Weather in Grand River, IA
Grand River, Sunday, 25 October, 06:53
Overcast. Feels like 55°. High 75°, low 52°.
Monthly outlook for Grand River, IA: average high 66.1°, average low 52°. That is 6° above the climate normal for October. Precipitation is expected on 6 days (about 1.2 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 25 October (75.4°), the coolest 8 November (39.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 70° | 56.7° | +7.4° |
| 4 November – 13 November | 59.6° | 51.4° | +4.6° |
| 14 November – 23 November | at normal | 48.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Kellerton (9 mi).
0Grand River, Monday, 26 October
Overcast. High 74°, low 54°.
0.06
Grand River, Tuesday, 27 October
Light rain. High 67°, low 60°.
0
Grand River, Wednesday, 28 October
Clear. High 75°, low 59°.
0.06Grand River, Thursday, 29 October
Light rain. High 73°, low 61°.
0.44Grand River, Friday, 30 October
Rain. High 74°, low 61°.
0.13Grand River, Saturday, 31 October
Light rain. High 62°, low 58°.
0.02Grand River, Sunday, 1 November
Light rain. High 67°, low 59°.
0.16Grand River, Monday, 2 November
Light rain. High 74°, low 61°.
0
Grand River, Tuesday, 3 November
Partly cloudy. High 58°, low 46°.
0Grand River, Wednesday, 4 November
Clear. High 57°, low 40°.
0Grand River, Thursday, 5 November
Overcast. High 65°, low 44°.
0Grand River, Friday, 6 November
Overcast. High 64°, low 47°.
0Grand River, Saturday, 7 November
Overcast. High 54°, low 43°.
0Grand River, Sunday, 8 November
Partly cloudy. High 59°, low 39°.
0.32Grand River, Monday, 9 November
Rain. High 59°, low 49°.
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.
0.08Grand River, Monday, 23 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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