Monthly outlook for Summerville, CO: average high 54.2°, average low 33.7°. That is 5.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (67.1°), the coolest 25 October (24.4°).
54.2°/33.7°
Average high / low
+5.8°
Above normal
3 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
55.7°
45.7°
+5.6°
27 October – 5 November
51.7°
39.7°
+6.7°
6 November – 15 November
at normal
36.8°
—
October records over 66 years
67.5°5 October 1997All-time high
-15.3°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Ward (6 mi).
Sun, 1864° / 29°0
64 °
Summerville, Sunday, 18 October
Mostly clear. High 64°, low 29°.
Pressure30.03 inHg
Wind5.7 mph E
Humidity29%
Visibility6.2 mi
Dew point21°
Mon, 1955° / 33°0
55 °
Summerville, Monday, 19 October
Partly cloudy. High 55°, low 33°.
Pressure30.12 inHg
Wind5.3 mph E
Humidity47%
Visibility6.2 mi
Dew point31°
Tue, 2057° / 36°0.03
57 °
Summerville, Tuesday, 20 October
Light rain. High 57°, low 36°.
Pressure30.03 inHg
Wind4.4 mph E
Humidity40%
Visibility6.2 mi
Dew point34°
Wed, 2159° / 36°0
59 °
Summerville, Wednesday, 21 October
Clear. High 59°, low 36°.
Pressure30.15 inHg
Wind4.6 mph E
Humidity38%
Visibility6.2 mi
Dew point33°
Thu, 2256° / 44°0.12
56 °
Summerville, Thursday, 22 October
Light rain. High 56°, low 44°.
Pressure30.03 inHg
Wind6.8 mph W
Humidity51%
Visibility—
Dew point37°
Fri, 2363° / 40°0.01
63 °
Summerville, Friday, 23 October
Light rain. High 63°, low 40°.
Pressure29.68 inHg
Wind10 mph W
Humidity39%
Visibility—
Dew point32°
Sat, 2438° / 29°0.11
38 °
Summerville, Saturday, 24 October
Snow. High 38°, low 29°.
Pressure30.36 inHg
Wind8.9 mph W
Humidity85%
Visibility—
Dew point31°
Sun, 2544° / 24°0
44 °
Summerville, Sunday, 25 October
Overcast. High 44°, low 24°.
Pressure30.42 inHg
Wind8 mph W
Humidity56%
Visibility—
Dew point25°
Mon, 2652° / 31°0
52 °
Summerville, Monday, 26 October
Partly cloudy. High 52°, low 31°.
Pressure30.00 inHg
Wind8.1 mph W
Humidity16%
Visibility—
Dew point5°
Tue, 2755° / 36°0
55 °
Summerville, Tuesday, 27 October
Mostly clear. High 55°, low 36°.
Pressure29.88 inHg
Wind14 mph W
Humidity39%
Visibility—
Dew point28°
Wed, 2854° / 38°0
54 °
Summerville, Wednesday, 28 October
Overcast. High 54°, low 38°.
Pressure29.71 inHg
Wind20.6 mph W
Humidity36%
Visibility—
Dew point26°
Thu, 2948° / 34°0
48 °
Summerville, Thursday, 29 October
Overcast. High 48°, low 34°.
Pressure29.94 inHg
Wind14.7 mph W
Humidity33%
Visibility—
Dew point17°
Fri, 3053° / 32°0
53 °
Summerville, Friday, 30 October
Clear. High 53°, low 32°.
Pressure29.77 inHg
Wind11.8 mph W
Humidity20%
Visibility—
Dew point10°
Sat, 3141° / 32°0.05
41 °
Summerville, Saturday, 31 October
Snow. High 41°, low 32°.
Pressure29.65 inHg
Wind30.4 mph W
Humidity48%
Visibility—
Dew point20°
Sun, 0159° / 33°0
59 °
Summerville, Sunday, 1 November
Clear. High 59°, low 33°.
Pressure29.83 inHg
Wind15.8 mph W
Humidity19%
Visibility—
Dew point12°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0238° / 18°0.09
38 °
Summerville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.09 in
Chance of precipitation32%
Record high55° (2008)
Record low-6° (2004)
Tue, 0338° / 18°0.06
38 °
Summerville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.06 in
Chance of precipitation27%
Record high55° (2020)
Record low-11° (1991)
Wed, 0439° / 19°0.04
39 °
Summerville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high39°
Average low19°
Average precipitation0.04 in
Chance of precipitation20%
Record high57° (1983)
Record low-9° (1970)
Thu, 0539° / 19°0.04
39 °
Summerville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high39°
Average low19°
Average precipitation0.04 in
Chance of precipitation25%
Record high57° (1975)
Record low-5° (1961)
Fri, 0639° / 19°0.04
39 °
Summerville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high39°
Average low19°
Average precipitation0.04 in
Chance of precipitation20%
Record high58° (2010)
Record low-5° (1961)
Sat, 0740° / 19°0.02
40 °
Summerville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high40°
Average low19°
Average precipitation0.02 in
Chance of precipitation15%
Record high55° (2012)
Record low-3° (2000)
Sun, 0838° / 19°0.06
38 °
Summerville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high38°
Average low19°
Average precipitation0.06 in
Chance of precipitation30%
Record high55° (1978)
Record low-8° (1993)
Mon, 0938° / 18°0.09
38 °
Summerville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.09 in
Chance of precipitation30%
Record high56° (2016)
Record low-1° (1993)
Tue, 1037° / 17°0.05
37 °
Summerville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high37°
Average low17°
Average precipitation0.05 in
Chance of precipitation30%
Record high56° (1980)
Record low-6° (2000)
Wed, 1135° / 16°0.06
35 °
Summerville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high35°
Average low16°
Average precipitation0.06 in
Chance of precipitation27%
Record high55° (1980)
Record low0° (2014)
Thu, 1236° / 16°0.05
36 °
Summerville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high36°
Average low16°
Average precipitation0.05 in
Chance of precipitation30%
Record high56° (1999)
Record low-10° (2014)
Fri, 1336° / 17°0.05
36 °
Summerville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high36°
Average low17°
Average precipitation0.05 in
Chance of precipitation27%
Record high56° (1999)
Record low-16° (2014)
Sat, 1435° / 16°0.06
35 °
Summerville, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high35°
Average low16°
Average precipitation0.06 in
Chance of precipitation33%
Record high55° (1999)
Record low-12° (1961)
Sun, 1535° / 15°0.04
35 °
Summerville, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high35°
Average low15°
Average precipitation0.04 in
Chance of precipitation20%
Record high57° (1999)
Record low-25° (1997)
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 Summerville, 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 Summerville, 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.