Monthly outlook for Forest Green, MT: average high 41.3°, average low 25.4°. That is 0.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 8 November (47.6°), the coolest 24 October (16.2°).
41.3°/25.4°
Average high / low
+0.5°
Above normal
3 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
39.4°
41.5°
-1.1°
3 November – 12 November
44.4°
37.1°
+4°
13 November – 22 November
at normal
33.6°
—
October records over 66 years
76.6°1 October 2011All-time high
-18.2°10 October 2009All-time low
Sun, 2540° / 23°0
40 °
Forest Green, Sunday, 25 October
Partly cloudy. High 40°, low 23°.
Pressure30.24 inHg
Wind8.1 mph SE
Humidity66%
Visibility6.2 mi
Dew point20°
Mon, 2645° / 27°0.04
45 °
Forest Green, Monday, 26 October
Snow. High 45°, low 27°.
Pressure30.03 inHg
Wind6.5 mph SE
Humidity68%
Visibility6.2 mi
Dew point26°
Tue, 2735° / 27°0.21
35 °
Forest Green, Tuesday, 27 October
Snow. High 35°, low 27°.
Pressure29.97 inHg
Wind14.3 mph W
Humidity96%
Visibility6.2 mi
Dew point26°
Wed, 2837° / 27°0
37 °
Forest Green, Wednesday, 28 October
Light snow. High 37°, low 27°.
Pressure30.00 inHg
Wind7.6 mph SW
Humidity84%
Visibility6.2 mi
Dew point22°
Thu, 2943° / 27°0
43 °
Forest Green, Thursday, 29 October
Overcast. High 43°, low 27°.
Pressure29.94 inHg
Wind9.6 mph SE
Humidity70%
Visibility—
Dew point31°
Fri, 3047° / 28°0.11
47 °
Forest Green, Friday, 30 October
Snow. High 47°, low 28°.
Pressure29.68 inHg
Wind11.7 mph S
Humidity64%
Visibility—
Dew point31°
Sat, 3131° / 16°0.21
31 °
Forest Green, Saturday, 31 October
Snow. High 31°, low 16°.
Pressure30.06 inHg
Wind10.6 mph W
Humidity83%
Visibility—
Dew point23°
Sun, 0135° / 19°0
35 °
Forest Green, Sunday, 1 November
Partly cloudy. High 35°, low 19°.
Pressure30.30 inHg
Wind13.8 mph W
Humidity67%
Visibility—
Dew point20°
Mon, 0247° / 24°0
47 °
Forest Green, Monday, 2 November
Clear. High 47°, low 24°.
Pressure30.36 inHg
Wind3.9 mph SW
Humidity61%
Visibility—
Dew point28°
Tue, 0346° / 32°0
46 °
Forest Green, Tuesday, 3 November
Overcast. High 46°, low 32°.
Pressure29.97 inHg
Wind5.5 mph SW
Humidity57%
Visibility—
Dew point28°
Wed, 0444° / 31°0
44 °
Forest Green, Wednesday, 4 November
Light snow. High 44°, low 31°.
Pressure29.68 inHg
Wind19.3 mph SW
Humidity71%
Visibility—
Dew point32°
Thu, 0545° / 29°0
45 °
Forest Green, Thursday, 5 November
Partly cloudy. High 45°, low 29°.
Pressure29.71 inHg
Wind15 mph SW
Humidity63%
Visibility—
Dew point29°
Fri, 0644° / 27°0.01
44 °
Forest Green, Friday, 6 November
Light snow. High 44°, low 27°.
Pressure29.56 inHg
Wind15.6 mph W
Humidity65%
Visibility—
Dew point32°
Sat, 0740° / 26°0
40 °
Forest Green, Saturday, 7 November
Overcast. High 40°, low 26°.
Pressure30.06 inHg
Wind19.5 mph W
Humidity56%
Visibility—
Dew point21°
Sun, 0848° / 29°0
48 °
Forest Green, Sunday, 8 November
Partly cloudy. High 48°, low 29°.
Pressure29.85 inHg
Wind9 mph S
Humidity34%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 2231° / 16°0.05
31 °
Forest Green, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.05 in
Chance of precipitation30%
Record high44° (2021)
Record low-22° (1970)
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.