Weather in Grand River, IA
Grand River, Friday, 30 October, 09:49
Light rain. Feels like 53°. High 69°, low 53°.
Monthly outlook for Grand River, IA: average high 55°, average low 46.8°. That is 1.4° above the climate normal for October. Precipitation is expected on 10 days (about 2.4 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 30 October (69.1°), the coolest 12 November (35.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 61.4° | 54.4° | +3.9° |
| 9 November – 18 November | 44.3° | 49.5° | -2.9° |
| 19 November – 28 November | at normal | 45° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Kellerton (9 mi).
0.06Grand River, Saturday, 31 October
Light rain. High 66°, low 59°.
0
Grand River, Sunday, 1 November
Overcast. High 68°, low 58°.
0.23Grand River, Monday, 2 November
Light rain. High 65°, low 60°.
0.14Grand River, Tuesday, 3 November
Light rain. High 64°, low 55°.
0.01Grand River, Wednesday, 4 November
Light rain. High 58°, low 50°.
0
Grand River, Thursday, 5 November
Clear. High 61°, low 45°.
0Grand River, Friday, 6 November
Overcast. High 60°, low 46°.
0Grand River, Saturday, 7 November
Overcast. High 57°, low 48°.
0.17Grand River, Sunday, 8 November
Rain. High 46°, low 41°.
0.22Grand River, Monday, 9 November
Light rain. High 41°, low 39°.
0.06Grand River, Tuesday, 10 November
Light rain. High 42°, low 40°.
0Grand River, Wednesday, 11 November
Overcast. High 47°, low 38°.
0.09Grand River, Thursday, 12 November
Light rain. High 49°, low 36°.
0.91Grand River, Friday, 13 November
Rain. High 45°, low 42°.
0.17Grand River, Saturday, 14 November
Light rain. High 42°, low 39°.
0.06
Grand River, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04
Grand 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.
0.08Grand River, Monday, 23 November
Climate normal for this date — 60-year average.
0.06Grand River, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Grand River, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.1Grand River, Thursday, 26 November
Climate normal for this date — 60-year average.
0.1
Grand River, Friday, 27 November
Climate normal for this date — 60-year average.
0.06Grand River, Saturday, 28 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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