Monthly outlook for Saint Vrains, CO: average high 58.2°, average low 40°. That is 2.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 30 October (66°), the coolest 13 November (34.3°).
58.2°/40°
Average high / low
+2.7°
Above normal
4 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
59.8°
54.1°
+3.1°
8 November – 17 November
55.6°
51.5°
+2.3°
18 November – 27 November
at normal
46.3°
—
October records over 66 years
88.2°3 October 2025All-time high
-5.3°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Thornton (8 mi).
Fri, 3066° / 45°0
66 °
Saint Vrains, Friday, 30 October
Mostly clear. High 66°, low 45°.
Pressure30.03 inHg
Wind2.6 mph NE
Humidity60%
Visibility6.2 mi
Dew point43°
Sat, 3161° / 43°0.03
61 °
Saint Vrains, Saturday, 31 October
Light rain. High 61°, low 43°.
Pressure30.00 inHg
Wind3.9 mph N
Humidity75%
Visibility—
Dew point46°
Sun, 0162° / 42°0
62 °
Saint Vrains, Sunday, 1 November
Overcast. High 62°, low 42°.
Pressure29.94 inHg
Wind1.3 mph E
Humidity60%
Visibility6.2 mi
Dew point43°
Mon, 0261° / 43°0.25
61 °
Saint Vrains, Monday, 2 November
Rain. High 61°, low 43°.
Pressure29.71 inHg
Wind3.1 mph NE
Humidity54%
Visibility6.2 mi
Dew point44°
Tue, 0359° / 39°0.07
59 °
Saint Vrains, Tuesday, 3 November
Light rain. High 59°, low 39°.
Pressure30.18 inHg
Wind6 mph S
Humidity50%
Visibility—
Dew point33°
Wed, 0461° / 35°0
61 °
Saint Vrains, Wednesday, 4 November
Mostly clear. High 61°, low 35°.
Pressure29.97 inHg
Wind4.4 mph NE
Humidity37%
Visibility—
Dew point26°
Thu, 0558° / 41°0
58 °
Saint Vrains, Thursday, 5 November
Overcast. High 58°, low 41°.
Pressure29.80 inHg
Wind3.7 mph SE
Humidity31%
Visibility—
Dew point23°
Fri, 0657° / 40°0
57 °
Saint Vrains, Friday, 6 November
Overcast. High 57°, low 40°.
Pressure29.80 inHg
Wind5.8 mph NW
Humidity37%
Visibility—
Dew point26°
Sat, 0748° / 40°0.1
48 °
Saint Vrains, Saturday, 7 November
Light rain. High 48°, low 40°.
Pressure29.97 inHg
Wind13.9 mph N
Humidity61%
Visibility—
Dew point34°
Sun, 0859° / 39°0
59 °
Saint Vrains, Sunday, 8 November
Clear. High 59°, low 39°.
Pressure29.97 inHg
Wind7.7 mph W
Humidity42%
Visibility—
Dew point28°
Mon, 0960° / 39°0
60 °
Saint Vrains, Monday, 9 November
Overcast. High 60°, low 39°.
Pressure29.85 inHg
Wind3.8 mph NE
Humidity19%
Visibility—
Dew point12°
Tue, 1060° / 42°0
60 °
Saint Vrains, Tuesday, 10 November
Overcast. High 60°, low 42°.
Pressure29.65 inHg
Wind8.1 mph NW
Humidity23%
Visibility—
Dew point17°
Wed, 1155° / 42°0
55 °
Saint Vrains, Wednesday, 11 November
Clear. High 55°, low 42°.
Pressure29.53 inHg
Wind24.3 mph W
Humidity24%
Visibility—
Dew point17°
Thu, 1256° / 38°0
56 °
Saint Vrains, Thursday, 12 November
Clear. High 56°, low 38°.
Pressure29.74 inHg
Wind17.9 mph W
Humidity12%
Visibility—
Dew point0°
Fri, 1344° / 34°0.05
44 °
Saint Vrains, Friday, 13 November
Snow. High 44°, low 34°.
Pressure29.53 inHg
Wind34.1 mph N
Humidity75%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1450° / 26°0.06
50 °
Saint Vrains, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low26°
Average precipitation0.06 in
Chance of precipitation22%
Record high74° (2025)
Record low-1° (2000)
Sun, 1550° / 25°0.04
50 °
Saint Vrains, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low25°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (2016)
Record low-9° (1997)
Mon, 1652° / 25°0.02
52 °
Saint Vrains, Monday, 16 November
Climate normal for this date — 60-year average.
Average high52°
Average low25°
Average precipitation0.02 in
Chance of precipitation12%
Record high76° (2016)
Record low-7° (2014)
Tue, 1750° / 24°0.04
50 °
Saint Vrains, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low24°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (1981)
Record low-3° (2014)
Wed, 1849° / 24°0.03
49 °
Saint Vrains, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low24°
Average precipitation0.03 in
Chance of precipitation12%
Record high73° (2008)
Record low-1° (2000)
Thu, 1949° / 24°0.04
49 °
Saint Vrains, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low24°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (2007)
Record low4° (1961)
Fri, 2049° / 24°0.06
49 °
Saint Vrains, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low24°
Average precipitation0.06 in
Chance of precipitation17%
Record high66° (2003)
Record low-4° (1975)
Sat, 2147° / 23°0.04
47 °
Saint Vrains, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low23°
Average precipitation0.04 in
Chance of precipitation22%
Record high66° (2012)
Record low-3° (1975)
Sun, 2248° / 23°0.04
48 °
Saint Vrains, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high48°
Average low23°
Average precipitation0.04 in
Chance of precipitation20%
Record high67° (2002)
Record low-5° (1975)
Mon, 2345° / 23°0.04
45 °
Saint Vrains, Monday, 23 November
Climate normal for this date — 60-year average.
Average high45°
Average low23°
Average precipitation0.04 in
Chance of precipitation22%
Record high69° (2017)
Record low0° (1972)
Tue, 2447° / 22°0.03
47 °
Saint Vrains, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high47°
Average low22°
Average precipitation0.03 in
Chance of precipitation17%
Record high68° (2017)
Record low-1° (1999)
Wed, 2546° / 23°0.02
46 °
Saint Vrains, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high46°
Average low23°
Average precipitation0.02 in
Chance of precipitation20%
Record high69° (1990)
Record low-2° (1993)
Thu, 2643° / 22°0.07
43 °
Saint Vrains, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high43°
Average low22°
Average precipitation0.07 in
Chance of precipitation32%
Record high70° (2017)
Record low-9° (1975)
Fri, 2741° / 20°0.06
41 °
Saint Vrains, Friday, 27 November
Climate normal for this date — 60-year average.
Average high41°
Average low20°
Average precipitation0.06 in
Chance of precipitation28%
Record high73° (2017)
Record low-2° (2019)
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 Saint Vrains, 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 Saint Vrains, 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.