As of 16:35 MDT

Weather in Dayton, MT

63°Current weather

Dayton, Friday, 16 October, 16:35

Partly cloudy. Feels like 61°. High 63°, low 33°.

Pressure30.30 inHg
Wind3.1 mph S
Humidity54%
Visibility6.2 mi
Dew point46°

Monthly outlook for Dayton, MT: average high 53.7°, average low 38.2°. That is 1.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 7 days and 1.8 inches. The warmest day looks like 17 October (68.2°), the coolest 26 October (28.3°).

53.7°/38.2°
Average high / low
+1.9°
Above normal
2 / 7
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October57.3°52.5°+2.7°
26 October – 4 November47.8°46.1°+0.9°
5 November – 14 Novemberat normal42.1°—

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).

Sat, 1768° / 37°0Partly cloudy
68 °Partly cloudy

Dayton, Saturday, 17 October

Partly cloudy. High 68°, low 37°.

Pressure30.03 inHg
Wind9.7 mph SW
Humidity41%
Visibility6.2 mi
Dew point34°
Sun, 1854° / 35°0Clear
54 °Clear

Dayton, Sunday, 18 October

Clear. High 54°, low 35°.

Pressure30.15 inHg
Wind2.6 mph SE
Humidity51%
Visibility6.2 mi
Dew point33°
Mon, 1959° / 42°0Overcast
59 °Overcast

Dayton, Monday, 19 October

Overcast. High 59°, low 42°.

Pressure29.85 inHg
Wind2 mph E
Humidity57%
Visibility6.2 mi
Dew point39°
Tue, 2059° / 47°0Overcast
59 °Overcast

Dayton, Tuesday, 20 October

Overcast. High 59°, low 47°.

Pressure30.00 inHg
Wind3.1 mph NE
Humidity54%
Visibility6.2 mi
Dew point39°
Wed, 2159° / 44°0Mostly clear
59 °Mostly clear

Dayton, Wednesday, 21 October

Mostly clear. High 59°, low 44°.

Pressure30.03 inHg
Wind3.4 mph S
Humidity64%
Visibility—
Dew point42°
Thu, 2259° / 47°0Overcast
59 °Overcast

Dayton, Thursday, 22 October

Overcast. High 59°, low 47°.

Pressure29.80 inHg
Wind4.6 mph E
Humidity50%
Visibility—
Dew point37°
Fri, 2354° / 42°0Overcast
54 °Overcast

Dayton, Friday, 23 October

Overcast. High 54°, low 42°.

Pressure30.06 inHg
Wind8.5 mph N
Humidity37%
Visibility—
Dew point24°
Sat, 2450° / 35°0Overcast
50 °Overcast

Dayton, Saturday, 24 October

Overcast. High 50°, low 35°.

Pressure30.39 inHg
Wind7.1 mph N
Humidity36%
Visibility—
Dew point18°
Sun, 2548° / 29°0Clear
48 °Clear

Dayton, Sunday, 25 October

Clear. High 48°, low 29°.

Pressure30.36 inHg
Wind2.8 mph SE
Humidity33%
Visibility—
Dew point14°
Mon, 2649° / 28°0Clear
49 °Clear

Dayton, Monday, 26 October

Clear. High 49°, low 28°.

Pressure30.21 inHg
Wind3.6 mph E
Humidity29%
Visibility—
Dew point11°
Tue, 2751° / 33°0Overcast
51 °Overcast

Dayton, Tuesday, 27 October

Overcast. High 51°, low 33°.

Pressure29.74 inHg
Wind5.1 mph N
Humidity36%
Visibility—
Dew point18°
Wed, 2846° / 39°0.04Light rain
46 °Light rain

Dayton, Wednesday, 28 October

Light rain. High 46°, low 39°.

Pressure29.80 inHg
Wind6.1 mph N
Humidity70%
Visibility—
Dew point33°
Thu, 2943° / 41°0.03Light rain
43 °Light rain

Dayton, Thursday, 29 October

Light rain. High 43°, low 41°.

Pressure30.15 inHg
Wind6.5 mph S
Humidity87%
Visibility—
Dew point39°
Fri, 3050° / 37°0Mostly clear
50 °Mostly clear

Dayton, Friday, 30 October

Mostly clear. High 50°, low 37°.

Pressure30.03 inHg
Wind7.4 mph SW
Humidity65%
Visibility—
Dew point34°
Sat, 3148° / 42°0.08Light rain
48 °Light rain

Dayton, Saturday, 31 October

Light rain. High 48°, low 42°.

Pressure29.77 inHg
Wind13.6 mph S
Humidity60%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1441° / 34°0.13Climate normal
41 °Climate normal

Dayton, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high41°
Average low34°
Average precipitation0.13 in
Chance of precipitation53%
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.