Weather in Grand Pass, MO
Grand Pass, Sunday, 9 August, 01:10
Partly cloudy. Feels like 79°. High 95°, low 77°.
Monthly outlook for Grand Pass, MO: average high 88.3°, average low 69.7°. That is 1.6° above the climate normal for August. Precipitation is expected on 8 days (about 1.0 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 11 August (100.2°), the coolest 21 August (58.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 89.2° | 85.4° | +2.1° |
| 19 August – 28 August | 86.8° | 85.5° | +0.7° |
| 29 August – 7 September | at normal | 83.2° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Marshall (14 mi).
0
Grand Pass, Monday, 10 August
Overcast. High 97°, low 78°.
0Grand Pass, Tuesday, 11 August
Overcast. High 100°, low 83°.
0.06
Grand Pass, Wednesday, 12 August
Rain. High 91°, low 70°.
0.07Grand Pass, Thursday, 13 August
Light rain. High 84°, low 69°.
0.19Grand Pass, Friday, 14 August
Light rain. High 73°, low 68°.
0.06Grand Pass, Saturday, 15 August
Light rain. High 90°, low 69°.
0.01Grand Pass, Sunday, 16 August
Light rain. High 84°, low 69°.
0.13Grand Pass, Monday, 17 August
Light rain. High 88°, low 69°.
0.23Grand Pass, Tuesday, 18 August
Rain. High 90°, low 70°.
0Grand Pass, Wednesday, 19 August
Overcast. High 89°, low 69°.
0
Grand Pass, Thursday, 20 August
Mostly clear. High 81°, low 61°.
0.2Grand Pass, Friday, 21 August
Light rain. High 77°, low 58°.
0Grand Pass, Saturday, 22 August
Overcast. High 90°, low 65°.
0Grand Pass, Sunday, 23 August
Overcast. High 96°, low 68°.
0.08Grand Pass, Monday, 24 August
Light rain. High 88°, low 71°.
0.11
Grand Pass, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.16Grand Pass, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.06Grand Pass, Thursday, 27 August
Climate normal for this date — 60-year average.
0.08Grand Pass, Friday, 28 August
Climate normal for this date — 60-year average.
0.09Grand Pass, Saturday, 29 August
Climate normal for this date — 60-year average.
0.13Grand Pass, Sunday, 30 August
Climate normal for this date — 60-year average.
0.14
Grand Pass, Monday, 31 August
Climate normal for this date — 60-year average.
0.15Grand Pass, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Grand Pass, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.08Grand Pass, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Grand Pass, Friday, 4 September
Climate normal for this date — 60-year average.
0.06Grand Pass, Saturday, 5 September
Climate normal for this date — 60-year average.
0.06Grand Pass, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09Grand Pass, 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 Grand Pass, MO 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 Grand Pass, MO 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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