Monthly outlook for Lodge Grass, MT: average high 58.2°, average low 38.3°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 22 October (74°), the coolest 31 October (26.7°).
58.2°/38.3°
Average high / low
+2°
Above normal
4 / 4
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
64.4°
57.1°
+4.1°
29 October – 7 November
47.9°
50.6°
-1.5°
8 November – 17 November
at normal
46.5°
—
October records over 66 years
90°1 October 2011All-time high
-17.7°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Forty Mile Colony (2 mi).
Tue, 2069° / 41°0
69 °
Lodge Grass, Tuesday, 20 October
Partly cloudy. High 69°, low 41°.
Pressure30.03 inHg
Wind2.5 mph NW
Humidity35%
Visibility6.2 mi
Dew point37°
Wed, 2169° / 41°0
69 °
Lodge Grass, Wednesday, 21 October
Clear. High 69°, low 41°.
Pressure30.09 inHg
Wind0.6 mph N
Humidity48%
Visibility6.2 mi
Dew point43°
Thu, 2274° / 45°0
74 °
Lodge Grass, Thursday, 22 October
Clear. High 74°, low 45°.
Pressure29.88 inHg
Wind0.6 mph NW
Humidity39%
Visibility6.2 mi
Dew point44°
Fri, 2366° / 51°0.09
66 °
Lodge Grass, Friday, 23 October
Light rain. High 66°, low 51°.
Pressure29.53 inHg
Wind8.9 mph W
Humidity51%
Visibility—
Dew point45°
Sat, 2454° / 41°0.01
54 °
Lodge Grass, Saturday, 24 October
Light rain. High 54°, low 41°.
Pressure30.12 inHg
Wind10.4 mph W
Humidity47%
Visibility—
Dew point31°
Sun, 2553° / 34°0
53 °
Lodge Grass, Sunday, 25 October
Partly cloudy. High 53°, low 34°.
Pressure30.03 inHg
Wind7.7 mph NW
Humidity36%
Visibility—
Dew point22°
Mon, 2655° / 37°0
55 °
Lodge Grass, Monday, 26 October
Clear. High 55°, low 37°.
Pressure30.09 inHg
Wind8.1 mph NW
Humidity50%
Visibility—
Dew point30°
Tue, 2760° / 39°0
60 °
Lodge Grass, Tuesday, 27 October
Mostly clear. High 60°, low 39°.
Pressure29.80 inHg
Wind6.6 mph SE
Humidity30%
Visibility—
Dew point22°
Wed, 2870° / 46°0
70 °
Lodge Grass, Wednesday, 28 October
Overcast. High 70°, low 46°.
Pressure29.56 inHg
Wind7.6 mph SE
Humidity24%
Visibility—
Dew point23°
Thu, 2958° / 33°0.4
58 °
Lodge Grass, Thursday, 29 October
Snow. High 58°, low 33°.
Pressure29.23 inHg
Wind28.7 mph NW
Humidity63%
Visibility—
Dew point37°
Fri, 3038° / 29°0.19
38 °
Lodge Grass, Friday, 30 October
Snow. High 38°, low 29°.
Pressure29.91 inHg
Wind27.1 mph NW
Humidity61%
Visibility—
Dew point23°
Sat, 3146° / 27°0
46 °
Lodge Grass, Saturday, 31 October
Overcast. High 46°, low 27°.
Pressure29.97 inHg
Wind5.9 mph S
Humidity58%
Visibility—
Dew point26°
Sun, 0153° / 35°0.01
53 °
Lodge Grass, Sunday, 1 November
Light snow. High 53°, low 35°.
Pressure29.85 inHg
Wind9.9 mph W
Humidity50%
Visibility—
Dew point28°
Mon, 0255° / 40°0.01
55 °
Lodge Grass, Monday, 2 November
Light rain. High 55°, low 40°.
Pressure29.50 inHg
Wind10.6 mph NW
Humidity44%
Visibility—
Dew point30°
Tue, 0337° / 35°0.29
37 °
Lodge Grass, Tuesday, 3 November
Snow. High 37°, low 35°.
Pressure29.74 inHg
Wind6.6 mph W
Humidity97%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0452° / 31°0.03
52 °
Lodge Grass, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low31°
Average precipitation0.03 in
Chance of precipitation18%
Record high71° (2020)
Record low4° (1995)
Thu, 0551° / 31°0.04
51 °
Lodge Grass, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high75° (2020)
Record low0° (1961)
Fri, 0650° / 29°0.05
50 °
Lodge Grass, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low29°
Average precipitation0.05 in
Chance of precipitation20%
Record high73° (2010)
Record low0° (2003)
Sat, 0749° / 29°0.04
49 °
Lodge Grass, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.04 in
Chance of precipitation23%
Record high75° (1999)
Record low6° (2017)
Sun, 0848° / 28°0.04
48 °
Lodge Grass, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.04 in
Chance of precipitation28%
Record high74° (1999)
Record low4° (2000)
Mon, 0946° / 27°0.07
46 °
Lodge Grass, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.07 in
Chance of precipitation23%
Record high68° (2001)
Record low-9° (1966)
Tue, 1046° / 26°0.06
46 °
Lodge Grass, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.06 in
Chance of precipitation28%
Record high68° (2007)
Record low-21° (1986)
Wed, 1144° / 25°0.03
44 °
Lodge Grass, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.03 in
Chance of precipitation17%
Record high66° (1999)
Record low-7° (1986)
Thu, 1247° / 25°0.03
47 °
Lodge Grass, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low25°
Average precipitation0.03 in
Chance of precipitation23%
Record high76° (1999)
Record low-11° (1986)
Fri, 1347° / 27°0.05
47 °
Lodge Grass, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.05 in
Chance of precipitation25%
Record high72° (2025)
Record low-12° (1986)
Sat, 1446° / 27°0.05
46 °
Lodge Grass, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.05 in
Chance of precipitation25%
Record high72° (2025)
Record low-4° (1978)
Sun, 1547° / 26°0.04
47 °
Lodge Grass, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low26°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (2021)
Record low-5° (1964)
Mon, 1647° / 27°0.03
47 °
Lodge Grass, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.03 in
Chance of precipitation15%
Record high66° (2001)
Record low-7° (2014)
Tue, 1746° / 26°0.06
46 °
Lodge Grass, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high65° (2020)
Record low0° (1961)
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 Lodge Grass, 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 Lodge Grass, 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.