Monthly outlook for Shamrock, CO: average high 63.9°, average low 43.9°. That is 0.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 17 October (74.6°), the coolest 16 October (31°).
63.9°/43.9°
Average high / low
+0.7°
Above normal
2 / 2
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
64.2°
63.9°
+0.2°
24 October – 2 November
63.4°
58.2°
+2.9°
3 November – 12 November
at normal
55°
—
October records over 66 years
86.4°3 October 2025All-time high
-1.3°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Cabin Creek (15 mi).
Thu, 1555° / 42°0.16
55 °
Shamrock, Thursday, 15 October
Light rain. High 55°, low 42°.
Pressure30.45 inHg
Wind21.9 mph NW
Humidity84%
Visibility6.2 mi
Dew point41°
Fri, 1652° / 31°0
52 °
Shamrock, Friday, 16 October
Clear. High 52°, low 31°.
Pressure30.77 inHg
Wind5.9 mph N
Humidity42%
Visibility6.2 mi
Dew point6°
Sat, 1775° / 38°0
75 °
Shamrock, Saturday, 17 October
Clear. High 75°, low 38°.
Pressure30.21 inHg
Wind1.2 mph S
Humidity27%
Visibility6.2 mi
Dew point26°
Sun, 1870° / 43°0
70 °
Shamrock, Sunday, 18 October
Partly cloudy. High 70°, low 43°.
Pressure30.03 inHg
Wind4.1 mph NE
Humidity24%
Visibility6.2 mi
Dew point25°
Mon, 1969° / 46°0
69 °
Shamrock, Monday, 19 October
Light rain. High 69°, low 46°.
Pressure29.97 inHg
Wind7.9 mph SE
Humidity34%
Visibility—
Dew point33°
Tue, 2072° / 50°0
72 °
Shamrock, Tuesday, 20 October
Clear. High 72°, low 50°.
Pressure29.94 inHg
Wind10.3 mph S
Humidity27%
Visibility—
Dew point29°
Wed, 2171° / 55°0
71 °
Shamrock, Wednesday, 21 October
Overcast. High 71°, low 55°.
Pressure29.94 inHg
Wind9.4 mph NW
Humidity32%
Visibility—
Dew point35°
Thu, 2265° / 52°0
65 °
Shamrock, Thursday, 22 October
Overcast. High 65°, low 52°.
Pressure30.03 inHg
Wind17.9 mph SE
Humidity50%
Visibility—
Dew point42°
Fri, 2361° / 45°0.02
61 °
Shamrock, Friday, 23 October
Light rain. High 61°, low 45°.
Pressure29.80 inHg
Wind23.9 mph N
Humidity56%
Visibility—
Dew point39°
Sat, 2455° / 40°0
55 °
Shamrock, Saturday, 24 October
Clear. High 55°, low 40°.
Pressure30.45 inHg
Wind18.9 mph N
Humidity31%
Visibility—
Dew point20°
Sun, 2569° / 43°0
69 °
Shamrock, Sunday, 25 October
Clear. High 69°, low 43°.
Pressure30.27 inHg
Wind17.6 mph S
Humidity15%
Visibility—
Dew point15°
Mon, 2663° / 45°0
63 °
Shamrock, Monday, 26 October
Overcast. High 63°, low 45°.
Pressure30.12 inHg
Wind7.9 mph NW
Humidity22%
Visibility—
Dew point18°
Tue, 2768° / 45°0
68 °
Shamrock, Tuesday, 27 October
Partly cloudy. High 68°, low 45°.
Pressure29.74 inHg
Wind19.3 mph N
Humidity20%
Visibility—
Dew point19°
Wed, 2854° / 38°0
54 °
Shamrock, Wednesday, 28 October
Clear. High 54°, low 38°.
Pressure30.09 inHg
Wind15.4 mph N
Humidity50%
Visibility—
Dew point29°
Thu, 2971° / 43°0
71 °
Shamrock, Thursday, 29 October
Clear. High 71°, low 43°.
Pressure29.97 inHg
Wind9.7 mph S
Humidity25%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3056° / 35°0.05
56 °
Shamrock, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high80° (1968)
Record low2° (2019)
Sat, 3155° / 34°0.03
55 °
Shamrock, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low34°
Average precipitation0.03 in
Chance of precipitation20%
Record high78° (2016)
Record low0° (2019)
Sun, 0154° / 33°0.07
54 °
Shamrock, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.07 in
Chance of precipitation23%
Record high75° (2014)
Record low8° (1991)
Mon, 0253° / 32°0.04
53 °
Shamrock, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low32°
Average precipitation0.04 in
Chance of precipitation15%
Record high80° (2025)
Record low-6° (1991)
Tue, 0354° / 32°0.03
54 °
Shamrock, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low32°
Average precipitation0.03 in
Chance of precipitation18%
Record high74° (2015)
Record low-10° (1991)
Wed, 0455° / 32°0.01
55 °
Shamrock, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low32°
Average precipitation0.01 in
Chance of precipitation7%
Record high74° (1999)
Record low9° (1991)
Thu, 0556° / 33°0.02
56 °
Shamrock, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low33°
Average precipitation0.02 in
Chance of precipitation18%
Record high75° (2023)
Record low6° (1967)
Fri, 0657° / 34°0.02
57 °
Shamrock, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low34°
Average precipitation0.02 in
Chance of precipitation7%
Record high80° (2020)
Record low17° (2002)
Sat, 0758° / 35°0.02
58 °
Shamrock, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low35°
Average precipitation0.02 in
Chance of precipitation13%
Record high77° (1999)
Record low15° (1990)
Sun, 0857° / 34°0.05
57 °
Shamrock, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high57°
Average low34°
Average precipitation0.05 in
Chance of precipitation20%
Record high75° (2006)
Record low16° (2018)
Mon, 0954° / 32°0.05
54 °
Shamrock, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low32°
Average precipitation0.05 in
Chance of precipitation18%
Record high72° (2014)
Record low11° (1960)
Tue, 1054° / 30°0.03
54 °
Shamrock, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low30°
Average precipitation0.03 in
Chance of precipitation17%
Record high71° (1999)
Record low10° (1986)
Wed, 1152° / 29°0.03
52 °
Shamrock, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (2005)
Record low14° (2014)
Thu, 1253° / 30°0.04
53 °
Shamrock, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high53°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high75° (1989)
Record low4° (2000)
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 Shamrock, 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 Shamrock, 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.