Weather in Grand Junction, IA
Grand Junction, Thursday, 15 October, 18:44
Overcast. Feels like 50°. High 55°, low 48°.
Monthly outlook for Grand Junction, IA: average high 62.1°, average low 49°. That is 1.7° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 20 October (68.3°), the coolest 17 October (33.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 61.6° | 60.4° | +0.7° |
| 25 October – 3 November | 63° | 55.6° | +4.1° |
| 4 November – 13 November | at normal | 49.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jefferson (7 mi).
0.01
Grand Junction, Friday, 16 October
Light rain. High 52°, low 41°.
0
Grand Junction, Saturday, 17 October
Clear. High 58°, low 34°.
0Grand Junction, Sunday, 18 October
Clear. High 63°, low 42°.
0Grand Junction, Monday, 19 October
Overcast. High 63°, low 45°.
0
Grand Junction, Tuesday, 20 October
Mostly clear. High 68°, low 46°.
0.02Grand Junction, Wednesday, 21 October
Light rain. High 60°, low 52°.
0.24Grand Junction, Thursday, 22 October
Light rain. High 65°, low 59°.
0.03Grand Junction, Friday, 23 October
Light rain. High 66°, low 56°.
0.08Grand Junction, Saturday, 24 October
Light rain. High 66°, low 55°.
0Grand Junction, Sunday, 25 October
Clear. High 63°, low 48°.
0Grand Junction, Monday, 26 October
Overcast. High 67°, low 51°.
0Grand Junction, Tuesday, 27 October
Overcast. High 66°, low 56°.
0.11Grand Junction, Wednesday, 28 October
Light rain. High 61°, low 57°.
0.86Grand Junction, Thursday, 29 October
Rain. High 64°, low 49°.
0
Grand Junction, Friday, 30 October
Partly cloudy. High 58°, low 44°.
0.1Grand Junction, Saturday, 31 October
Climate normal for this date — 60-year average.
0.15
Grand Junction, Sunday, 1 November
Climate normal for this date — 60-year average.
0.06Grand Junction, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Grand Junction, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Grand Junction, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.05Grand 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.
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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