Monthly outlook for Semper, CO: average high 67.9°, average low 48.4°. That is 2.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 9 October (83.3°), the coolest 16 October (35°).
67.9°/48.4°
Average high / low
+2.7°
Above normal
4 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
71.6°
63.9°
+4.3°
17 October – 26 October
61.8°
60.6°
+0.7°
27 October – 5 November
at normal
53.5°
—
October records over 66 years
88.9°3 October 2025All-time high
-7.6°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Shaw Heights (1 mi).
Thu, 0882° / 52°0
82 °
Semper, Thursday, 8 October
Clear. High 82°, low 52°.
Pressure29.94 inHg
Wind5.3 mph E
Humidity16%
Visibility6.2 mi
Dew point26°
Fri, 0983° / 52°0
83 °
Semper, Friday, 9 October
Clear. High 83°, low 52°.
Pressure29.74 inHg
Wind5 mph E
Humidity16%
Visibility6.2 mi
Dew point29°
Sat, 1081° / 54°0.01
81 °
Semper, Saturday, 10 October
Light rain. High 81°, low 54°.
Pressure29.62 inHg
Wind4.8 mph SE
Humidity18%
Visibility6.2 mi
Dew point32°
Sun, 1177° / 58°0.02
77 °
Semper, Sunday, 11 October
Light rain. High 77°, low 58°.
Pressure29.71 inHg
Wind4.5 mph E
Humidity31%
Visibility6.2 mi
Dew point40°
Mon, 1279° / 51°0
79 °
Semper, Monday, 12 October
Clear. High 79°, low 51°.
Pressure29.77 inHg
Wind10.8 mph NE
Humidity41%
Visibility—
Dew point43°
Tue, 1374° / 55°0
74 °
Semper, Tuesday, 13 October
Overcast. High 74°, low 55°.
Pressure29.85 inHg
Wind9 mph SW
Humidity44%
Visibility—
Dew point42°
Wed, 1468° / 52°0.16
68 °
Semper, Wednesday, 14 October
Light rain. High 68°, low 52°.
Pressure29.47 inHg
Wind14 mph N
Humidity41%
Visibility—
Dew point42°
Thu, 1553° / 37°0.14
53 °
Semper, Thursday, 15 October
Snow. High 53°, low 37°.
Pressure29.97 inHg
Wind11.7 mph NE
Humidity72%
Visibility—
Dew point40°
Fri, 1640° / 35°0.28
40 °
Semper, Friday, 16 October
Snow. High 40°, low 35°.
Pressure30.56 inHg
Wind5.7 mph NE
Humidity97%
Visibility—
Dew point35°
Sat, 1757° / 39°0
57 °
Semper, Saturday, 17 October
Mostly clear. High 57°, low 39°.
Pressure30.15 inHg
Wind9.2 mph N
Humidity65%
Visibility—
Dew point37°
Sun, 1864° / 45°0
64 °
Semper, Sunday, 18 October
Light rain. High 64°, low 45°.
Pressure29.88 inHg
Wind12.5 mph N
Humidity50%
Visibility—
Dew point36°
Mon, 1969° / 49°0
69 °
Semper, Monday, 19 October
Clear. High 69°, low 49°.
Pressure29.97 inHg
Wind5.4 mph NW
Humidity18%
Visibility—
Dew point18°
Tue, 2063° / 52°0
63 °
Semper, Tuesday, 20 October
Overcast. High 63°, low 52°.
Pressure30.18 inHg
Wind6.1 mph N
Humidity32%
Visibility—
Dew point28°
Wed, 2159° / 51°0
59 °
Semper, Wednesday, 21 October
Overcast. High 59°, low 51°.
Pressure30.24 inHg
Wind8.7 mph N
Humidity31%
Visibility—
Dew point25°
Thu, 2258° / 37°0.3
58 °
Semper, Thursday, 22 October
Snow. High 58°, low 37°.
Pressure30.00 inHg
Wind14.9 mph NE
Humidity24%
Visibility—
Dew point20°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2360° / 35°0.03
60 °
Semper, Friday, 23 October
Climate normal for this date — 60-year average.
Average high60°
Average low35°
Average precipitation0.03 in
Chance of precipitation20%
Record high79° (2003)
Record low20° (2020)
Sat, 2459° / 34°0.04
59 °
Semper, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high59°
Average low34°
Average precipitation0.04 in
Chance of precipitation20%
Record high77° (2014)
Record low19° (1984)
Sun, 2560° / 33°0.06
60 °
Semper, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high60°
Average low33°
Average precipitation0.06 in
Chance of precipitation15%
Record high80° (2017)
Record low1° (1975)
Mon, 2658° / 33°0.07
58 °
Semper, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low33°
Average precipitation0.07 in
Chance of precipitation20%
Record high74° (1977)
Record low2° (2020)
Tue, 2756° / 32°0.04
56 °
Semper, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low32°
Average precipitation0.04 in
Chance of precipitation20%
Record high79° (2016)
Record low-6° (2020)
Wed, 2857° / 31°0.05
57 °
Semper, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low31°
Average precipitation0.05 in
Chance of precipitation15%
Record high80° (2024)
Record low5° (2011)
Thu, 2956° / 30°0.07
56 °
Semper, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low30°
Average precipitation0.07 in
Chance of precipitation28%
Record high79° (2018)
Record low5° (1993)
Fri, 3053° / 29°0.06
53 °
Semper, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low29°
Average precipitation0.06 in
Chance of precipitation28%
Record high74° (1968)
Record low-8° (1993)
Sat, 3152° / 29°0.05
52 °
Semper, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low29°
Average precipitation0.05 in
Chance of precipitation27%
Record high74° (2016)
Record low1° (2019)
Sun, 0151° / 29°0.07
51 °
Semper, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low29°
Average precipitation0.07 in
Chance of precipitation25%
Record high71° (1988)
Record low5° (1979)
Mon, 0251° / 27°0.07
51 °
Semper, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low27°
Average precipitation0.07 in
Chance of precipitation23%
Record high81° (2025)
Record low2° (1991)
Tue, 0351° / 26°0.06
51 °
Semper, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low26°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (2020)
Record low-12° (1991)
Wed, 0453° / 27°0.02
53 °
Semper, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low27°
Average precipitation0.02 in
Chance of precipitation18%
Record high74° (2020)
Record low1° (2002)
Thu, 0553° / 28°0.03
53 °
Semper, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low28°
Average precipitation0.03 in
Chance of precipitation15%
Record high73° (2023)
Record low0° (1967)
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 Semper, 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 Semper, 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.