As of 09:19 MDT

Weather in Dayton, MT

40°Current weather

Dayton, Thursday, 15 October, 09:19

Partly cloudy. Feels like 36°. High 56°, low 36°.

Pressure30.62 inHg
Wind4.8 mph NE
Humidity75%
Visibility1.7 mi
Dew point33°

Monthly outlook for Dayton, MT: average high 49.7°, average low 37.1°. That is 0.7° below the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 7 days and 1.7 inches. The warmest day looks like 17 October (63°), the coolest 30 October (24.8°).

49.7°/37.1°
Average high / low
−0.7°
Below normal
3 / 7
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October55.8°52.8°+1.7°
25 October – 3 November39.4°46.7°-4°
4 November – 13 Novemberat normal42.5°—

October records over 66 years

80.8°1 October 1992All-time high
13.8°28 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Woods Bay (14 mi).

Fri, 1662° / 35°0Overcast
62 °Overcast

Dayton, Friday, 16 October

Overcast. High 62°, low 35°.

Pressure30.42 inHg
Wind4.1 mph S
Humidity44%
Visibility6.2 mi
Dew point33°
Sat, 1763° / 43°0Overcast
63 °Overcast

Dayton, Saturday, 17 October

Overcast. High 63°, low 43°.

Pressure30.00 inHg
Wind8.2 mph SW
Humidity41%
Visibility6.2 mi
Dew point34°
Sun, 1854° / 42°0Clear
54 °Clear

Dayton, Sunday, 18 October

Clear. High 54°, low 42°.

Pressure30.09 inHg
Wind3 mph SE
Humidity54%
Visibility6.2 mi
Dew point35°
Mon, 1961° / 43°0Overcast
61 °Overcast

Dayton, Monday, 19 October

Overcast. High 61°, low 43°.

Pressure29.85 inHg
Wind3 mph S
Humidity55%
Visibility—
Dew point38°
Tue, 2060° / 49°0Overcast
60 °Overcast

Dayton, Tuesday, 20 October

Overcast. High 60°, low 49°.

Pressure29.97 inHg
Wind2.1 mph SE
Humidity61%
Visibility—
Dew point42°
Wed, 2157° / 46°0.25Rain
57 °Rain

Dayton, Wednesday, 21 October

Rain. High 57°, low 46°.

Pressure29.77 inHg
Wind4.3 mph S
Humidity51%
Visibility—
Dew point36°
Thu, 2255° / 44°0Overcast
55 °Overcast

Dayton, Thursday, 22 October

Overcast. High 55°, low 44°.

Pressure29.83 inHg
Wind7.5 mph SW
Humidity63%
Visibility—
Dew point40°
Fri, 2347° / 37°0.03Light rain
47 °Light rain

Dayton, Friday, 23 October

Light rain. High 47°, low 37°.

Pressure30.15 inHg
Wind10.7 mph SW
Humidity50%
Visibility—
Dew point27°
Sat, 2444° / 32°0Overcast
44 °Overcast

Dayton, Saturday, 24 October

Overcast. High 44°, low 32°.

Pressure30.30 inHg
Wind6.4 mph SW
Humidity65%
Visibility—
Dew point29°
Sun, 2545° / 36°0Overcast
45 °Overcast

Dayton, Sunday, 25 October

Overcast. High 45°, low 36°.

Pressure30.12 inHg
Wind22.9 mph NE
Humidity46%
Visibility—
Dew point24°
Mon, 2645° / 32°0Mostly clear
45 °Mostly clear

Dayton, Monday, 26 October

Mostly clear. High 45°, low 32°.

Pressure30.09 inHg
Wind8.7 mph N
Humidity54%
Visibility—
Dew point23°
Tue, 2737° / 33°0.26Snow
37 °Snow

Dayton, Tuesday, 27 October

Snow. High 37°, low 33°.

