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Sumatra MT Weather - Overcast - 68°F
Overcast
68°F
Updated 5:13 am
Feels Like 55°F
Humidity 72%
Wind WNW 7 mph
Barometer  29.75 in
Dew Point 59°F
Sumatra MT Weather - Overcast - 20°C
Overcast
20°C
Updated 5:13 am
Feels Like 13°C
Humidity 72%
Wind WNW 11 km/h
Barometer  100.7 kPa
Dew Point 15°C
Sumatra, MT Weather and Current Conditionssumatra mt weather forecast

Sumatra, MT Weather Forecast

Sumatra Montana WeatherSumatra, Montana Weather Weather Forecast
14 day API Sumatra, MT weather forecast. Note. Our 7-day weather forecast for Sumatra, Montana is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Sumatra, MT Weather Forecast Dated: 513 AM Mon Sep 07 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. comfortable humidity and no major pressure swings will dominate.

Monday, September 7, 2026

Mid-Morning
Sumatra Weather - 2026-09-07 - Morning - Rain Showers
62°F 17°C
Rain Showers
Mid-Afternoon
Sumatra Weather - 2026-09-07 - Afternoon - Scattered Showers
77°F 25°C
Scattered Showers
Early-Evening
Sumatra Weather - 2026-09-07 - Evening - Scattered Showers
69°F 21°C
Scattered Showers
Pleasant near 77°F 25°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds out of the SW at 12 mph 19 km/h. Gusts up to 25 mph 40 km/h.

Tuesday, September 8, 2026

Mid-Morning
Sumatra Weather - 2026-09-08 - Morning - Sunny
62°F 16°C
Sunny
Mid-Afternoon
Sumatra Weather - 2026-09-08 - Afternoon - Nearby Thunderstorms
73°F 23°C
Nearby Thunderstorms
Early-Evening
Sumatra Weather - 2026-09-08 - Evening - Sunny
64°F 18°C
Sunny
Comfortable with temperatures reaching 73°F 23°C, locally heavy thunderstorms at times, with steady humidity and steady pressure. Winds switching from the WNW to the NW at 21 mph 34 km/h. Gusts up to 28 mph 45 km/h.

Wednesday, September 9, 2026

Mid-Morning
Sumatra Weather - 2026-09-09 - Morning - Sunny
62°F 17°C
Sunny
Mid-Afternoon
Sumatra Weather - 2026-09-09 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Sumatra Weather - 2026-09-09 - Evening - Sunny
71°F 22°C
Sunny
Enjoyable around 77°F 25°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds moving from the WSW to the ENE at 10 mph 17 km/h.

Thursday, September 10, 2026

Mid-Morning
Sumatra Weather - 2026-09-10 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Sumatra Weather - 2026-09-10 - Afternoon - Partly Cloudy
90°F 32°C
Partly Cloudy
Early-Evening
Sumatra Weather - 2026-09-10 - Evening - Overcast
81°F 27°C
Overcast
Hot temperatures near 90°F 32°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and barometric pressure falling. Winds swinging from the WSW to the N at 16 mph 25 km/h. Gusts up to 25 mph 39 km/h.

Friday, September 11, 2026

Mid-Morning
Sumatra Weather - 2026-09-11 - Morning - Scattered Showers
58°F 14°C
Scattered Showers
Mid-Afternoon
Sumatra Weather - 2026-09-11 - Afternoon - Cloudy
55°F 13°C
Cloudy
Early-Evening
Sumatra Weather - 2026-09-11 - Evening - Cloudy
54°F 12°C
Cloudy
Brisk around 55°F 13°C, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the N to the NNW at 14 mph 22 km/h.

Saturday, September 12, 2026

Mid-Morning
Sumatra Weather - 2026-09-12 - Morning - Light Showers
48°F 9°C
Light Showers
Mid-Afternoon
Sumatra Weather - 2026-09-12 - Afternoon - Scattered Showers
54°F 12°C
Scattered Showers
Early-Evening
Sumatra Weather - 2026-09-12 - Evening - Overcast
56°F 13°C
Overcast
Cool and brisk at 54°F 12°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds turning from the N to the SW at 5 mph 8 km/h.

