Weather in Grand River, IA
Grand River, Saturday, 24 October, 14:08
Partly cloudy. Feels like 75°. High 76°, low 56°.
Monthly outlook for Grand River, IA: average high 65.7°, average low 52.8°. That is 5.6° above the climate normal for October. Precipitation is expected on 7 days (about 2.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 25 October (76.2°), the coolest 4 November (40.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 68.2° | 57.1° | +6.1° |
| 3 November – 12 November | 61.7° | 51.9° | +5.4° |
| 13 November – 22 November | at normal | 48.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Kellerton (9 mi).
0
Grand River, Sunday, 25 October
Overcast. High 76°, low 53°.
0Grand River, Monday, 26 October
Overcast. High 73°, low 56°.
0.06
Grand River, Tuesday, 27 October
Light rain. High 69°, low 57°.
0.13Grand River, Wednesday, 28 October
Light rain. High 73°, low 56°.
0.31Grand River, Thursday, 29 October
Rain. High 67°, low 59°.
0.5Grand River, Friday, 30 October
Rain. High 67°, low 59°.
0.51Grand River, Saturday, 31 October
Rain. High 61°, low 56°.
0.22Grand River, Sunday, 1 November
Rain. High 64°, low 51°.
0.6Grand River, Monday, 2 November
Rain. High 56°, low 47°.
0
Grand River, Tuesday, 3 November
Clear. High 58°, low 41°.
0Grand River, Wednesday, 4 November
Overcast. High 53°, low 40°.
0Grand River, Thursday, 5 November
Overcast. High 63°, low 47°.
0Grand River, Friday, 6 November
Overcast. High 65°, low 61°.
0.03Grand River, Saturday, 7 November
Light rain. High 70°, low 58°.
0Grand River, Sunday, 8 November
Clear. High 61°, low 48°.
0.1
Grand River, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Grand River, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Grand River, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Grand River, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07
Grand River, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Grand River, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Grand River, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Grand River, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Grand River, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.05Grand River, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Grand River, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Grand River, Friday, 20 November
Climate normal for this date — 60-year average.
0.03Grand River, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Grand River, Sunday, 22 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 Grand River, IA 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 River, IA 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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