Dayton, MT Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Dayton, MT.

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Current Conditions — Dayton, MT

KALISPELL (KGPI)

Mostly Cloudy

48.2 F
Humidity:40%
Wind Speed: 4.6 mph
Barometer:29.89 in
Dewpoint:24.8 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:46.4 F
Apr 27 2026, 04:40 PM MDT
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5-Day Forecast — Dayton, MT

Monday

High 53 °F
Chance of Rain
Monday
Night
Low 35 °F
Rain Likely
Tuesday

High 55 °F
Forecast Missing
Tuesday
Night
Low 39 °F
Forecast Missing
Wednesday

High 60 °F
Forecast Missing
Wednesday
Night
Low 37 °F
Forecast Missing
Thursday

High 66 °F
Forecast Missing
Thursday
Night
Low 41 °F
Forecast Missing
Friday

High 69 °F
Forecast Missing

Detailed Forecast — Dayton, MT

Monday
Chance of Rain. High near 53°F. Wind around 2 mph, with gusts as high as 7 mph.
Monday Night
Rain Likely. Low around 35°F. Wind 1 to 2 mph, with gusts as high as 5 mph.
Tuesday
Rain Likely. High near 55°F. Wind 2 to 5 mph, with gusts as high as 10 mph.
Tuesday Night
Forecast Missing. Low around 39°F. Wind 1 to 3 mph, with gusts as high as 10 mph.
Wednesday
Forecast Missing. High near 60°F. Wind 0 to 2 mph, with gusts as high as 7 mph.
Wednesday Night
Forecast Missing. Low around 37°F. Wind around 1 mph, with gusts as high as 3 mph.
Thursday
Forecast Missing. High near 66°F. Wind around 2 mph, with gusts as high as 8 mph.
Thursday Night
Forecast Missing. Low around 41°F. Wind 0 to 1 mph, with gusts as high as 3 mph.
Friday
Forecast Missing. High near 69°F. Wind around 3 mph, with gusts as high as 9 mph.
Friday Night
Forecast Missing. Low around 42°F. Wind 1 to 2 mph, with gusts as high as 3 mph.
Saturday
Forecast Missing. High near 66°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Saturday Night
Forecast Missing. Low around 42°F. Wind around 3 mph, with gusts as high as 7 mph.
Sunday
Forecast Missing. High near 64°F. Wind 3 to 5 mph, with gusts as high as 10 mph.
MT Radar
Current Radar • MT
Day 1 Outlook • April 27, 2026

Observation History — Dayton, MT

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
04:40 PM MDT 4.6 10.00 Mostly Cloudy -- 48.2 24.8 40% 46.4 NA 29.89 1012.2
04:30 PM MDT 0.0 10.00 Mostly Clear -- 48.2 24.8 40% NA NA 29.89 1012.2
04:25 PM MDT 5.7 10.00 Clear -- 48.2 26.6 43% 45.7 NA 29.89 1012.2
04:20 PM MDT SW 3.4 10.00 Clear -- 48.2 24.8 40% 47.3 NA 29.89 1012.2
04:15 PM MDT SW 6.9 10.00 Clear -- 51.8 26.6 37% NA NA 29.89 1012.2
04:05 PM MDT S 5.7 10.00 Clear -- 50.0 26.6 40% NA NA 29.89 1012.2
04:00 PM MDT S 6.9 10.00 Clear -- 50.0 26.6 40% NA NA 29.89 1012.2
03:50 PM MDT S 8.1 10.00 Clear -- 50.0 28.4 43% NA NA 29.89 1012.2
03:45 PM MDT S 10.4 10.00 Clear -- 50.0 28.4 43% NA NA 29.89 1012.2
03:35 PM MDT S 9.2 10.00 Clear -- 50.0 26.6 40% NA NA 29.89 1012.2
03:25 PM MDT SE 4.6 10.00 Clear -- 51.8 26.6 37% NA NA 29.90 1012.5
03:20 PM MDT E 4.6 10.00 Clear -- 51.8 28.4 40% NA NA 29.90 1012.5
03:15 PM MDT 0.0 10.00 Clear -- 48.2 26.6 43% NA NA 29.90 1012.5
03:10 PM MDT NE 4.6 10.00 Clear -- 48.2 26.6 43% 46.4 NA 29.90 1012.5
03:05 PM MDT E 3.4 10.00 Clear -- 48.2 26.6 43% 47.3 NA 29.90 1012.5
03:00 PM MDT E 4.6 10.00 Clear -- 48.2 26.6 43% 46.4 NA 29.91 1012.9
02:50 PM MDT 0.0 10.00 Clear -- 46.4 26.6 46% NA NA 29.91 1012.9
02:45 PM MDT S 4.6 10.00 Clear -- 46.4 26.6 46% 44.2 NA 29.91 1012.9
02:35 PM MDT 0.0 10.00 Clear -- 46.4 26.6 46% NA NA 29.92 1013.2
02:30 PM MDT 0.0 10.00 Clear -- 46.4 26.6 46% NA NA 29.92 1013.2
02:25 PM MDT S 5.7 10.00 Clear -- 46.4 26.6 46% 43.5 NA 29.92 1013.2
02:20 PM MDT 5.7 10.00 Clear -- 46.4 26.6 46% 43.5 NA 29.92 1013.2
02:05 PM MDT 0.0 10.00 Clear -- 46.4 26.6 46% NA NA 29.93 1013.5
01:55 PM MDT SW 5.7 10.00 Mostly Clear -- 46.4 26.6 46% 43.5 NA 29.93 1013.5

Regional Weather Observation

KALISPELL (KGPI)

Mostly Cloudy
48.2 F

PLAINS (KS34)

Mostly Clear
48.2 F

MULLAN PASS (KMLP)

Mostly Cloudy
35.6 F

MISSOULA (KMSO)

Cloudy
46.4 F

BONNERS FERRY (K65S)

Partly Cloudy
55.4 F

WALL/SANDPOINT (KSZT)

Mostly Cloudy
NULL F
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