Weather in Grand Junction, IA
Grand Junction, Tuesday, 20 October, 12:38
Clear. Feels like 66°. High 68°, low 41°.
Monthly outlook for Grand Junction, IA: average high 58.8°, average low 42.7°. That is 1.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.7 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 24 October (73.1°), the coolest 28 October (30.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 61.1° | 58.6° | +1.4° |
| 30 October – 8 November | 55.1° | 53.1° | +1.1° |
| 9 November – 18 November | at normal | 47.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jefferson (7 mi).
0Grand Junction, Wednesday, 21 October
Clear. High 72°, low 46°.
0Grand Junction, Thursday, 22 October
Clear. High 72°, low 49°.
0
Grand Junction, Friday, 23 October
Overcast. High 72°, low 52°.
0.01
Grand Junction, Saturday, 24 October
Light rain. High 73°, low 59°.
0.25Grand Junction, Sunday, 25 October
Rain. High 62°, low 52°.
1.1Grand Junction, Monday, 26 October
Rain. High 51°, low 37°.
0Grand Junction, Tuesday, 27 October
Overcast. High 41°, low 34°.
0Grand Junction, Wednesday, 28 October
Clear. High 50°, low 30°.
0Grand Junction, Thursday, 29 October
Clear. High 49°, low 35°.
0Grand Junction, Friday, 30 October
Clear. High 45°, low 32°.
0Grand Junction, Saturday, 31 October
Overcast. High 53°, low 33°.
0Grand Junction, Sunday, 1 November
Clear. High 53°, low 39°.
0
Grand Junction, Monday, 2 November
Mostly clear. High 60°, low 38°.
0.37Grand Junction, Tuesday, 3 November
Rain. High 54°, low 52°.
0Grand Junction, Wednesday, 4 November
Clear. High 66°, low 53°.
0.05
Grand Junction, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Grand Junction, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Grand Junction, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Grand Junction, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Grand Junction, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Grand Junction, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Grand Junction, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Grand Junction, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Grand Junction, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Grand Junction, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Grand Junction, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Grand Junction, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Grand Junction, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Grand Junction, Wednesday, 18 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 Junction, 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 Junction, 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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