, 17 October
Clear. High 51°, low 35°.
0.53Lyons, Sunday, 18 October
Rain. High 51°, low 40°.
0.34Lyons, Monday, 19 October
Rain. High 55°, low 45°.
0Lyons, Tuesday, 20 October
Clear. High 60°, low 45°.
0
Lyons, Wednesday, 21 October
Mostly clear. High 58°, low 48°.
0Lyons, Thursday, 22 October
Overcast. High 51°, low 41°.
0.09Lyons, Friday, 23 October
Climate normal for this date — 60-year average.
0.03Lyons, Saturday, 24 October
Climate normal for this date — 60-year average.
0.05Lyons, Sunday, 25 October
Climate normal for this date — 60-year average.
0.02Lyons, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Lyons, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.03Lyons, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Lyons, Thursday, 29 October
Climate normal for this date — 60-year average.
0.13Lyons, Friday, 30 October
Climate normal for this date — 60-year average.
0.08Lyons, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Lyons, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04Lyons, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Lyons, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Lyons, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Lyons, Thursday, 5 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 Lyons, 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 Lyons, 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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