Monthly outlook for Castle Town, MT: average high 44.4°, average low 26.1°. That is 0.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 0.8 inches. The warmest day looks like 22 October (60°), the coolest 24 October (14.4°).
44.4°/26.1°
Average high / low
+0.1°
Above normal
3 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
42.9°
45.7°
-1.5°
1 November – 10 November
46.8°
40.3°
+3.6°
11 November – 20 November
at normal
36.2°
—
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, 2340° / 24°0.78
40 °
Castle Town, Friday, 23 October
Snow. High 40°, low 24°.
Pressure29.91 inHg
Wind6.1 mph S
Humidity44%
Visibility6.2 mi
Dew point37°
Sat, 2433° / 14°0
33 °
Castle Town, Saturday, 24 October
Clear. High 33°, low 14°.
Pressure29.71 inHg
Wind8.1 mph W
Humidity99%
Visibility0.9 mi
Dew point43°
Sun, 2531° / 19°0
31 °
Castle Town, Sunday, 25 October
Clear. High 31°, low 19°.
Pressure30.42 inHg
Wind1.5 mph S
Humidity82%
Visibility6.2 mi
Dew point12°
Mon, 2639° / 17°0
39 °
Castle Town, Monday, 26 October
Clear. High 39°, low 17°.
Pressure30.39 inHg
Wind4.4 mph E
Humidity89%
Visibility6.2 mi
Dew point20°
Tue, 2742° / 23°0
42 °
Castle Town, Tuesday, 27 October
Overcast. High 42°, low 23°.
Pressure30.27 inHg
Wind5.9 mph NW
Humidity53%
Visibility—
Dew point23°
Wed, 2847° / 22°0
47 °
Castle Town, Wednesday, 28 October
Mostly clear. High 47°, low 22°.
Pressure30.24 inHg
Wind7.5 mph SW
Humidity28%
Visibility—
Dew point8°
Thu, 2952° / 31°0
52 °
Castle Town, Thursday, 29 October
Overcast. High 52°, low 31°.
Pressure29.83 inHg
Wind12.9 mph SW
Humidity29%
Visibility—
Dew point15°
Fri, 3047° / 31°0
47 °
Castle Town, Friday, 30 October
Clear. High 47°, low 31°.
Pressure29.56 inHg
Wind18.9 mph W
Humidity43%
Visibility—
Dew point22°
Sat, 3138° / 26°0.06
38 °
Castle Town, Saturday, 31 October
Light snow. High 38°, low 26°.
Pressure29.74 inHg
Wind23.2 mph W
Humidity53%
Visibility—
Dew point18°
Sun, 0137° / 22°0
37 °
Castle Town, Sunday, 1 November
Mostly clear. High 37°, low 22°.
Pressure30.15 inHg
Wind9.5 mph W
Humidity55%
Visibility—
Dew point17°
Mon, 0245° / 22°0
45 °
Castle Town, Monday, 2 November
Overcast. High 45°, low 22°.
Pressure30.21 inHg
Wind8.5 mph SW
Humidity30%
Visibility—
Dew point9°
Tue, 0350° / 27°0
50 °
Castle Town, Tuesday, 3 November
Clear. High 50°, low 27°.
Pressure30.03 inHg
Wind17.4 mph SW
Humidity28%
Visibility—
Dew point13°
Wed, 0446° / 32°0.01
46 °
Castle Town, Wednesday, 4 November
Light rain. High 46°, low 32°.
Pressure29.83 inHg
Wind33.4 mph W
Humidity57%
Visibility—
Dew point28°
Thu, 0546° / 32°0.04
46 °
Castle Town, Thursday, 5 November
Light rain. High 46°, low 32°.
Pressure29.83 inHg
Wind22.7 mph W
Humidity69%
Visibility—
Dew point31°
Fri, 0656° / 40°0
56 °
Castle Town, Friday, 6 November
Clear. High 56°, low 40°.
Pressure29.83 inHg
Wind19.4 mph SW
Humidity49%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1437° / 21°0.04
37 °
Castle Town, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.04 in
Chance of precipitation35%
Record high59° (1999)
Record low-11° (1978)
Sun, 1537° / 20°0.03
37 °
Castle Town, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high37°
Average low20°
Average precipitation0.03 in
Chance of precipitation20%
Record high59° (1999)
Record low-2° (2009)
Mon, 1637° / 21°0.04
37 °
Castle Town, Monday, 16 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.04 in
Chance of precipitation32%
Record high52° (1999)
Record low-12° (1961)
Tue, 1735° / 20°0.04
35 °
Castle Town, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.04 in
Chance of precipitation30%
Record high58° (1999)
Record low-4° (1968)
Wed, 1835° / 20°0.06
35 °
Castle Town, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.06 in
Chance of precipitation33%
Record high53° (2008)
Record low-17° (2022)
Thu, 1934° / 19°0.06
34 °
Castle Town, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.06 in
Chance of precipitation32%
Record high45° (2003)
Record low-6° (1978)
Fri, 2034° / 18°0.04
34 °
Castle Town, Friday, 20 November
Climate normal for this date — 60-year average.
Average high34°
Average low18°
Average precipitation0.04 in
Chance of precipitation28%
Record high49° (1966)
Record low-9° (1978)
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.