Monthly outlook for McNamara, MT: average high 48.1°, average low 34.8°. That is 2.7° above the climate normal for November. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 6 days and 1.0 inches. The warmest day looks like 11 November (59.5°), the coolest 7 November (29°).
48.1°/34.8°
Average high / low
+2.7°
Above normal
5 / 6
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
1 November – 10 November
47°
44.3°
+1.5°
11 November – 20 November
50°
40.2°
+5.4°
21 November – 30 November
at normal
34.7°
—
November records over 66 years
64.6°5 November 2020All-time high
-19.8°22 November 1970All-time low
Climate normals and records are computed from the nearest reference point — Potomac (5 mi).
Mon, 0239° / 35°0
39 °
McNamara, Monday, 2 November
Overcast. High 39°, low 35°.
Pressure30.33 inHg
Wind3.3 mph SW
Humidity78%
Visibility5.5 mi
Dew point31°
Tue, 0346° / 32°0
46 °
McNamara, Tuesday, 3 November
Overcast. High 46°, low 32°.
Pressure30.18 inHg
Wind1.6 mph SE
Humidity65%
Visibility6.2 mi
Dew point27°
Wed, 0448° / 35°0
48 °
McNamara, Wednesday, 4 November
Partly cloudy. High 48°, low 35°.
Pressure30.06 inHg
Wind2.2 mph SE
Humidity58%
Visibility6.2 mi
Dew point27°
Thu, 0540° / 29°0.03
40 °
McNamara, Thursday, 5 November
Snow. High 40°, low 29°.
Pressure30.18 inHg
Wind7 mph SW
Humidity82%
Visibility6.2 mi
Dew point32°
Fri, 0641° / 29°0.06
41 °
McNamara, Friday, 6 November
Snow. High 41°, low 29°.
Pressure30.12 inHg
Wind14.4 mph W
Humidity67%
Visibility—
Dew point30°
Sat, 0748° / 29°0
48 °
McNamara, Saturday, 7 November
Overcast. High 48°, low 29°.
Pressure30.18 inHg
Wind9 mph W
Humidity45%
Visibility—
Dew point25°
Sun, 0859° / 39°0.01
59 °
McNamara, Sunday, 8 November
Light rain. High 59°, low 39°.
Pressure29.94 inHg
Wind10.2 mph W
Humidity55%
Visibility—
Dew point36°
Mon, 0953° / 37°0
53 °
McNamara, Monday, 9 November
Overcast. High 53°, low 37°.
Pressure30.15 inHg
Wind4.1 mph W
Humidity70%
Visibility—
Dew point35°
Tue, 1055° / 39°0
55 °
McNamara, Tuesday, 10 November
Overcast. High 55°, low 39°.
Pressure30.00 inHg
Wind2 mph E
Humidity59%
Visibility—
Dew point35°
Wed, 1159° / 42°0
59 °
McNamara, Wednesday, 11 November
Overcast. High 59°, low 42°.
Pressure29.97 inHg
Wind5.2 mph SW
Humidity57%
Visibility—
Dew point38°
Thu, 1258° / 40°0
58 °
McNamara, Thursday, 12 November
Overcast. High 58°, low 40°.
Pressure29.65 inHg
Wind5 mph E
Humidity56%
Visibility—
Dew point37°
Fri, 1343° / 35°0.13
43 °
McNamara, Friday, 13 November
Snow. High 43°, low 35°.
Pressure29.50 inHg
Wind16.8 mph W
Humidity68%
Visibility—
Dew point33°
Sat, 1446° / 30°0
46 °
McNamara, Saturday, 14 November
Mostly clear. High 46°, low 30°.
Pressure29.91 inHg
Wind6.7 mph SW
Humidity54%
Visibility—
Dew point26°
Sun, 1551° / 37°0.12
51 °
McNamara, Sunday, 15 November
Light rain. High 51°, low 37°.
Pressure29.74 inHg
Wind6.5 mph W
Humidity82%
Visibility—
Dew point37°
Mon, 1642° / 33°0.19
42 °
McNamara, Monday, 16 November
Snow. High 42°, low 33°.
Pressure29.65 inHg
Wind10.5 mph W
Humidity74%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1740° / 26°0.06
40 °
McNamara, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.06 in
Chance of precipitation43%
Record high55° (1976)
Record low-2° (1968)
Wed, 1839° / 24°0.07
39 °
McNamara, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.07 in
Chance of precipitation47%
Record high56° (2008)
Record low2° (1994)
Thu, 1938° / 24°0.06
38 °
McNamara, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.06 in
Chance of precipitation28%
Record high51° (1989)
Record low-2° (1978)
Fri, 2038° / 24°0.06
38 °
McNamara, Friday, 20 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.06 in
Chance of precipitation38%
Record high52° (1989)
Record low-5° (1977)
Sat, 2137° / 22°0.05
37 °
McNamara, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.05 in
Chance of precipitation35%
Record high51° (2002)
Record low-5° (1977)
Sun, 2236° / 21°0.06
36 °
McNamara, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.06 in
Chance of precipitation38%
Record high54° (2021)
Record low-20° (1970)
Mon, 2336° / 21°0.05
36 °
McNamara, Monday, 23 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.05 in
Chance of precipitation37%
Record high57° (2017)
Record low-15° (1993)
Tue, 2435° / 23°0.11
35 °
McNamara, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.11 in
Chance of precipitation48%
Record high46° (1976)
Record low-6° (1985)
Wed, 2535° / 21°0.12
35 °
McNamara, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.12 in
Chance of precipitation48%
Record high48° (2022)
Record low-7° (2010)
Thu, 2634° / 20°0.07
34 °
McNamara, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.07 in
Chance of precipitation35%
Record high52° (2017)
Record low-3° (1985)
Fri, 2734° / 20°0.06
34 °
McNamara, Friday, 27 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.06 in
Chance of precipitation48%
Record high50° (2021)
Record low-6° (1967)
Sat, 2834° / 20°0.07
34 °
McNamara, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.07 in
Chance of precipitation37%
Record high58° (2021)
Record low-2° (1975)
Sun, 2933° / 19°0.05
33 °
McNamara, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high33°
Average low19°
Average precipitation0.05 in
Chance of precipitation35%
Record high51° (2021)
Record low-4° (1985)
Mon, 3033° / 19°0.05
33 °
McNamara, Monday, 30 November
Climate normal for this date — 60-year average.
Average high33°
Average low19°
Average precipitation0.05 in
Chance of precipitation30%
Record high47° (2021)
Record low-14° (1985)
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.