Sunday, September 13, 2026

Mid-Morning
Sumatra Weather - 2026-09-13 - Morning - Sunny
53°F 11°C
Sunny
Mid-Afternoon
Sumatra Weather - 2026-09-13 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Sumatra Weather - 2026-09-13 - Evening - Sunny
64°F 18°C
Sunny
Comfortable at 66°F 19°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the W to the E at 5 mph 8 km/h.

Monday, September 14, 2026

Mid-Morning
Sumatra Weather - 2026-09-14 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Sumatra Weather - 2026-09-14 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Sumatra Weather - 2026-09-14 - Evening - Sunny
75°F 24°C
Sunny
Enjoyable around 78°F 26°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds moving from the SE to the SSE at 8 mph 13 km/h.

Tuesday, September 15, 2026

Mid-Morning
Sumatra Weather - 2026-09-15 - Morning - Sunny
71°F 22°C
Sunny
Mid-Afternoon
Sumatra Weather - 2026-09-15 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Sumatra Weather - 2026-09-15 - Evening - Sunny
79°F 26°C
Sunny
Warm temperatures up to 86°F 30°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the SW to the ENE at 9 mph 14 km/h.

Wednesday, September 16, 2026

Mid-Morning
Sumatra Weather - 2026-09-16 - Morning - Partly Cloudy
66°F 19°C
Partly Cloudy
Mid-Afternoon
Sumatra Weather - 2026-09-16 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Sumatra Weather - 2026-09-16 - Evening - Partly Cloudy
75°F 23°C
Partly Cloudy
Mild with a high of 78°F 26°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds out of the ENE at 13 mph 21 km/h. Gusts up to 22 mph 35 km/h.

Thursday, September 17, 2026

Mid-Morning
Sumatra Weather - 2026-09-17 - Morning - Overcast
64°F 18°C
Overcast
Mid-Afternoon
Sumatra Weather - 2026-09-17 - Afternoon - Overcast
84°F 29°C
Overcast
Early-Evening
Sumatra Weather - 2026-09-17 - Evening - Sunny
79°F 26°C
Sunny
Warm and summery near 84°F 29°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds blowing from the WSW at 12 mph 20 km/h.

Friday, September 18, 2026

Mid-Morning
Sumatra Weather - 2026-09-18 - Morning - Sunny
58°F 14°C
Sunny
Mid-Afternoon
Sumatra Weather - 2026-09-18 - Afternoon - Overcast
66°F 19°C
Overcast
Early-Evening
Sumatra Weather - 2026-09-18 - Evening - Overcast
62°F 17°C
Overcast
Cool with a high near 66°F 19°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds switching from the NNW to the NNE at 13 mph 21 km/h. Gusts up to 20 mph 32 km/h.

Saturday, September 19, 2026

Mid-Morning
Sumatra Weather - 2026-09-19 - Morning - Overcast
48°F 9°C
Overcast
Mid-Afternoon
Sumatra Weather - 2026-09-19 - Afternoon - Sunny
58°F 14°C
Sunny
Early-Evening
Sumatra Weather - 2026-09-19 - Evening - Sunny
57°F 14°C
Sunny
Refreshing around 58°F 14°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the NE to the ESE at 14 mph 22 km/h.

Sunday, September 20, 2026

Mid-Morning
Sumatra Weather - 2026-09-20 - Morning - Partly Cloudy
59°F 15°C
Partly Cloudy
Mid-Afternoon
Sumatra Weather - 2026-09-20 - Afternoon - Overcast
86°F 30°C
Overcast
Early-Evening
Sumatra Weather - 2026-09-20 - Evening - Partly Cloudy
76°F 25°C
Partly Cloudy
Warm temperatures up to 86°F 30°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the SSW to the SE at 11 mph 18 km/h.

