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Day 1 Outlook • April 20, 2026
Day 2 Outlook • April 21, 2026
Day 3 Outlook • April 22, 2026
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National Weather Radar

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dBZ 5
75

Hazardous Weather Conditions

  • No active alerts for ROUNDUP, MONTANA

Current Conditions: ROUNDUP, MONTANA

N BAR RANCH (KMVH)

Mostly Clear

42.8 F
Humidity:45%
Wind Speed:W 9.2 mph
Barometer:29.91 in
Dewpoint:23.0 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:37.4 F
Apr 20 2026, 12:55 AM MDT
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5 Day Forecast for ROUNDUP, MONTANA (59072)

Monday

High 78 °F
Forecast Missing
Monday
Night
Low 46 °F
Forecast Missing
Tuesday

High 86 °F
Forecast Missing
Tuesday
Night
Low 53 °F
Forecast Missing
Wednesday

High 78 °F
Forecast Missing
Wednesday
Night
Low 37 °F
Forecast Missing
Thursday

High 48 °F
Forecast Missing
Thursday
Night
Low 30 °F
Forecast Missing
Friday

High 46 °F
Forecast Missing

Detailed Forecast for ROUNDUP, MONTANA (59072)

Monday
Slight Chance of Snow. High near 78°F. Wind 6 to 9 mph, with gusts as high as 15 mph.
Monday Night
Forecast Missing. Low around 46°F. Wind 3 to 9 mph, with gusts as high as 14 mph.
Tuesday
Forecast Missing. High near 86°F. Wind 8 to 12 mph, with gusts as high as 18 mph.
Tuesday Night
Forecast Missing. Low around 53°F. Wind 6 to 8 mph, with gusts as high as 12 mph.
Wednesday
Forecast Missing. High near 78°F. Wind 13 to 21 mph, with gusts as high as 31 mph.
Wednesday Night
Forecast Missing. Low around 37°F. Wind 23 to 26 mph, with gusts as high as 38 mph.
Thursday
Forecast Missing. High near 48°F. Wind 23 to 26 mph, with gusts as high as 43 mph.
Thursday Night
Forecast Missing. Low around 30°F. Wind 9 to 12 mph, with gusts as high as 20 mph.
Friday
Forecast Missing. High near 46°F. Wind 14 to 16 mph, with gusts as high as 26 mph.
Friday Night
Forecast Missing. Low around 26°F. Wind around 6 mph, with gusts as high as 12 mph.
Saturday
Forecast Missing. High near 46°F. Wind 9 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Forecast Missing. Low around 26°F. Wind around 5 mph, with gusts as high as 9 mph.
Sunday
Forecast Missing. High near 50°F. Wind 8 to 9 mph, with gusts as high as 16 mph.
MT Radar
Current Radar • MT
Day 1 Outlook • April 20, 2026

Observation History for ROUNDUP, MONTANA

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)
12:55 AM MDT W 9.2 10.00 Mostly Clear -- 42.8 23.0 45% 37.4 NA 29.91 1012.9
12:35 AM MDT W 11.4 10.00 Mostly Clear -- 44.6 23.0 42% 38.8 NA 29.91 1012.9
12:15 AM MDT W 5.8 10.00 Partly Cloudy -- 41.0 23.0 48% 37.0 NA 29.91 1012.9
11:55 PM MDT 0.0 10.00 Partly Cloudy -- 39.2 24.8 56% NA NA 29.92 1013.2
11:35 PM MDT W 3.4 10.00 Partly Cloudy -- 39.2 24.8 56% 37.0 NA 29.92 1013.2
11:15 PM MDT 0.0 10.00 Clear -- 37.4 24.8 60% NA NA 29.92 1013.2
10:55 PM MDT W 4.7 10.00 Clear -- 41.0 24.8 52% 37.9 NA 29.94 1013.6
10:35 PM MDT 4.7 10.00 Clear -- 41.0 26.6 56% 37.9 NA 29.94 1013.6
10:15 PM MDT W 9.2 G 16.1 10.00 Clear -- 46.4 26.6 46% 41.9 NA 29.94 1013.9
09:55 PM MDT 4.7 10.00 Clear -- NULL 26.6 % NA NA 29.94 1013.9
09:35 PM MDT W 6.9 10.00 Clear -- 44.6 26.6 49% 40.6 NA 29.94 1013.9
09:15 PM MDT W 5.8 10.00 Clear -- NULL 26.6 % NA NA 29.94 1013.9
08:55 PM MDT NW 5.8 10.00 Mostly Clear -- NULL 26.6 % NA NA 29.94 1013.9
08:35 PM MDT 3.4 10.00 Mostly Cloudy -- 51.8 26.6 37% NA NA 29.94 1013.9
08:15 PM MDT 0.0 10.00 Partly Cloudy -- 51.8 26.6 37% NA NA 29.94 1013.9
07:55 PM MDT S 4.7 10.00 Clear -- 53.6 26.6 35% NA NA 29.94 1013.9
07:35 PM MDT E 6.9 10.00 Clear -- 57.2 26.6 31% NA NA 29.94 1013.9
07:15 PM MDT 4.7 10.00 Clear -- 59.0 26.6 29% NA NA 29.94 1013.9
06:55 PM MDT 6.9 10.00 Clear -- 60.8 24.8 25% NA NA 29.94 1013.9
06:35 PM MDT NE 8.1 10.00 Clear -- 60.8 24.8 25% NA NA 29.94 1013.9
06:15 PM MDT NE 9.2 10.00 Clear -- 62.6 24.8 24% NA NA 29.94 1013.9
05:55 PM MDT NE 10.3 10.00 Clear -- 62.6 24.8 24% NA NA 29.94 1013.9
05:35 PM MDT NE 10.3 10.00 Clear -- 62.6 24.8 24% NA NA 29.94 1013.9
05:15 PM MDT NE 11.4 10.00 Clear -- 64.4 19.4 18% NA NA 29.95 1014.2

Regional Weather Observation

N BAR RANCH (KMVH)

Mostly Clear
42.8 F

(KLWT)


F

BILLINGS (KBIL)

NULL
55.4 F

ECHO (K1EM)

Mostly Cloudy
NULL F

DELTA (K1DM)

Mostly Cloudy
47.1 F

BIG TIMBER (K6S0)

Clear
48.2 F
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