Monthly outlook for Forest Green, MT: average high 45°, average low 27.8°. That is 2.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 5 days and 0.8 inches. The warmest day looks like 5 November (60.2°), the coolest 24 October (14.1°).
45°/27.8°
Average high / low
+2.3°
Above normal
1 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
41.3°
42.2°
-0.5°
2 November – 11 November
51.1°
37.4°
+7.6°
12 November – 21 November
at normal
34.2°
—
October records over 66 years
76.6°1 October 2011All-time high
-18.2°10 October 2009All-time low
Sat, 2438° / 14°0
38 °
Forest Green, Saturday, 24 October
Clear. High 38°, low 14°.
Pressure30.30 inHg
Wind5.4 mph S
Humidity78%
Visibility6.2 mi
Dew point15°
Sun, 2541° / 24°0
41 °
Forest Green, Sunday, 25 October
Clear. High 41°, low 24°.
Pressure30.30 inHg
Wind10.5 mph SE
Humidity74%
Visibility6.2 mi
Dew point23°
Mon, 2645° / 27°0
45 °
Forest Green, Monday, 26 October
Overcast. High 45°, low 27°.
Pressure30.09 inHg
Wind5.7 mph SE
Humidity66%
Visibility6.2 mi
Dew point25°
Tue, 2736° / 28°0.02
36 °
Forest Green, Tuesday, 27 October
Light snow. High 36°, low 28°.
Pressure30.09 inHg
Wind9 mph W
Humidity99%
Visibility0.6 mi
Dew point29°
Wed, 2845° / 28°0
45 °
Forest Green, Wednesday, 28 October
Overcast. High 45°, low 28°.
Pressure29.91 inHg
Wind8 mph S
Humidity68%
Visibility—
Dew point30°
Thu, 2940° / 26°0
40 °
Forest Green, Thursday, 29 October
Partly cloudy. High 40°, low 26°.
Pressure29.94 inHg
Wind6.2 mph S
Humidity63%
Visibility—
Dew point27°
Fri, 3043° / 24°0
43 °
Forest Green, Friday, 30 October
Clear. High 43°, low 24°.
Pressure29.80 inHg
Wind8.5 mph SW
Humidity55%
Visibility—
Dew point24°
Sat, 3142° / 27°0
42 °
Forest Green, Saturday, 31 October
Overcast. High 42°, low 27°.
Pressure29.88 inHg
Wind4.9 mph SW
Humidity55%
Visibility—
Dew point24°
Sun, 0142° / 25°0
42 °
Forest Green, Sunday, 1 November
Overcast. High 42°, low 25°.
Pressure29.91 inHg
Wind8.9 mph W
Humidity61%
Visibility—
Dew point27°
Mon, 0241° / 23°0
41 °
Forest Green, Monday, 2 November
Clear. High 41°, low 23°.
Pressure30.42 inHg
Wind6.2 mph W
Humidity31%
Visibility—
Dew point8°
Tue, 0347° / 27°0
47 °
Forest Green, Tuesday, 3 November
Overcast. High 47°, low 27°.
Pressure30.45 inHg
Wind6.2 mph SW
Humidity29%
Visibility—
Dew point11°
Wed, 0457° / 38°0
57 °
Forest Green, Wednesday, 4 November
Overcast. High 57°, low 38°.
Pressure30.18 inHg
Wind6.1 mph SW
Humidity24%
Visibility—
Dew point16°
Thu, 0560° / 41°0
60 °
Forest Green, Thursday, 5 November
Clear. High 60°, low 41°.
Pressure29.91 inHg
Wind3.6 mph S
Humidity23%
Visibility—
Dew point18°
Fri, 0654° / 38°0
54 °
Forest Green, Friday, 6 November
Overcast. High 54°, low 38°.
Pressure29.85 inHg
Wind6.5 mph W
Humidity27%
Visibility—
Dew point17°
Sat, 0747° / 33°0
47 °
Forest Green, Saturday, 7 November
Overcast. High 47°, low 33°.
Pressure29.91 inHg
Wind11.1 mph SW
Humidity44%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0837° / 22°0.07
37 °
Forest Green, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.07 in
Chance of precipitation43%
Record high56° (2016)
Record low-9° (2018)
Mon, 0936° / 21°0.05
36 °
Forest Green, Monday, 9 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.05 in
Chance of precipitation25%
Record high57° (2016)
Record low-11° (1986)
Tue, 1035° / 20°0.04
35 °
Forest Green, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.04 in
Chance of precipitation23%
Record high53° (2016)
Record low-21° (1986)
Wed, 1134° / 19°0.03
34 °
Forest Green, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.03 in
Chance of precipitation22%
Record high56° (2016)
Record low-11° (2019)
Thu, 1236° / 20°0.04
36 °
Forest Green, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high36°
Average low20°
Average precipitation0.04 in
Chance of precipitation27%
Record high57° (1999)
Record low-22° (1986)
Fri, 1336° / 21°0.05
36 °
Forest Green, Friday, 13 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.05 in
Chance of precipitation25%
Record high55° (1999)
Record low-1° (2000)
Sat, 1435° / 20°0.05
35 °
Forest Green, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.05 in
Chance of precipitation33%
Record high56° (1999)
Record low-4° (1978)
Sun, 1535° / 19°0.03
35 °
Forest Green, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high35°
Average low19°
Average precipitation0.03 in
Chance of precipitation20%
Record high57° (1999)
Record low-2° (2014)
Mon, 1635° / 20°0.04
35 °
Forest Green, Monday, 16 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.04 in
Chance of precipitation30%
Record high50° (1999)
Record low-5° (1961)
Tue, 1734° / 20°0.04
34 °
Forest Green, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.04 in
Chance of precipitation35%
Record high55° (1999)
Record low-10° (2022)
Wed, 1833° / 19°0.05
33 °
Forest Green, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high33°
Average low19°
Average precipitation0.05 in
Chance of precipitation37%
Record high48° (2008)
Record low-15° (2022)
Thu, 1932° / 18°0.07
32 °
Forest Green, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high32°
Average low18°
Average precipitation0.07 in
Chance of precipitation37%
Record high45° (1989)
Record low-9° (1985)
Fri, 2033° / 18°0.04
33 °
Forest Green, Friday, 20 November
Climate normal for this date — 60-year average.
Average high33°
Average low18°
Average precipitation0.04 in
Chance of precipitation27%
Record high49° (1987)
Record low-12° (1977)
Sat, 2132° / 16°0.02
32 °
Forest Green, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.02 in
Chance of precipitation25%
Record high48° (2002)
Record low-18° (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 Forest Green, 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 Forest Green, 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.