Weather in Grassland Colony, SD
Grassland Colony, Sunday, 9 August, 06:39
Partly cloudy. Feels like 65°. High 84°, low 65°.
Monthly outlook for Grassland Colony, SD: average high 85.8°, average low 64.5°. That is 2.4° above the climate normal for August. Precipitation is expected on 10 days (about 1.8 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 19 August (100°), the coolest 14 August (57.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.5° | 81.5° | +1.7° |
| 19 August – 28 August | 87.9° | 81.3° | +3.7° |
| 29 August – 7 September | at normal | 79.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Carthage (9 mi).
0.51
Grassland Colony, Monday, 10 August
Heavy rain. High 84°, low 60°.
0.06Grassland Colony, Tuesday, 11 August
Light rain. High 92°, low 64°.
0
Grassland Colony, Wednesday, 12 August
Mostly clear. High 91°, low 64°.
0.12Grassland Colony, Thursday, 13 August
Light rain. High 70°, low 60°.
0
Grassland Colony, Friday, 14 August
Overcast. High 74°, low 57°.
0.03Grassland Colony, Saturday, 15 August
Light rain. High 74°, low 61°.
0Grassland Colony, Sunday, 16 August
Overcast. High 90°, low 64°.
0.08Grassland Colony, Monday, 17 August
Light rain. High 87°, low 64°.
0.15Grassland Colony, Tuesday, 18 August
Light rain. High 99°, low 71°.
0.04Grassland Colony, Wednesday, 19 August
Light rain. High 100°, low 72°.
0.02Grassland Colony, Thursday, 20 August
Light rain. High 87°, low 70°.
0.06Grassland Colony, Friday, 21 August
Light rain. High 87°, low 64°.
0.17Grassland Colony, Saturday, 22 August
Rain. High 96°, low 67°.
0.42Grassland Colony, Sunday, 23 August
Rain. High 81°, low 66°.
0.12Grassland Colony, Monday, 24 August
Light rain. High 76°, low 65°.
0.07Grassland Colony, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.1Grassland Colony, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.06Grassland Colony, Thursday, 27 August
Climate normal for this date — 60-year average.
0.09Grassland Colony, Friday, 28 August
Climate normal for this date — 60-year average.
0.07Grassland Colony, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Grassland Colony, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Grassland Colony, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Grassland Colony, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.07Grassland Colony, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.06Grassland Colony, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Grassland Colony, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Grassland Colony, Saturday, 5 September
Climate normal for this date — 60-year average.
0.06Grassland Colony, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Grassland Colony, Monday, 7 September
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 Grassland Colony, 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 Grassland Colony, 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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