Monthly outlook for Castle Town, MT: average high 45.4°, average low 27.5°. That is 1.5° below the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 5 days and 0.8 inches. The warmest day looks like 22 October (56.8°), the coolest 25 October (19.4°).
45.4°/27.5°
Average high / low
−1.5°
Below normal
3 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
50.1°
50°
+0°
25 October – 3 November
37.7°
43.6°
-3.3°
4 November – 13 November
at normal
39.1°
—
October records over 66 years
81.1°1 October 2011All-time high
-20.2°10 October 2009All-time low
Climate normals and records are computed from the nearest reference point — Ringling (13 mi).
Fri, 1652° / 24°0
52 °
Castle Town, Friday, 16 October
Partly cloudy. High 52°, low 24°.
Pressure30.45 inHg
Wind5.2 mph SW
Humidity49%
Visibility6.2 mi
Dew point23°
Sat, 1755° / 34°0
55 °
Castle Town, Saturday, 17 October
Overcast. High 55°, low 34°.
Pressure30.06 inHg
Wind9 mph SW
Humidity40%
Visibility6.2 mi
Dew point25°
Sun, 1852° / 35°0
52 °
Castle Town, Sunday, 18 October
Clear. High 52°, low 35°.
Pressure30.09 inHg
Wind4.7 mph SE
Humidity50%
Visibility6.2 mi
Dew point29°
Mon, 1956° / 34°0
56 °
Castle Town, Monday, 19 October
Overcast. High 56°, low 34°.
Pressure29.85 inHg
Wind6.3 mph SW
Humidity39%
Visibility6.2 mi
Dew point28°
Tue, 2057° / 34°0
57 °
Castle Town, Tuesday, 20 October
Partly cloudy. High 57°, low 34°.
Pressure29.83 inHg
Wind5.1 mph SW
Humidity39%
Visibility—
Dew point27°
Wed, 2153° / 33°0
53 °
Castle Town, Wednesday, 21 October
Clear. High 53°, low 33°.
Pressure30.03 inHg
Wind6.9 mph E
Humidity59%
Visibility—
Dew point33°
Thu, 2257° / 39°0
57 °
Castle Town, Thursday, 22 October
Partly cloudy. High 57°, low 39°.
Pressure29.74 inHg
Wind11.7 mph SW
Humidity42%
Visibility—
Dew point30°
Fri, 2344° / 26°0.28
44 °
Castle Town, Friday, 23 October
Snow. High 44°, low 26°.
Pressure29.97 inHg
Wind15.4 mph NW
Humidity89%
Visibility—
Dew point29°
Sat, 2433° / 21°0.02
33 °
Castle Town, Saturday, 24 October
Light snow. High 33°, low 21°.
Pressure30.45 inHg
Wind12.6 mph W
Humidity49%
Visibility—
Dew point12°
Sun, 2539° / 19°0
39 °
Castle Town, Sunday, 25 October
Clear. High 39°, low 19°.
Pressure30.21 inHg
Wind11.2 mph SW
Humidity38%
Visibility—
Dew point11°
Mon, 2629° / 23°0.16
29 °
Castle Town, Monday, 26 October
Light snow. High 29°, low 23°.
Pressure30.06 inHg
Wind6.8 mph W
Humidity87%
Visibility—
Dew point25°
Tue, 2732° / 19°0.01
32 °
Castle Town, Tuesday, 27 October
Light snow. High 32°, low 19°.
Pressure30.03 inHg
Wind10.9 mph SW
Humidity78%
Visibility—
Dew point21°
Wed, 2838° / 24°0.01
38 °
Castle Town, Wednesday, 28 October
Light snow. High 38°, low 24°.
Pressure29.74 inHg
Wind21.9 mph W
Humidity51%
Visibility—
Dew point20°
Thu, 2942° / 22°0
42 °
Castle Town, Thursday, 29 October
Partly cloudy. High 42°, low 22°.
Pressure30.00 inHg
Wind16.7 mph W
Humidity52%
Visibility—
Dew point19°
Fri, 3046° / 28°0.07
46 °
Castle Town, Friday, 30 October
Snow. High 46°, low 28°.
Pressure29.83 inHg
Wind21 mph SW
Humidity67%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3142° / 25°0.06
42 °
Castle Town, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.06 in
Chance of precipitation27%
Record high61° (2014)
Record low-5° (1996)
Sun, 0142° / 25°0.05
42 °
Castle Town, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.05 in
Chance of precipitation28%
Record high61° (2014)
Record low-1° (1989)
Mon, 0241° / 24°0.04
41 °
Castle Town, Monday, 2 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation27%
Record high59° (1981)
Record low-7° (1961)
Tue, 0342° / 26°0.05
42 °
Castle Town, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.05 in
Chance of precipitation23%
Record high58° (1981)
Record low1° (1973)
Wed, 0442° / 26°0.06
42 °
Castle Town, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.06 in
Chance of precipitation33%
Record high57° (2021)
Record low-4° (1973)
Thu, 0542° / 25°0.06
42 °
Castle Town, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.06 in
Chance of precipitation37%
Record high61° (2020)
Record low-2° (1961)
Fri, 0641° / 24°0.04
41 °
Castle Town, Friday, 6 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation33%
Record high59° (1999)
Record low4° (2017)
Sat, 0740° / 24°0.04
40 °
Castle Town, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.04 in
Chance of precipitation35%
Record high61° (1999)
Record low-5° (2017)
Sun, 0839° / 23°0.09
39 °
Castle Town, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.09 in
Chance of precipitation37%
Record high59° (1999)
Record low-5° (2018)
Mon, 0938° / 21°0.05
38 °
Castle Town, Monday, 9 November
Climate normal for this date — 60-year average.
Average high38°
Average low21°
Average precipitation0.05 in
Chance of precipitation33%
Record high56° (2016)
Record low-2° (1986)
Tue, 1037° / 21°0.04
37 °
Castle Town, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.04 in
Chance of precipitation27%
Record high56° (2016)
Record low-11° (1986)
Wed, 1137° / 19°0.03
37 °
Castle Town, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high37°
Average low19°
Average precipitation0.03 in
Chance of precipitation22%
Record high57° (1990)
Record low-5° (2019)
Thu, 1238° / 20°0.06
38 °
Castle Town, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high38°
Average low20°
Average precipitation0.06 in
Chance of precipitation27%
Record high61° (1999)
Record low-24° (1986)
Fri, 1338° / 21°0.05
38 °
Castle Town, Friday, 13 November
Climate normal for this date — 60-year average.
Average high38°
Average low21°
Average precipitation0.05 in
Chance of precipitation28%
Record high59° (1999)
Record low-4° (1986)
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 Town, MT 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 Town, MT 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.