Monthly outlook for Castle Rocks, ID: average high 37.9°, average low 26.5°. That is 0.1° above the climate normal for November. Precipitation is expected on 10 days (about 3.9 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 15 November (49.9°), the coolest 27 November (17.1°).
37.9°/26.5°
Average high / low
+0.1°
Above normal
10 / 5
Wet days / normal
3.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
40.3°
39.5°
+0.4°
24 November – 3 December
33.9°
34.5°
-0.4°
4 December – 13 December
at normal
31.9°
—
November records over 66 years
66.6°5 November 1980All-time high
-18.6°23 November 1985All-time low
Sun, 1550° / 30°0
50 °
Castle Rocks, Sunday, 15 November
Overcast. High 50°, low 30°.
Pressure30.06 inHg
Wind7.4 mph SE
Humidity54%
Visibility6.2 mi
Dew point27°
Mon, 1646° / 34°0.17
46 °
Castle Rocks, Monday, 16 November
Light rain. High 46°, low 34°.
Pressure30.03 inHg
Wind1.9 mph S
Humidity58%
Visibility6.2 mi
Dew point32°
Tue, 1739° / 23°0.17
39 °
Castle Rocks, Tuesday, 17 November
Light rain. High 39°, low 23°.
Pressure29.97 inHg
Wind7.8 mph W
Humidity75%
Visibility6.2 mi
Dew point32°
Wed, 1839° / 22°0.09
39 °
Castle Rocks, Wednesday, 18 November
Snow. High 39°, low 22°.
Pressure30.09 inHg
Wind9.3 mph E
Humidity69%
Visibility6.2 mi
Dew point20°
Thu, 1937° / 33°0.32
37 °
Castle Rocks, Thursday, 19 November
Snow. High 37°, low 33°.
Pressure30.03 inHg
Wind5.9 mph E
Humidity93%
Visibility—
Dew point33°
Fri, 2036° / 24°0
36 °
Castle Rocks, Friday, 20 November
Light snow. High 36°, low 24°.
Pressure29.94 inHg
Wind5.3 mph NE
Humidity94%
Visibility—
Dew point34°
Sat, 2137° / 23°0
37 °
Castle Rocks, Saturday, 21 November
Partly cloudy. High 37°, low 23°.
Pressure30.24 inHg
Wind8.2 mph NE
Humidity82%
Visibility—
Dew point28°
Sun, 2238° / 27°0
38 °
Castle Rocks, Sunday, 22 November
Overcast. High 38°, low 27°.
Pressure30.09 inHg
Wind6.9 mph NE
Humidity72%
Visibility—
Dew point27°
Mon, 2338° / 27°0
38 °
Castle Rocks, Monday, 23 November
Overcast. High 38°, low 27°.
Pressure30.15 inHg
Wind6 mph NE
Humidity73%
Visibility—
Dew point28°
Tue, 2438° / 28°0.31
38 °
Castle Rocks, Tuesday, 24 November
Snow. High 38°, low 28°.
Pressure30.00 inHg
Wind7.8 mph NE
Humidity63%
Visibility—
Dew point25°
Wed, 2533° / 21°0.12
33 °
Castle Rocks, Wednesday, 25 November
Snow. High 33°, low 21°.
Pressure30.15 inHg
Wind9.7 mph NW
Humidity85%
Visibility—
Dew point28°
Thu, 2631° / 20°0.04
31 °
Castle Rocks, Thursday, 26 November
Light snow. High 31°, low 20°.
Pressure30.30 inHg
Wind14.5 mph NW
Humidity83%
Visibility—
Dew point24°
Fri, 2731° / 17°0.03
31 °
Castle Rocks, Friday, 27 November
Light snow. High 31°, low 17°.
Pressure30.33 inHg
Wind6.9 mph N
Humidity70%
Visibility—
Dew point18°
Sat, 2835° / 29°1.93
35 °
Castle Rocks, Saturday, 28 November
Snow. High 35°, low 29°.
Pressure30.18 inHg
Wind6.6 mph NE
Humidity99%
Visibility—
Dew point30°
Sun, 2935° / 34°0.39
35 °
Castle Rocks, Sunday, 29 November
Light rain. High 35°, low 34°.
Pressure30.12 inHg
Wind8.9 mph NE
Humidity103%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3034° / 18°0.09
34 °
Castle Rocks, Monday, 30 November
Climate normal for this date — 60-year average.
Average high34°
Average low18°
Average precipitation0.09 in
Chance of precipitation37%
Record high50° (1969)
Record low-7° (1975)
Tue, 0134° / 19°0.12
34 °
Castle Rocks, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.12 in
Chance of precipitation47%
Record high51° (2008)
Record low-5° (1991)
Wed, 0235° / 19°0.13
35 °
Castle Rocks, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high35°
Average low19°
Average precipitation0.13 in
Chance of precipitation42%
Record high51° (2021)
Record low-6° (2006)
Thu, 0334° / 19°0.08
34 °
Castle Rocks, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.08 in
Chance of precipitation38%
Record high48° (2021)
Record low-3° (2011)
Fri, 0434° / 18°0.08
34 °
Castle Rocks, Friday, 4 December
Climate normal for this date — 60-year average.
Average high34°
Average low18°
Average precipitation0.08 in
Chance of precipitation42%
Record high49° (2021)
Record low-9° (1996)
Sat, 0532° / 17°0.09
32 °
Castle Rocks, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.09 in
Chance of precipitation30%
Record high45° (2024)
Record low-8° (2013)
Sun, 0632° / 17°0.09
32 °
Castle Rocks, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.09 in
Chance of precipitation35%
Record high46° (2008)
Record low-7° (1992)
Mon, 0732° / 17°0.09
32 °
Castle Rocks, Monday, 7 December
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.09 in
Chance of precipitation42%
Record high44° (1981)
Record low-11° (1978)
Tue, 0831° / 15°0.08
31 °
Castle Rocks, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high31°
Average low15°
Average precipitation0.08 in
Chance of precipitation40%
Record high46° (1976)
Record low-13° (1978)
Wed, 0931° / 15°0.07
31 °
Castle Rocks, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high31°
Average low15°
Average precipitation0.07 in
Chance of precipitation30%
Record high46° (1990)
Record low-23° (1972)
Thu, 1032° / 17°0.07
32 °
Castle Rocks, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.07 in
Chance of precipitation28%
Record high51° (2025)
Record low-24° (1972)
Fri, 1132° / 16°0.06
32 °
Castle Rocks, Friday, 11 December
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.06 in
Chance of precipitation33%
Record high48° (2025)
Record low-14° (1972)
Sat, 1232° / 17°0.11
32 °
Castle Rocks, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.11 in
Chance of precipitation50%
Record high48° (2025)
Record low-10° (1961)
Sun, 1331° / 16°0.13
31 °
Castle Rocks, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.13 in
Chance of precipitation45%
Record high49° (2025)
Record low-17° (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 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.