Monthly outlook for Castle Rocks, ID: average high 49°, average low 33.2°. That is 1.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 7 November (58.4°), the coolest 28 October (23.6°).
49°/33.2°
Average high / low
+1.1°
Above normal
5 / 4
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
47°
48.6°
-0.9°
6 November – 15 November
52.4°
43.7°
+4.8°
16 November – 25 November
at normal
38.4°
—
October records over 66 years
84.9°2 October 2010All-time high
-1.3°27 October 1970All-time low
Wed, 2847° / 24°0
47 °
Castle Rocks, Wednesday, 28 October
Overcast. High 47°, low 24°.
Pressure30.12 inHg
Wind1 mph SE
Humidity67%
Visibility6.2 mi
Dew point30°
Thu, 2951° / 28°0
51 °
Castle Rocks, Thursday, 29 October
Overcast. High 51°, low 28°.
Pressure30.00 inHg
Wind4.4 mph E
Humidity54%
Visibility6.2 mi
Dew point29°
Fri, 3048° / 36°0.2
48 °
Castle Rocks, Friday, 30 October
Rain. High 48°, low 36°.
Pressure29.91 inHg
Wind6.6 mph SE
Humidity71%
Visibility6.2 mi
Dew point40°
Sat, 3149° / 32°0.16
49 °
Castle Rocks, Saturday, 31 October
Light rain. High 49°, low 32°.
Pressure29.94 inHg
Wind2.9 mph NE
Humidity93%
Visibility—
Dew point39°
Sun, 0139° / 31°0.46
39 °
Castle Rocks, Sunday, 1 November
Rain. High 39°, low 31°.
Pressure29.97 inHg
Wind9.9 mph W
Humidity82%
Visibility—
Dew point34°
Mon, 0246° / 28°0
46 °
Castle Rocks, Monday, 2 November
Clear. High 46°, low 28°.
Pressure30.18 inHg
Wind7.3 mph N
Humidity30%
Visibility—
Dew point10°
Tue, 0346° / 30°0
46 °
Castle Rocks, Tuesday, 3 November
Partly cloudy. High 46°, low 30°.
Pressure30.30 inHg
Wind6.9 mph NE
Humidity32%
Visibility—
Dew point13°
Wed, 0448° / 32°0
48 °
Castle Rocks, Wednesday, 4 November
Partly cloudy. High 48°, low 32°.
Pressure30.09 inHg
Wind5.8 mph NE
Humidity26%
Visibility—
Dew point10°
Thu, 0552° / 35°0
52 °
Castle Rocks, Thursday, 5 November
Overcast. High 52°, low 35°.
Pressure30.09 inHg
Wind7 mph NE
Humidity29%
Visibility—
Dew point16°
Fri, 0656° / 41°0
56 °
Castle Rocks, Friday, 6 November
Overcast. High 56°, low 41°.
Pressure29.97 inHg
Wind7.9 mph NE
Humidity39%
Visibility—
Dew point26°
Sat, 0758° / 42°0.13
58 °
Castle Rocks, Saturday, 7 November
Light rain. High 58°, low 42°.
Pressure29.80 inHg
Wind10.2 mph S
Humidity33%
Visibility—
Dew point25°
Sun, 0846° / 36°0.13
46 °
Castle Rocks, Sunday, 8 November
Rain. High 46°, low 36°.
Pressure30.15 inHg
Wind13.6 mph NW
Humidity62%
Visibility—
Dew point30°
Mon, 0951° / 33°0
51 °
Castle Rocks, Monday, 9 November
Partly cloudy. High 51°, low 33°.
Pressure30.27 inHg
Wind7.2 mph NE
Humidity35%
Visibility—
Dew point19°
Tue, 1053° / 38°0
53 °
Castle Rocks, Tuesday, 10 November
Overcast. High 53°, low 38°.
Pressure30.12 inHg
Wind7 mph NE
Humidity35%
Visibility—
Dew point21°
Wed, 1150° / 37°0
50 °
Castle Rocks, Wednesday, 11 November
Overcast. High 50°, low 37°.
Pressure29.88 inHg
Wind7.9 mph W
Humidity40%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1243° / 27°0.07
43 °
Castle Rocks, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.07 in
Chance of precipitation28%
Record high64° (1999)
Record low6° (1982)
Fri, 1343° / 27°0.08
43 °
Castle Rocks, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.08 in
Chance of precipitation32%
Record high63° (1999)
Record low2° (2000)
Sat, 1442° / 26°0.06
42 °
Castle Rocks, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high64° (1999)
Record low-7° (1964)
Sun, 1542° / 25°0.05
42 °
Castle Rocks, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.05 in
Chance of precipitation20%
Record high59° (1999)
Record low-6° (1964)
Mon, 1642° / 26°0.07
42 °
Castle Rocks, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.07 in
Chance of precipitation33%
Record high60° (1999)
Record low-8° (2014)
Tue, 1740° / 26°0.09
40 °
Castle Rocks, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.09 in
Chance of precipitation38%
Record high58° (2008)
Record low-2° (2000)
Wed, 1840° / 24°0.08
40 °
Castle Rocks, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.08 in
Chance of precipitation28%
Record high58° (2008)
Record low0° (2014)
Thu, 1939° / 23°0.07
39 °
Castle Rocks, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.07 in
Chance of precipitation32%
Record high53° (1989)
Record low0° (1985)
Fri, 2039° / 24°0.07
39 °
Castle Rocks, Friday, 20 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.07 in
Chance of precipitation37%
Record high54° (1989)
Record low2° (2011)
Sat, 2138° / 22°0.07
38 °
Castle Rocks, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.07 in
Chance of precipitation33%
Record high55° (2002)
Record low-4° (1994)
Sun, 2237° / 21°0.12
37 °
Castle Rocks, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.12 in
Chance of precipitation37%
Record high53° (2002)
Record low-8° (1994)
Mon, 2337° / 20°0.08
37 °
Castle Rocks, Monday, 23 November
Climate normal for this date — 60-year average.
Average high37°
Average low20°
Average precipitation0.08 in
Chance of precipitation32%
Record high52° (2017)
Record low-19° (1985)
Tue, 2437° / 21°0.11
37 °
Castle Rocks, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.11 in
Chance of precipitation35%
Record high55° (1995)
Record low-8° (2010)
Wed, 2535° / 21°0.09
35 °
Castle Rocks, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.09 in
Chance of precipitation52%
Record high51° (1995)
Record low-7° (2010)
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 Rocks, ID 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 Rocks, ID 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.