Weather in Sinai, SD
Sinai, Tuesday, 20 October, 18:46
Clear. Feels like 63°. High 67°, low 41°.
Monthly outlook for Sinai, SD: average high 53.8°, average low 39.7°. That is 1.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (70.5°), the coolest 29 October (27.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 55.7° | 53.6° | +1.2° |
| 30 October – 8 November | 50.6° | 47.8° | +1.6° |
| 9 November – 18 November | at normal | 41.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Nunda (6 mi).
0
Sinai, Wednesday, 21 October
Clear. High 69°, low 45°.
0
Sinai, Thursday, 22 October
Mostly clear. High 71°, low 46°.
0.01
Sinai, Friday, 23 October
Light rain. High 70°, low 56°.
0.35Sinai, Saturday, 24 October
Rain. High 62°, low 50°.
0.23Sinai, Sunday, 25 October
Rain. High 50°, low 44°.
0.3Sinai, Monday, 26 October
Rain. High 43°, low 36°.
0.06
Sinai, Tuesday, 27 October
Light snow. High 37°, low 32°.
0
Sinai, Wednesday, 28 October
Partly cloudy. High 47°, low 28°.
0
Sinai, Thursday, 29 October
Overcast. High 43°, low 27°.
0Sinai, Friday, 30 October
Overcast. High 46°, low 33°.
0.05Sinai, Saturday, 31 October
Light rain. High 49°, low 44°.
0Sinai, Sunday, 1 November
Overcast. High 57°, low 47°.
0Sinai, Monday, 2 November
Clear. High 48°, low 34°.
0Sinai, Tuesday, 3 November
Overcast. High 57°, low 35°.
0Sinai, Wednesday, 4 November
Overcast. High 46°, low 36°.
0.04Sinai, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Sinai, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Sinai, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Sinai, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13Sinai, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Sinai, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.03Sinai, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Sinai, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Sinai, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Sinai, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Sinai, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Sinai, Monday, 16 November
Climate normal for this date — 60-year average.
0.05Sinai, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Sinai, Wednesday, 18 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 Sinai, 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 Sinai, 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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