Pressure29.85 inHg
Wind7 mph N
Humidity93%
Visibility—
Dew point34°
Wed, 2837° / 34°0.37Snow
37 °Snow

Dayton, Wednesday, 28 October

Snow. High 37°, low 34°.

Pressure29.83 inHg
Wind7.3 mph S
Humidity100%
Visibility—
Dew point36°
Thu, 2936° / 26°0.03Light rain
36 °Light rain

Dayton, Thursday, 29 October

Light rain. High 36°, low 26°.

Pressure30.00 inHg
Wind6.5 mph SW
Humidity94%
Visibility—
Dew point32°
Fri, 3036° / 25°0Overcast
36 °Overcast

Dayton, Friday, 30 October

Overcast. High 36°, low 25°.

Pressure30.30 inHg
Wind6.8 mph SW
Humidity87%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3145° / 37°0.13Climate normal
45 °Climate normal

Dayton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high45°
Average low37°
Average precipitation0.13 in
Chance of precipitation52%
Record high60° (2008)
Record low14° (2003)
Sun, 0145° / 36°0.12Climate normal
45 °Climate normal

Dayton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high45°
Average low36°
Average precipitation0.12 in
Chance of precipitation47%
Record high61° (1988)
Record low13° (1991)
Mon, 0245° / 36°0.14Climate normal
45 °Climate normal

Dayton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high45°
Average low36°
Average precipitation0.14 in
Chance of precipitation47%
Record high59° (1981)
Record low11° (1991)
Tue, 0345° / 37°0.11Climate normal
45 °Climate normal

Dayton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high45°
Average low37°
Average precipitation0.11 in
Chance of precipitation47%
Record high58° (2020)
Record low20° (1973)
Wed, 0445° / 37°0.15Climate normal
45 °Climate normal

Dayton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high45°
Average low37°
Average precipitation0.15 in
Chance of precipitation55%
Record high57° (2020)
Record low17° (1973)
Thu, 0544° / 36°0.13Climate normal
44 °Climate normal

Dayton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high44°
Average low36°
Average precipitation0.13 in
Chance of precipitation60%
Record high58° (2020)
Record low19° (1973)
Fri, 0643° / 35°0.15Climate normal
43 °Climate normal

Dayton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high43°
Average low35°
Average precipitation0.15 in
Chance of precipitation63%
Record high59° (2010)
Record low15° (1973)
Sat, 0743° / 35°0.16Climate normal
43 °Climate normal

Dayton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high43°
Average low35°
Average precipitation0.16 in
Chance of precipitation58%
Record high56° (1978)
Record low18° (2022)
Sun, 0843° / 34°0.12Climate normal
43 °Climate normal

Dayton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°
Average low34°
Average precipitation0.12 in
Chance of precipitation58%
Record high55° (2016)
Record low16° (1986)
Mon, 0942° / 33°0.12Climate normal
42 °Climate normal

Dayton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high42°
Average low33°
Average precipitation0.12 in
Chance of precipitation53%
Record high57° (2016)
Record low8° (1986)
Tue, 1041° / 33°0.11Climate normal
41 °Climate normal

Dayton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high41°
Average low33°
Average precipitation0.11 in
Chance of precipitation55%
Record high57° (2016)
Record low10° (1986)
Wed, 1141° / 33°0.12Climate normal
41 °Climate normal

Dayton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high41°
Average low33°
Average precipitation0.12 in
Chance of precipitation47%
Record high55° (2016)
Record low8° (2014)
Thu, 1242° / 34°0.13Climate normal
42 °Climate normal

Dayton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°
Average low34°
Average precipitation0.13 in
Chance of precipitation50%
Record high58° (1999)
Record low10° (1986)
Fri, 1342° / 34°0.09Climate normal
42 °Climate normal

Dayton, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°
Average low34°
Average precipitation0.09 in
Chance of precipitation57%
Record high58° (2025)
Record low15° (2014)

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 Dayton, 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 Dayton, 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.