Monthly outlook for Dillon, MT: average high 49.9°, average low 30.4°. That is 2.5° below the climate normal for October. Precipitation is expected on 5 days (about 2.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (82.5°), the coolest 16 October (13°).
49.9°/30.4°
Average high / low
−2.5°
Below normal
5 / 3
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
49.3°
55.1°
-3.2°
18 October – 27 October
51°
52°
-0.6°
28 October – 6 November
at normal
44.9°
—
October records over 66 years
81.3°3 October 2010All-time high
-8.9°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Dalys (12 mi).
Fri, 0983° / 39°0
83 °
Dillon, Friday, 9 October
Mostly clear. High 83°, low 39°.
Pressure29.62 inHg
Wind11.1 mph S
Humidity21%
Visibility6.2 mi
Dew point28°
Sat, 1062° / 42°0.03
62 °
Dillon, Saturday, 10 October
Light rain. High 62°, low 42°.
Pressure29.56 inHg
Wind6.1 mph N
Humidity42%
Visibility6.2 mi
Dew point35°
Sun, 1140° / 34°0.47
40 °
Dillon, Sunday, 11 October
Snow. High 40°, low 34°.
Pressure29.94 inHg
Wind8.6 mph NE
Humidity76%
Visibility4.6 mi
Dew point28°
Mon, 1233° / 29°0.43
33 °
Dillon, Monday, 12 October
Snow. High 33°, low 29°.
Pressure30.09 inHg
Wind5.2 mph NE
Humidity99%
Visibility—
Dew point32°
Tue, 1337° / 29°0
37 °
Dillon, Tuesday, 13 October
Overcast. High 37°, low 29°.
Pressure30.18 inHg
Wind2.7 mph SE
Humidity100%
Visibility—
Dew point31°
Wed, 1454° / 35°0.76
54 °
Dillon, Wednesday, 14 October
Snow. High 54°, low 35°.
Pressure29.59 inHg
Wind16.2 mph N
Humidity57%
Visibility—
Dew point33°
Thu, 1535° / 21°0.34
35 °
Dillon, Thursday, 15 October
Snow. High 35°, low 21°.
Pressure30.42 inHg
Wind14.2 mph N
Humidity74%
Visibility—
Dew point25°
Fri, 1632° / 13°0
32 °
Dillon, Friday, 16 October
Overcast. High 32°, low 13°.
Pressure30.71 inHg
Wind4.8 mph S
Humidity83%
Visibility—
Dew point20°
Sat, 1738° / 17°0
38 °
Dillon, Saturday, 17 October
Clear. High 38°, low 17°.
Pressure30.36 inHg
Wind6.5 mph S
Humidity79%
Visibility—
Dew point27°
Sun, 1841° / 24°0
41 °
Dillon, Sunday, 18 October
Clear. High 41°, low 24°.
Pressure30.24 inHg
Wind7 mph S
Humidity83%
Visibility—
Dew point32°
Mon, 1947° / 31°0
47 °
Dillon, Monday, 19 October
Mostly clear. High 47°, low 31°.
Pressure30.27 inHg
Wind9.2 mph S
Humidity75%
Visibility—
Dew point34°
Tue, 2055° / 35°0
55 °
Dillon, Tuesday, 20 October
Overcast. High 55°, low 35°.
Pressure30.30 inHg
Wind8.1 mph S
Humidity54%
Visibility—
Dew point32°
Wed, 2156° / 39°0
56 °
Dillon, Wednesday, 21 October
Overcast. High 56°, low 39°.
Pressure30.24 inHg
Wind14 mph NW
Humidity26%
Visibility—
Dew point19°
Thu, 2260° / 34°0
60 °
Dillon, Thursday, 22 October
Overcast. High 60°, low 34°.
Pressure30.06 inHg
Wind12.1 mph S
Humidity20%
Visibility—
Dew point8°
Fri, 2347° / 25°0.17
47 °
Dillon, Friday, 23 October
Snow. High 47°, low 25°.
Pressure29.77 inHg
Wind17.4 mph N
Humidity96%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2451° / 30°0.03
51 °
Dillon, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high51°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high65° (1992)
Record low13° (2020)
Sun, 2550° / 30°0.04
50 °
Dillon, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high50°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high65° (1999)
Record low1° (2020)
Mon, 2649° / 29°0.06
49 °
Dillon, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.06 in
Chance of precipitation28%
Record high65° (1999)
Record low-2° (2020)
Tue, 2749° / 28°0.03
49 °
Dillon, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low28°
Average precipitation0.03 in
Chance of precipitation15%
Record high66° (2024)
Record low-7° (1996)
Wed, 2848° / 28°0.06
48 °
Dillon, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.06 in
Chance of precipitation25%
Record high65° (1987)
Record low7° (1971)
Thu, 2946° / 27°0.04
46 °
Dillon, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.04 in
Chance of precipitation27%
Record high65° (1964)
Record low1° (1971)
Fri, 3045° / 26°0.04
45 °
Dillon, Friday, 30 October
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (1962)
Record low-9° (1991)
Sat, 3144° / 26°0.03
44 °
Dillon, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.03 in
Chance of precipitation15%
Record high63° (1988)
Record low-5° (2002)
Sun, 0144° / 26°0.03
44 °
Dillon, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.03 in
Chance of precipitation17%
Record high63° (1988)
Record low-20° (2002)
Mon, 0243° / 25°0.03
43 °
Dillon, Monday, 2 November
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.03 in
Chance of precipitation18%
Record high64° (2020)
Record low-16° (2002)
Tue, 0345° / 25°0.02
45 °
Dillon, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.02 in
Chance of precipitation10%
Record high64° (2020)
Record low-15° (1991)
Wed, 0445° / 26°0.03
45 °
Dillon, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (2020)
Record low-8° (1973)
Thu, 0545° / 25°0.04
45 °
Dillon, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (2020)
Record low-12° (1961)
Fri, 0643° / 25°0.03
43 °
Dillon, Friday, 6 November
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.03 in
Chance of precipitation20%
Record high62° (1999)
Record low-11° (1971)
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 Dillon, 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 Dillon, 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.