Monthly outlook for Judith Gap, MT: average high 54.7°, average low 36.5°. That is 0.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (77.6°), the coolest 13 October (22.8°).
54.7°/36.5°
Average high / low
+0.8°
Above normal
4 / 4
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
50.4°
53.6°
-1.7°
19 October – 28 October
61.9°
51.2°
+5.9°
29 October – 7 November
at normal
44.7°
—
October records over 66 years
82.9°1 October 2011All-time high
-6.5°31 October 2002All-time low
Sat, 1055° / 35°0.46
55 °
Judith Gap, Saturday, 10 October
Rain. High 55°, low 35°.
Pressure29.65 inHg
Wind8.9 mph N
Humidity55%
Visibility6.2 mi
Dew point36°
Sun, 1137° / 30°0.59
37 °
Judith Gap, Sunday, 11 October
Snow. High 37°, low 30°.
Pressure30.06 inHg
Wind8.7 mph NW
Humidity97%
Visibility0.2 mi
Dew point33°
Mon, 1230° / 25°0.41
30 °
Judith Gap, Monday, 12 October
Snow. High 30°, low 25°.
Pressure30.18 inHg
Wind7.8 mph N
Humidity99%
Visibility1.7 mi
Dew point28°
Tue, 1338° / 23°0
38 °
Judith Gap, Tuesday, 13 October
Partly cloudy. High 38°, low 23°.
Pressure30.06 inHg
Wind1.8 mph N
Humidity76%
Visibility1.8 mi
Dew point28°
Wed, 1442° / 29°0
42 °
Judith Gap, Wednesday, 14 October
Overcast. High 42°, low 29°.
Pressure30.15 inHg
Wind7.5 mph S
Humidity73%
Visibility—
Dew point30°
Thu, 1543° / 31°0.06
43 °
Judith Gap, Thursday, 15 October
Snow. High 43°, low 31°.
Pressure30.36 inHg
Wind15.6 mph N
Humidity62%
Visibility—
Dew point28°
Fri, 1647° / 28°0
47 °
Judith Gap, Friday, 16 October
Clear. High 47°, low 28°.
Pressure30.62 inHg
Wind12.9 mph N
Humidity37%
Visibility—
Dew point15°
Sat, 1766° / 33°0
66 °
Judith Gap, Saturday, 17 October
Overcast. High 66°, low 33°.
Pressure30.09 inHg
Wind11.2 mph NW
Humidity25%
Visibility—
Dew point21°
Sun, 1868° / 48°0
68 °
Judith Gap, Sunday, 18 October
Overcast. High 68°, low 48°.
Pressure30.03 inHg
Wind13.5 mph W
Humidity21%
Visibility—
Dew point22°
Mon, 1972° / 48°0
72 °
Judith Gap, Monday, 19 October
Clear. High 72°, low 48°.
Pressure29.94 inHg
Wind10.9 mph SW
Humidity21%
Visibility—
Dew point24°
Tue, 2071° / 47°0
71 °
Judith Gap, Tuesday, 20 October
Clear. High 71°, low 47°.
Pressure29.91 inHg
Wind13 mph W
Humidity20%
Visibility—
Dew point24°
Wed, 2156° / 40°0
56 °
Judith Gap, Wednesday, 21 October
Clear. High 56°, low 40°.
Pressure30.21 inHg
Wind11.4 mph S
Humidity59%
Visibility—
Dew point35°
Thu, 2268° / 43°0.01
68 °
Judith Gap, Thursday, 22 October
Light rain. High 68°, low 43°.
Pressure29.77 inHg
Wind20.7 mph SW
Humidity39%
Visibility—
Dew point31°
Fri, 2350° / 41°0
50 °
Judith Gap, Friday, 23 October
Overcast. High 50°, low 41°.
Pressure29.88 inHg
Wind16.4 mph N
Humidity54%
Visibility—
Dew point32°
Sat, 2453° / 37°0
53 °
Judith Gap, Saturday, 24 October
Mostly clear. High 53°, low 37°.
Pressure30.03 inHg
Wind8.4 mph N
Humidity40%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2550° / 31°0.04
50 °
Judith Gap, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high67° (2017)
Record low-4° (2020)
Mon, 2649° / 31°0.06
49 °
Judith Gap, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.06 in
Chance of precipitation35%
Record high66° (1960)
Record low-3° (2020)
Tue, 2748° / 29°0.04
48 °
Judith Gap, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation28%
Record high67° (2024)
Record low-5° (2023)
Wed, 2848° / 29°0.05
48 °
Judith Gap, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.05 in
Chance of precipitation30%
Record high67° (2017)
Record low-1° (2023)
Thu, 2946° / 28°0.04
46 °
Judith Gap, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation35%
Record high67° (1968)
Record low2° (1991)
Fri, 3046° / 27°0.03
46 °
Judith Gap, Friday, 30 October
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.03 in
Chance of precipitation23%
Record high64° (1987)
Record low3° (1991)
Sat, 3145° / 28°0.05
45 °
Judith Gap, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.05 in
Chance of precipitation18%
Record high64° (1987)
Record low-7° (2002)
Sun, 0145° / 28°0.04
45 °
Judith Gap, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.04 in
Chance of precipitation17%
Record high65° (2025)
Record low-2° (1991)
Mon, 0245° / 27°0.02
45 °
Judith Gap, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation20%
Record high64° (1981)
Record low-10° (1991)
Tue, 0345° / 28°0.04
45 °
Judith Gap, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.04 in
Chance of precipitation25%
Record high64° (1962)
Record low3° (1991)
Wed, 0445° / 28°0.05
45 °
Judith Gap, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.05 in
Chance of precipitation25%
Record high62° (2001)
Record low5° (1967)
Thu, 0544° / 28°0.06
44 °
Judith Gap, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation32%
Record high65° (1980)
Record low-1° (2003)
Fri, 0644° / 27°0.03
44 °
Judith Gap, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.03 in
Chance of precipitation22%
Record high64° (2010)
Record low2° (2017)
Sat, 0743° / 27°0.03
43 °
Judith Gap, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.03 in
Chance of precipitation30%
Record high64° (1999)
Record low3° (2017)
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 Judith Gap, 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 Judith Gap, 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.