Monthly outlook for Sierra, CO: average high 57.1°, average low 39°. That is 2.1° above the climate normal for October. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 11 October (69.3°), the coolest 17 October (31.6°).
57.1°/39°
Average high / low
+2.1°
Above normal
6 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
55.2°
54.6°
+0.3°
21 October – 30 October
60.2°
49.9°
+5.7°
31 October – 9 November
at normal
45.1°
—
October records over 66 years
72.5°1 October 2010All-time high
-12.6°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Muleshoe (7 mi).
Mon, 1264° / 43°0.1
64 °
Sierra, Monday, 12 October
Rain. High 64°, low 43°.
Pressure29.97 inHg
Wind13.8 mph SW
Humidity55%
Visibility6.2 mi
Dew point37°
Tue, 1355° / 39°0.05
55 °
Sierra, Tuesday, 13 October
Light rain. High 55°, low 39°.
Pressure29.94 inHg
Wind13.7 mph SW
Humidity53%
Visibility6.2 mi
Dew point34°
Wed, 1444° / 38°0.3
44 °
Sierra, Wednesday, 14 October
Snow. High 44°, low 38°.
Pressure30.09 inHg
Wind5.8 mph E
Humidity84%
Visibility0.2 mi
Dew point39°
Thu, 1542° / 37°0.07
42 °
Sierra, Thursday, 15 October
Light rain. High 42°, low 37°.
Pressure30.24 inHg
Wind8.7 mph NE
Humidity86%
Visibility—
Dew point37°
Fri, 1645° / 33°0.17
45 °
Sierra, Friday, 16 October
Snow. High 45°, low 33°.
Pressure30.56 inHg
Wind9 mph NE
Humidity81%
Visibility—
Dew point33°
Sat, 1753° / 32°0
53 °
Sierra, Saturday, 17 October
Clear. High 53°, low 32°.
Pressure30.42 inHg
Wind11 mph SW
Humidity46%
Visibility—
Dew point27°
Sun, 1858° / 34°0
58 °
Sierra, Sunday, 18 October
Clear. High 58°, low 34°.
Pressure30.24 inHg
Wind9.1 mph SW
Humidity36%
Visibility—
Dew point25°
Mon, 1962° / 37°0
62 °
Sierra, Monday, 19 October
Clear. High 62°, low 37°.
Pressure30.18 inHg
Wind6.1 mph SW
Humidity19%
Visibility—
Dew point15°
Tue, 2059° / 37°0
59 °
Sierra, Tuesday, 20 October
Clear. High 59°, low 37°.
Pressure30.09 inHg
Wind8.1 mph SW
Humidity25%
Visibility—
Dew point18°
Wed, 2162° / 39°0
62 °
Sierra, Wednesday, 21 October
Clear. High 62°, low 39°.
Pressure30.09 inHg
Wind2.6 mph SW
Humidity20%
Visibility—
Dew point17°
Thu, 2262° / 41°0
62 °
Sierra, Thursday, 22 October
Clear. High 62°, low 41°.
Pressure30.18 inHg
Wind7.7 mph W
Humidity24%
Visibility—
Dew point20°
Fri, 2362° / 41°0
62 °
Sierra, Friday, 23 October
Clear. High 62°, low 41°.
Pressure30.18 inHg
Wind8 mph W
Humidity17%
Visibility—
Dew point12°
Sat, 2460° / 40°0
60 °
Sierra, Saturday, 24 October
Clear. High 60°, low 40°.
Pressure30.12 inHg
Wind9.6 mph SW
Humidity24%
Visibility—
Dew point19°
Sun, 2559° / 40°0
59 °
Sierra, Sunday, 25 October
Mostly clear. High 59°, low 40°.
Pressure30.06 inHg
Wind10 mph W
Humidity31%
Visibility—
Dew point25°
Mon, 2657° / 40°0
57 °
Sierra, Monday, 26 October
Overcast. High 57°, low 40°.
Pressure30.03 inHg
Wind10.4 mph SW
Humidity43%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2749° / 27°0.04
49 °
Sierra, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high67° (2016)
Record low3° (1993)
Wed, 2849° / 27°0.03
49 °
Sierra, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low27°
Average precipitation0.03 in
Chance of precipitation12%
Record high65° (2016)
Record low-2° (1976)
Thu, 2948° / 26°0.05
48 °
Sierra, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low26°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (1968)
Record low2° (2019)
Fri, 3046° / 25°0.05
46 °
Sierra, Friday, 30 October
Climate normal for this date — 60-year average.
Average high46°
Average low25°
Average precipitation0.05 in
Chance of precipitation23%
Record high63° (2016)
Record low-13° (1993)
Sat, 3146° / 25°0.06
46 °
Sierra, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high46°
Average low25°
Average precipitation0.06 in
Chance of precipitation17%
Record high61° (2016)
Record low0° (1979)
Sun, 0144° / 25°0.05
44 °
Sierra, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.05 in
Chance of precipitation23%
Record high58° (2008)
Record low-3° (1991)
Mon, 0245° / 24°0.05
45 °
Sierra, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low24°
Average precipitation0.05 in
Chance of precipitation27%
Record high61° (2025)
Record low1° (1979)
Tue, 0344° / 23°0.03
44 °
Sierra, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high44°
Average low23°
Average precipitation0.03 in
Chance of precipitation15%
Record high60° (2025)
Record low-12° (1991)
Wed, 0445° / 24°0.03
45 °
Sierra, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low24°
Average precipitation0.03 in
Chance of precipitation13%
Record high59° (1983)
Record low-1° (1970)
Thu, 0546° / 24°0.01
46 °
Sierra, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low24°
Average precipitation0.01 in
Chance of precipitation10%
Record high58° (2021)
Record low7° (1986)
Fri, 0646° / 25°0.03
46 °
Sierra, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low25°
Average precipitation0.03 in
Chance of precipitation10%
Record high60° (2010)
Record low-6° (1961)
Sat, 0746° / 24°0.04
46 °
Sierra, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low24°
Average precipitation0.04 in
Chance of precipitation15%
Record high59° (2012)
Record low4° (1972)
Sun, 0846° / 25°0.06
46 °
Sierra, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low25°
Average precipitation0.06 in
Chance of precipitation20%
Record high61° (2006)
Record low-1° (1993)
Mon, 0944° / 24°0.05
44 °
Sierra, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low24°
Average precipitation0.05 in
Chance of precipitation23%
Record high62° (1980)
Record low-9° (1977)
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 Sierra, CO 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 Sierra, CO 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.