Weather in McNamara, MT
McNamara, Thursday, 22 October, 14:32
Clear. Feels like 66°. High 67°, low 37°.
Monthly outlook for McNamara, MT: average high 47.6°, average low 28.9°. That is 0.4° below the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 22 October (67.3°), the coolest 30 October (20.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 46.2° | 49.8° | -2° |
| 1 November – 10 November | 49.8° | 44.3° | +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).
0.48
McNamara, Friday, 23 October
Rain. High 44°, low 35°.
0.05McNamara, Saturday, 24 October
Light rain. High 50°, low 29°.
0
McNamara, Sunday, 25 October
Partly cloudy. High 48°, low 33°.
0
McNamara, Monday, 26 October
Overcast. High 49°, low 32°.
0.23
McNamara, Tuesday, 27 October
Snow. High 40°, low 34°.
0.3McNamara, Wednesday, 28 October
Snow. High 36°, low 32°.
0.1McNamara, Thursday, 29 October
Light snow. High 40°, low 27°.
0McNamara, Friday, 30 October
Partly cloudy. High 43°, low 21°.
0
McNamara, Saturday, 31 October
Mostly clear. High 46°, low 21°.
0McNamara, Sunday, 1 November
Partly cloudy. High 48°, low 23°.
0McNamara, Monday, 2 November
Partly cloudy. High 48°, low 25°.
0McNamara, Tuesday, 3 November
Mostly clear. High 47°, low 27°.
0McNamara, Wednesday, 4 November
Clear. High 50°, low 28°.
0McNamara, Thursday, 5 November
Clear. High 52°, low 29°.
0McNamara, Friday, 6 November
Partly cloudy. High 54°, low 32°.
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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