Weather in McNamara, MT
McNamara, Thursday, 22 October, 11:40
Clear. Feels like 51°. High 63°, low 37°.
Monthly outlook for McNamara, MT: average high 49.1°, average low 32.4°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 22 October (62.5°), the coolest 29 October (21.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 46.2° | 49.8° | -2° |
| 1 November – 10 November | 53.8° | 44.3° | +5.3° |
| 11 November – 20 November | at normal | 40.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Potomac (5 mi).
0.25
McNamara, Friday, 23 October
Light rain. High 43°, low 35°.
0.02McNamara, Saturday, 24 October
Light rain. High 50°, low 34°.
0
McNamara, Sunday, 25 October
Partly cloudy. High 46°, low 32°.
0
McNamara, Monday, 26 October
Overcast. High 49°, low 31°.
0.22McNamara, Tuesday, 27 October
Light rain. High 39°, low 35°.
0.8
McNamara, Wednesday, 28 October
Snow. High 40°, low 27°.
0McNamara, Thursday, 29 October
Overcast. High 42°, low 21°.
0.04McNamara, Friday, 30 October
Light rain. High 45°, low 32°.
0McNamara, Saturday, 31 October
Overcast. High 45°, low 31°.
0McNamara, Sunday, 1 November
Overcast. High 45°, low 29°.
0McNamara, Monday, 2 November
Overcast. High 52°, low 31°.
0
McNamara, Tuesday, 3 November
Mostly clear. High 55°, low 33°.
0McNamara, Wednesday, 4 November
Overcast. High 55°, low 36°.
0McNamara, Thursday, 5 November
Overcast. High 56°, low 37°.
0McNamara, Friday, 6 November
Partly cloudy. High 60°, low 39°.
0.09
McNamara, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06McNamara, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06McNamara, Monday, 9 November
Climate normal for this date — 60-year average.
0.04McNamara, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06McNamara, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06McNamara, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07McNamara, Friday, 13 November
Climate normal for this date — 60-year average.
0.06McNamara, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02McNamara, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07McNamara, Monday, 16 November
Climate normal for this date — 60-year average.
0.06McNamara, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07McNamara, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06McNamara, Thursday, 19 November
Climate normal for this date — 60-year average.
0.06McNamara, Friday, 20 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 McNamara, 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 McNamara, 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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