Weather in McNamara, MT
McNamara, Tuesday, 27 October, 16:48
Overcast. Feels like 44°. High 48°, low 37°.
Monthly outlook for McNamara, MT: average high 48.9°, average low 34.9°. That is 2° above the climate normal for October. Precipitation is expected on 6 days (about 0.8 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 4 November (57.5°), the coolest 2 November (27.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 47.1° | 46.9° | +0.1° |
| 6 November – 15 November | 51.9° | 42.1° | +5.4° |
| 16 November – 25 November | at normal | 37.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Potomac (5 mi).
0.19
McNamara, Wednesday, 28 October
Snow. High 38°, low 31°.
0.01McNamara, Thursday, 29 October
Light snow. High 43°, low 30°.
0.01
McNamara, Friday, 30 October
Light rain. High 45°, low 31°.
0.02McNamara, Saturday, 31 October
Light rain. High 47°, low 33°.
0.14McNamara, Sunday, 1 November
Light rain. High 42°, low 30°.
0
McNamara, Monday, 2 November
Partly cloudy. High 44°, low 28°.
0McNamara, Tuesday, 3 November
Overcast. High 52°, low 29°.
0McNamara, Wednesday, 4 November
Overcast. High 58°, low 33°.
0McNamara, Thursday, 5 November
Overcast. High 56°, low 36°.
0McNamara, Friday, 6 November
Overcast. High 57°, low 36°.
0McNamara, Saturday, 7 November
Overcast. High 57°, low 41°.
0McNamara, Sunday, 8 November
Overcast. High 52°, low 43°.
0.07McNamara, Monday, 9 November
Light rain. High 47°, low 38°.
0.07McNamara, Tuesday, 10 November
Light rain. High 44°, low 39°.
0.14McNamara, Wednesday, 11 November
Light rain. High 55°, low 44°.
0.06
McNamara, 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.
0.02
McNamara, 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.
0.05McNamara, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06McNamara, Sunday, 22 November
Climate normal for this date — 60-year average.
0.05McNamara, Monday, 23 November
Climate normal for this date — 60-year average.
0.11McNamara, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.12McNamara, Wednesday, 25 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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