Monthly outlook for Portales, NM: average high 56.2°, average low 42.8°. That is 1.7° below the climate normal for November. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 20 November (69.4°), the coolest 29 November (35.6°).
56.2°/42.8°
Average high / low
−1.7°
Below normal
3 / 2
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
59.4°
61°
-0.9°
24 November – 3 December
50.9°
56.3°
-3°
4 December – 13 December
at normal
54.8°
—
November records over 66 years
84°4 November 2025All-time high
3.6°29 November 1976All-time low
Climate normals and records are computed from the nearest reference point — Arch (13 mi).
Sun, 1552° / 41°0.01
52 °
Portales, Sunday, 15 November
Light rain. High 52°, low 41°.
Pressure30.18 inHg
Wind9.1 mph NE
Humidity72%
Visibility6.2 mi
Dew point42°
Mon, 1653° / 43°0
53 °
Portales, Monday, 16 November
Overcast. High 53°, low 43°.
Pressure30.30 inHg
Wind6.5 mph SW
Humidity63%
Visibility6.2 mi
Dew point39°
Tue, 1753° / 43°0
53 °
Portales, Tuesday, 17 November
Overcast. High 53°, low 43°.
Pressure30.21 inHg
Wind12.3 mph S
Humidity69%
Visibility6.2 mi
Dew point41°
Wed, 1863° / 47°0
63 °
Portales, Wednesday, 18 November
Overcast. High 63°, low 47°.
Pressure30.06 inHg
Wind13.5 mph SW
Humidity67%
Visibility—
Dew point44°
Thu, 1962° / 44°0
62 °
Portales, Thursday, 19 November
Overcast. High 62°, low 44°.
Pressure30.12 inHg
Wind15.1 mph S
Humidity72%
Visibility—
Dew point47°
Fri, 2069° / 56°0
69 °
Portales, Friday, 20 November
Overcast. High 69°, low 56°.
Pressure29.97 inHg
Wind22.9 mph S
Humidity64%
Visibility—
Dew point51°
Sat, 2160° / 44°0
60 °
Portales, Saturday, 21 November
Clear. High 60°, low 44°.
Pressure30.15 inHg
Wind14.1 mph NW
Humidity16%
Visibility—
Dew point12°
Sun, 2259° / 40°0
59 °
Portales, Sunday, 22 November
Overcast. High 59°, low 40°.
Pressure30.30 inHg
Wind14.5 mph S
Humidity36%
Visibility—
Dew point26°
Mon, 2364° / 43°0
64 °
Portales, Monday, 23 November
Clear. High 64°, low 43°.
Pressure30.09 inHg
Wind11.5 mph W
Humidity37%
Visibility—
Dew point33°
Tue, 2459° / 51°0.31
59 °
Portales, Tuesday, 24 November
Rain. High 59°, low 51°.
Pressure29.97 inHg
Wind13.6 mph S
Humidity86%
Visibility—
Dew point51°
Wed, 2548° / 40°0.04
48 °
Portales, Wednesday, 25 November
Light rain. High 48°, low 40°.
Pressure30.21 inHg
Wind23.1 mph N
Humidity67%
Visibility—
Dew point34°
Thu, 2643° / 39°0
43 °
Portales, Thursday, 26 November
Overcast. High 43°, low 39°.
Pressure30.27 inHg
Wind13.2 mph SE
Humidity81%
Visibility—
Dew point36°
Fri, 2751° / 38°0.02
51 °
Portales, Friday, 27 November
Light rain. High 51°, low 38°.
Pressure29.94 inHg
Wind16.9 mph SW
Humidity72%
Visibility—
Dew point35°
Sat, 2852° / 37°0
52 °
Portales, Saturday, 28 November
Light rain. High 52°, low 37°.
Pressure29.68 inHg
Wind12.1 mph NW
Humidity55%
Visibility—
Dew point34°
Sun, 2953° / 36°0
53 °
Portales, Sunday, 29 November
Clear. High 53°, low 36°.
Pressure30.00 inHg
Wind9.3 mph NW
Humidity49%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3055° / 34°0.01
55 °
Portales, Monday, 30 November
Climate normal for this date — 60-year average.
Average high55°
Average low34°
Average precipitation0.01 in
Chance of precipitation8%
Record high74° (1970)
Record low20° (1976)
Tue, 0156° / 34°0.02
56 °
Portales, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high56°
Average low34°
Average precipitation0.02 in
Chance of precipitation10%
Record high74° (2012)
Record low22° (1974)
Wed, 0257° / 35°0.02
57 °
Portales, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high57°
Average low35°
Average precipitation0.02 in
Chance of precipitation10%
Record high75° (2008)
Record low18° (1985)
Thu, 0356° / 35°0.03
56 °
Portales, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high56°
Average low35°
Average precipitation0.03 in
Chance of precipitation12%
Record high73° (1977)
Record low16° (1971)
Fri, 0456° / 34°0.03
56 °
Portales, Friday, 4 December
Climate normal for this date — 60-year average.
Average high56°
Average low34°
Average precipitation0.03 in
Chance of precipitation13%
Record high74° (2007)
Record low19° (2009)
Sat, 0556° / 35°0.02
56 °
Portales, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high56°
Average low35°
Average precipitation0.02 in
Chance of precipitation12%
Record high73° (1987)
Record low19° (1999)
Sun, 0653° / 33°0.01
53 °
Portales, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high53°
Average low33°
Average precipitation0.01 in
Chance of precipitation8%
Record high71° (1966)
Record low7° (2011)
Mon, 0755° / 33°0.01
55 °
Portales, Monday, 7 December
Climate normal for this date — 60-year average.
Average high55°
Average low33°
Average precipitation0.01 in
Chance of precipitation8%
Record high73° (2007)
Record low12° (2013)
Tue, 0856° / 34°0.02
56 °
Portales, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high56°
Average low34°
Average precipitation0.02 in
Chance of precipitation17%
Record high73° (1970)
Record low3° (1978)
Wed, 0954° / 33°0.02
54 °
Portales, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.02 in
Chance of precipitation8%
Record high73° (1996)
Record low-4° (1978)
Thu, 1053° / 32°0.02
53 °
Portales, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high53°
Average low32°
Average precipitation0.02 in
Chance of precipitation10%
Record high71° (1975)
Record low6° (1978)
Fri, 1154° / 33°0.03
54 °
Portales, Friday, 11 December
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.03 in
Chance of precipitation12%
Record high76° (2025)
Record low17° (1978)
Sat, 1255° / 33°0.01
55 °
Portales, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high55°
Average low33°
Average precipitation0.01 in
Chance of precipitation5%
Record high74° (1995)
Record low17° (1986)
Sun, 1355° / 34°0.04
55 °
Portales, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high55°
Average low34°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2025)
Record low16° (1986)
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 Portales, NM 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 Portales, NM 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.