Monthly outlook for Jimtown, MT: average high 58.1°, average low 38.4°. That is 3.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (74°), the coolest 25 October (32.7°).
58.1°/38.4°
Average high / low
+3.4°
Above normal
1 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
59.1°
53.8°
+3°
31 October – 9 November
56.5°
48.2°
+4.6°
10 November – 19 November
at normal
44.1°
—
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).
Thu, 2274° / 45°0
74 °
Jimtown, Thursday, 22 October
Clear. High 74°, low 45°.
Pressure29.91 inHg
Wind1.9 mph NE
Humidity37%
Visibility6.2 mi
Dew point43°
Fri, 2372° / 41°0
72 °
Jimtown, Friday, 23 October
Clear. High 72°, low 41°.
Pressure29.56 inHg
Wind8.9 mph W
Humidity41%
Visibility6.2 mi
Dew point47°
Sat, 2447° / 37°0
47 °
Jimtown, Saturday, 24 October
Clear. High 47°, low 37°.
Pressure30.45 inHg
Wind3.3 mph NW
Humidity61%
Visibility6.2 mi
Dew point26°
Sun, 2547° / 33°0
47 °
Jimtown, Sunday, 25 October
Overcast. High 47°, low 33°.
Pressure30.30 inHg
Wind6 mph N
Humidity60%
Visibility—
Dew point30°
Mon, 2646° / 37°0
46 °
Jimtown, Monday, 26 October
Overcast. High 46°, low 37°.
Pressure30.50 inHg
Wind6 mph E
Humidity65%
Visibility—
Dew point31°
Tue, 2764° / 36°0
64 °
Jimtown, Tuesday, 27 October
Overcast. High 64°, low 36°.
Pressure29.94 inHg
Wind10.7 mph N
Humidity39%
Visibility—
Dew point32°
Wed, 2849° / 37°0.01
49 °
Jimtown, Wednesday, 28 October
Light snow. High 49°, low 37°.
Pressure30.30 inHg
Wind11.2 mph N
Humidity53%
Visibility—
Dew point28°
Thu, 2959° / 37°0
59 °
Jimtown, Thursday, 29 October
Partly cloudy. High 59°, low 37°.
Pressure30.03 inHg
Wind9.1 mph SE
Humidity42%
Visibility—
Dew point30°
Fri, 3062° / 42°0
62 °
Jimtown, Friday, 30 October
Overcast. High 62°, low 42°.
Pressure29.56 inHg
Wind5.4 mph S
Humidity42%
Visibility—
Dew point33°
Sat, 3150° / 37°0.19
50 °
Jimtown, Saturday, 31 October
Light rain. High 50°, low 37°.
Pressure29.56 inHg
Wind18.6 mph NW
Humidity72%
Visibility—
Dew point38°
Sun, 0152° / 33°0
52 °
Jimtown, Sunday, 1 November
Clear. High 52°, low 33°.
Pressure30.09 inHg
Wind8.4 mph SW
Humidity38%
Visibility—
Dew point21°
Mon, 0258° / 39°0
58 °
Jimtown, Monday, 2 November
Overcast. High 58°, low 39°.
Pressure30.09 inHg
Wind6.8 mph NW
Humidity26%
Visibility—
Dew point19°
Tue, 0360° / 39°0
60 °
Jimtown, Tuesday, 3 November
Partly cloudy. High 60°, low 39°.
Pressure30.06 inHg
Wind10.6 mph SE
Humidity27%
Visibility—
Dew point19°
Wed, 0459° / 39°0
59 °
Jimtown, Wednesday, 4 November
Partly cloudy. High 59°, low 39°.
Pressure29.80 inHg
Wind5.5 mph S
Humidity26%
Visibility—
Dew point19°
Thu, 0561° / 42°0.02
61 °
Jimtown, Thursday, 5 November
Light rain. High 61°, low 42°.
Pressure29.44 inHg
Wind20.5 mph W
Humidity23%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 1645° / 27°0.03
45 °
Jimtown, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.03 in
Chance of precipitation13%
Record high66° (2001)
Record low2° (1964)
Tue, 1744° / 26°0.04
44 °
Jimtown, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.04 in
Chance of precipitation22%
Record high64° (1981)
Record low6° (2000)
Wed, 1844° / 26°0.05
44 °
Jimtown, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.05 in
Chance of precipitation30%
Record high65° (2008)
Record low-2° (2022)
Thu, 1941° / 26°0.03
41 °
Jimtown, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.03 in
Chance of precipitation18%
Record high63° (2003)
Record low-5° (2011)
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.