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Weather by the Numbers

Mon, 7th
Sumatra MT Weather - Monday, Sep 7, 2026 - Sunny
Hi: 80°F 27°C
Lo: 59°F 15°C
Sunrise 06:38 AM
Sunset 07:38 PM
Wind WNW 10 mph16 km/h
Dew Point 52°F11°C
uv Index 6
Barometric Pressure 29.68 in1005 mb
POP 2% *
Humidity 48%
Tue, 8th
Sumatra MT Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 73°F 23°C
Lo: 58°F 14°C
Sunrise 06:39 AM
Sunset 07:36 PM
Wind WNW 19 mph31 km/h
Dew Point 40°F4°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 35%
Wed, 9th
Sumatra MT Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 77°F 25°C
Lo: 55°F 13°C
Sunrise 06:40 AM
Sunset 07:34 PM
Wind WNW 13 mph22 km/h
Dew Point 35°F1°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 9% *
Humidity 26%
Thu, 10th
Sumatra MT Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 91°F 33°C
Lo: 61°F 16°C
Sunrise 06:42 AM
Sunset 07:32 PM
Wind WSW 16 mph26 km/h
Dew Point 28°F-2°C
uv Index 5
Barometric Pressure 29.71 in1006 mb
POP 0% *
Humidity 14%
Fri, 11th
Sumatra MT Weather - Friday, Sep 11, 2026 - Patchy Rain Nearby
Hi: 66°F 19°C
Lo: 49°F 10°C
Sunrise 06:43 AM
Sunset 07:30 PM
Wind N 15 mph24 km/h
Dew Point 42°F6°C
uv Index 3
Barometric Pressure 29.91 in1013 mb
POP 15% *
Humidity 59%
Sat, 12th
Sumatra MT Weather - Saturday, Sep 12, 2026 - Patchy Rain Nearby
Hi: 56°F 13°C
Lo: 47°F 9°C
Sunrise 06:44 AM
Sunset 07:28 PM
Wind NNW 10 mph15 km/h
Dew Point 37°F3°C
uv Index 3
Barometric Pressure 30.06 in1018 mb
POP 18% *
Humidity 59%
Sun, 13th
Sumatra MT Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 66°F 19°C
Lo: 48°F 9°C
Sunrise 06:45 AM
Sunset 07:26 PM
Wind NW 7 mph12 km/h
Dew Point 37°F3°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 41%
Mon, 14th
Sumatra MT Weather - Monday, Sep 14, 2026 - Sunny
Hi: 79°F 26°C
Lo: 54°F 12°C
Sunrise 06:47 AM
Sunset 07:24 PM
Wind SSE 13 mph21 km/h
Dew Point 36°F2°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 0% *
Humidity 28%
Tue, 15th
Sumatra MT Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 86°F 30°C
Lo: 64°F 18°C
Sunrise 06:48 AM
Sunset 07:22 PM
Wind WNW 13 mph21 km/h
Dew Point 36°F2°C
uv Index 7
Barometric Pressure 29.8 in1009 mb
POP 0% *
Humidity 21%
Wed, 16th
Sumatra MT Weather - Wednesday, Sep 16, 2026 - Partly Cloudy
Hi: 78°F 26°C
Lo: 62°F 17°C
Sunrise 06:49 AM
Sunset 07:20 PM
Wind ENE 12 mph20 km/h
Dew Point 41°F5°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 4% *
Humidity 31%
Thu, 17th
Sumatra MT Weather - Thursday, Sep 17, 2026 - Cloudy
Hi: 84°F 29°C
Lo: 60°F 15°C
Sunrise 06:51 AM
Sunset 07:18 PM
Wind SSW 9 mph15 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 8% *
Humidity 34%
Fri, 18th
Sumatra MT Weather - Friday, Sep 18, 2026 - Sunny
Hi: 69°F 20°C
Lo: 57°F 14°C
Sunrise 06:52 AM
Sunset 07:16 PM
Wind N 13 mph21 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 44%
Sat, 19th
Sumatra MT Weather - Saturday, Sep 19, 2026 - Cloudy
Hi: 59°F 15°C
Lo: 47°F 9°C
Sunrise 06:53 AM
Sunset 07:14 PM
Wind NE 8 mph13 km/h
Dew Point 27°F-3°C
uv Index 3
Barometric Pressure 30.39 in1029 mb
POP 6% *
Humidity 39%
Sun, 20th
Sumatra MT Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 86°F 30°C
Lo: 49°F 10°C
Sunrise 06:55 AM
Sunset 07:12 PM
Wind SSW 14 mph23 km/h
Dew Point 36°F2°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 25%
* POP = Probability of Precipitation. Data for 12:00 PM.