Monthly outlook for Jimtown, MT: average high 64.9°, average low 44.1°. That is 5.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (78.4°), the coolest 1 November (38.3°).
64.9°/44.1°
Average high / low
+5.9°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
66.5°
56.5°
+5.6°
27 October – 5 November
62.1°
50°
+6.7°
6 November – 15 November
at normal
45.4°
—
October records over 66 years
89.8°1 October 2011All-time high
-16.1°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Lame Deer (6 mi).
Sun, 1866° / 43°0
66 °
Jimtown, Sunday, 18 October
Partly cloudy. High 66°, low 43°.
Pressure30.15 inHg
Wind6.4 mph NE
Humidity36%
Visibility6.2 mi
Dew point32°
Mon, 1969° / 41°0
69 °
Jimtown, Monday, 19 October
Clear. High 69°, low 41°.
Pressure29.97 inHg
Wind6 mph S
Humidity44%
Visibility6.2 mi
Dew point40°
Tue, 2070° / 42°0
70 °
Jimtown, Tuesday, 20 October
Clear. High 70°, low 42°.
Pressure29.97 inHg
Wind4 mph NW
Humidity36%
Visibility6.2 mi
Dew point40°
Wed, 2167° / 41°0
67 °
Jimtown, Wednesday, 21 October
Clear. High 67°, low 41°.
Pressure30.12 inHg
Wind5.5 mph E
Humidity56%
Visibility6.2 mi
Dew point45°
Thu, 2272° / 45°0
72 °
Jimtown, Thursday, 22 October
Clear. High 72°, low 45°.
Pressure29.85 inHg
Wind5.8 mph N
Humidity43%
Visibility—
Dew point43°
Fri, 2363° / 51°0
63 °
Jimtown, Friday, 23 October
Light rain. High 63°, low 51°.
Pressure29.88 inHg
Wind17.5 mph N
Humidity53%
Visibility—
Dew point42°
Sat, 2451° / 43°0.09
51 °
Jimtown, Saturday, 24 October
Light rain. High 51°, low 43°.
Pressure30.27 inHg
Wind11.3 mph SE
Humidity73%
Visibility—
Dew point39°
Sun, 2559° / 41°0
59 °
Jimtown, Sunday, 25 October
Clear. High 59°, low 41°.
Pressure30.18 inHg
Wind9.2 mph NW
Humidity54%
Visibility—
Dew point37°
Mon, 2670° / 45°0
70 °
Jimtown, Monday, 26 October
Clear. High 70°, low 45°.
Pressure30.00 inHg
Wind6.8 mph S
Humidity33%
Visibility—
Dew point32°
Tue, 2770° / 47°0
70 °
Jimtown, Tuesday, 27 October
Partly cloudy. High 70°, low 47°.
Pressure29.74 inHg
Wind8.5 mph S
Humidity27%
Visibility—
Dew point27°
Wed, 2869° / 55°0
69 °
Jimtown, Wednesday, 28 October
Overcast. High 69°, low 55°.
Pressure29.56 inHg
Wind24.5 mph NW
Humidity30%
Visibility—
Dew point32°
Thu, 2959° / 48°0.02
59 °
Jimtown, Thursday, 29 October
Light rain. High 59°, low 48°.
Pressure29.59 inHg
Wind20 mph W
Humidity41%
Visibility—
Dew point35°
Fri, 3053° / 42°0
53 °
Jimtown, Friday, 30 October
Overcast. High 53°, low 42°.
Pressure29.65 inHg
Wind20.1 mph W
Humidity24%
Visibility—
Dew point15°
Sat, 3165° / 41°0
65 °
Jimtown, Saturday, 31 October
Partly cloudy. High 65°, low 41°.
Pressure29.50 inHg
Wind18.2 mph SW
Humidity19%
Visibility—
Dew point16°
Sun, 0157° / 38°0
57 °
Jimtown, Sunday, 1 November
Clear. High 57°, low 38°.
Pressure29.85 inHg
Wind33.9 mph W
Humidity21%
Visibility—
Dew point11°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0249° / 30°0.03
49 °
Jimtown, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.03 in
Chance of precipitation23%
Record high74° (1965)
Record low-7° (1995)
Tue, 0349° / 30°0.02
49 °
Jimtown, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high68° (2020)
Record low-14° (1991)
Wed, 0450° / 31°0.03
50 °
Jimtown, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation13%
Record high71° (1975)
Record low6° (1995)
Thu, 0549° / 31°0.04
49 °
Jimtown, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high73° (2020)
Record low4° (1961)
Fri, 0648° / 29°0.04
48 °
Jimtown, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (2010)
Record low8° (1991)
Sat, 0748° / 29°0.03
48 °
Jimtown, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation27%
Record high72° (1999)
Record low1° (1991)
Sun, 0846° / 28°0.04
46 °
Jimtown, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation23%
Record high74° (1999)
Record low3° (2000)
Mon, 0945° / 27°0.07
45 °
Jimtown, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.07 in
Chance of precipitation23%
Record high67° (2016)
Record low-4° (1966)
Tue, 1044° / 26°0.05
44 °
Jimtown, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (2007)
Record low-17° (1986)
Wed, 1143° / 25°0.02
43 °
Jimtown, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.02 in
Chance of precipitation15%
Record high67° (1990)
Record low-8° (2019)
Thu, 1245° / 25°0.03
45 °
Jimtown, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.03 in
Chance of precipitation15%
Record high75° (1999)
Record low-13° (1986)
Fri, 1345° / 27°0.04
45 °
Jimtown, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.04 in
Chance of precipitation22%
Record high70° (2025)
Record low-14° (1986)
Sat, 1445° / 27°0.03
45 °
Jimtown, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.03 in
Chance of precipitation23%
Record high72° (2025)
Record low-2° (1978)
Sun, 1545° / 27°0.02
45 °
Jimtown, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (2021)
Record low-4° (1964)
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 Jimtown, 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 Jimtown, 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.