Monthly outlook for Castle Rock, MN: average high 55.9°, average low 44.2°. That is 4.7° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 1 November (67.6°), the coolest 7 November (33.8°).
55.9°/44.2°
Average high / low
+4.7°
Above normal
5 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
58.1°
49.5°
+4.8°
7 November – 16 November
52.2°
43.5°
+4.8°
17 November – 26 November
at normal
38.7°
—
October records over 66 years
88°3 October 2025All-time high
17.8°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Cannon Falls (12 mi).
Thu, 2955° / 42°0
55 °
Castle Rock, Thursday, 29 October
Clear. High 55°, low 42°.
Pressure30.21 inHg
Wind8.3 mph NW
Humidity62%
Visibility6.2 mi
Dew point39°
Fri, 3058° / 39°0
58 °
Castle Rock, Friday, 30 October
Partly cloudy. High 58°, low 39°.
Pressure30.30 inHg
Wind6.8 mph E
Humidity65%
Visibility4.7 mi
Dew point42°
Sat, 3160° / 41°0
60 °
Castle Rock, Saturday, 31 October
Overcast. High 60°, low 41°.
Pressure30.27 inHg
Wind7.7 mph E
Humidity74%
Visibility6.2 mi
Dew point46°
Sun, 0168° / 54°0.01
68 °
Castle Rock, Sunday, 1 November
Light rain. High 68°, low 54°.
Pressure30.21 inHg
Wind10.4 mph SE
Humidity66%
Visibility—
Dew point54°
Mon, 0262° / 57°0.29
62 °
Castle Rock, Monday, 2 November
Light rain. High 62°, low 57°.
Pressure29.83 inHg
Wind17.1 mph SE
Humidity90%
Visibility—
Dew point58°
Tue, 0356° / 52°0.93
56 °
Castle Rock, Tuesday, 3 November
Rain. High 56°, low 52°.
Pressure29.88 inHg
Wind21.1 mph E
Humidity91%
Visibility—
Dew point51°
Wed, 0460° / 52°0.06
60 °
Castle Rock, Wednesday, 4 November
Light rain. High 60°, low 52°.
Pressure29.91 inHg
Wind10.7 mph N
Humidity70%
Visibility—
Dew point47°
Thu, 0552° / 42°0
52 °
Castle Rock, Thursday, 5 November
Overcast. High 52°, low 42°.
Pressure30.00 inHg
Wind15.7 mph N
Humidity71%
Visibility—
Dew point40°
Fri, 0648° / 34°0
48 °
Castle Rock, Friday, 6 November
Mostly clear. High 48°, low 34°.
Pressure30.27 inHg
Wind8.1 mph NE
Humidity53%
Visibility—
Dew point28°
Sat, 0751° / 34°0
51 °
Castle Rock, Saturday, 7 November
Clear. High 51°, low 34°.
Pressure30.21 inHg
Wind10.7 mph S
Humidity46%
Visibility—
Dew point27°
Sun, 0857° / 39°0
57 °
Castle Rock, Sunday, 8 November
Clear. High 57°, low 39°.
Pressure30.06 inHg
Wind15.5 mph S
Humidity50%
Visibility—
Dew point34°
Mon, 0959° / 45°0
59 °
Castle Rock, Monday, 9 November
Overcast. High 59°, low 45°.
Pressure29.91 inHg
Wind16.2 mph S
Humidity69%
Visibility—
Dew point47°
Tue, 1057° / 47°0.02
57 °
Castle Rock, Tuesday, 10 November
Light rain. High 57°, low 47°.
Pressure29.71 inHg
Wind15.3 mph W
Humidity76%
Visibility—
Dew point49°
Wed, 1146° / 39°0
46 °
Castle Rock, Wednesday, 11 November
Overcast. High 46°, low 39°.
Pressure29.71 inHg
Wind15.1 mph NW
Humidity57%
Visibility—
Dew point28°
Thu, 1243° / 38°0.21
43 °
Castle Rock, Thursday, 12 November
Rain. High 43°, low 38°.
Pressure29.50 inHg
Wind11.9 mph NW
Humidity92%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1342° / 29°0.07
42 °
Castle Rock, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation25%
Record high67° (1999)
Record low4° (1986)
Sat, 1442° / 30°0.02
42 °
Castle Rock, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (2025)
Record low12° (2014)
Sun, 1543° / 30°0.05
43 °
Castle Rock, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.05 in
Chance of precipitation23%
Record high65° (1990)
Record low11° (2014)
Mon, 1643° / 29°0.07
43 °
Castle Rock, Monday, 16 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.07 in
Chance of precipitation23%
Record high66° (2023)
Record low9° (1997)
Tue, 1742° / 30°0.07
42 °
Castle Rock, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.07 in
Chance of precipitation25%
Record high67° (2001)
Record low8° (2014)
Wed, 1842° / 29°0.07
42 °
Castle Rock, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation30%
Record high63° (1999)
Record low4° (2014)
Thu, 1941° / 29°0.09
41 °
Castle Rock, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.09 in
Chance of precipitation27%
Record high57° (2012)
Record low7° (1986)
Fri, 2039° / 27°0.09
39 °
Castle Rock, Friday, 20 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.09 in
Chance of precipitation22%
Record high58° (2003)
Record low6° (2022)
Sat, 2138° / 25°0.05
38 °
Castle Rock, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (1990)
Record low-1° (2014)
Sun, 2238° / 26°0.03
38 °
Castle Rock, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.03 in
Chance of precipitation17%
Record high60° (2012)
Record low-1° (1978)
Mon, 2338° / 26°0.1
38 °
Castle Rock, Monday, 23 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.1 in
Chance of precipitation28%
Record high56° (2001)
Record low3° (1989)
Tue, 2437° / 24°0.04
37 °
Castle Rock, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.04 in
Chance of precipitation18%
Record high61° (2011)
Record low-4° (1989)
Wed, 2537° / 25°0.04
37 °
Castle Rock, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.04 in
Chance of precipitation23%
Record high56° (2011)
Record low-2° (1991)
Thu, 2635° / 23°0.07
35 °
Castle Rock, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.07 in
Chance of precipitation35%
Record high56° (1960)
Record low-8° (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 Castle Rock, MN 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 Castle Rock, MN 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.