Weather in Greenough, MT
Greenough, Wednesday, 21 October, 09:32
Clear. Feels like 39°. High 63°, low 34°.
Monthly outlook for Greenough, MT: average high 49.8°, average low 30.4°. That is 0.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 22 October (64.8°), the coolest 1 November (23.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 52.4° | 50.6° | +1° |
| 31 October – 9 November | 45.5° | 44.8° | +0.4° |
| 10 November – 19 November | at normal | 40.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Potomac (7 mi).
0.01
Greenough, Thursday, 22 October
Light rain. High 65°, low 34°.
0.66Greenough, Friday, 23 October
Rain. High 47°, low 34°.
0
Greenough, Saturday, 24 October
Overcast. High 46°, low 27°.
0
Greenough, Sunday, 25 October
Partly cloudy. High 51°, low 29°.
0
Greenough, Monday, 26 October
Mostly clear. High 47°, low 26°.
0.15Greenough, Tuesday, 27 October
Rain. High 49°, low 34°.
0.15Greenough, Wednesday, 28 October
Light rain. High 49°, low 37°.
0Greenough, Thursday, 29 October
Clear. High 53°, low 31°.
0Greenough, Friday, 30 October
Clear. High 54°, low 32°.
0.29
Greenough, Saturday, 31 October
Snow. High 40°, low 27°.
0Greenough, Sunday, 1 November
Overcast. High 46°, low 24°.
0Greenough, Monday, 2 November
Overcast. High 47°, low 29°.
0Greenough, Tuesday, 3 November
Overcast. High 50°, low 28°.
0Greenough, Wednesday, 4 November
Partly cloudy. High 49°, low 32°.
0.09Greenough, Thursday, 5 November
Light snow. High 41°, low 29°.
0.07
Greenough, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Greenough, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Greenough, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Greenough, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Greenough, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Greenough, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Greenough, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Greenough, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Greenough, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Greenough, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Greenough, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Greenough, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Greenough, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Greenough, Thursday, 19 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 Greenough, MT 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 Greenough, MT 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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