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Harrison MT Weather - Clear - 51°F
Clear
51°F
Updated 10:11 pm
Feels Like 35°F
Humidity 61%
Wind NE 9 mph
Barometer  30.12 in
Dew Point 39°F
Harrison MT Weather - Clear - 11°C
Clear
11°C
Updated 10:11 pm
Feels Like 2°C
Humidity 61%
Wind NE 14 km/h
Barometer  101.9 kPa
Dew Point 4°C
Harrison, MT Weather and Current Conditionsharrison mt weather forecast

Harrison, MT Weather Forecast

Harrison Montana WeatherHarrison, Montana Weather Weather Forecast
14 day API forecast for Harrison, Montana. Note. The 7-day weather forecast for Harrison, MT is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Harrison, MT Weather Forecast Dated: 1011 PM Fri Sep 11 2026
Expect a cool pattern with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.

Friday, September 11, 2026

Mid-Morning
Harrison Weather - 2026-09-11 - Morning - Sunny
54°F 12°C
Sunny
Mid-Afternoon
Harrison Weather - 2026-09-11 - Afternoon - Overcast
60°F 16°C
Overcast
Early-Evening
Harrison Weather - 2026-09-11 - Evening - Scattered Showers
50°F 10°C
Scattered Showers
Refreshing around 60°F 16°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure.

Saturday, September 12, 2026

Mid-Morning
Harrison Weather - 2026-09-12 - Morning - Overcast
44°F 7°C
Overcast
Mid-Afternoon
Harrison Weather - 2026-09-12 - Afternoon - Overcast
62°F 17°C
Overcast
Early-Evening
Harrison Weather - 2026-09-12 - Evening - Overcast
54°F 12°C
Overcast
Mildly cool near 62°F 17°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds turning from the S to the NE at 5 mph 8 km/h.

Sunday, September 13, 2026

Mid-Morning
Harrison Weather - 2026-09-13 - Morning - Overcast
48°F 9°C
Overcast
Mid-Afternoon
Harrison Weather - 2026-09-13 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
Harrison Weather - 2026-09-13 - Evening - Sunny
48°F 9°C
Sunny
Comfortable at 67°F 19°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds building from SE at 3 mph 5 km/h to W at 18 mph 29 km/h. Gusts up to 31 mph 49 km/h.

Monday, September 14, 2026

Mid-Morning
Harrison Weather - 2026-09-14 - Morning - Partly Cloudy
40°F 4°C
Partly Cloudy
Mid-Afternoon
Harrison Weather - 2026-09-14 - Afternoon - Sunny
54°F 12°C
Sunny
Early-Evening
Harrison Weather - 2026-09-14 - Evening - Sunny
49°F 10°C
Sunny
Crisp with a high near 54°F 12°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the WSW to the NE at 7 mph 10 km/h.

Tuesday, September 15, 2026

Mid-Morning
Harrison Weather - 2026-09-15 - Morning - Partly Cloudy
46°F 8°C
Partly Cloudy
Mid-Afternoon
Harrison Weather - 2026-09-15 - Afternoon - Sunny
59°F 15°C
Sunny
Early-Evening
Harrison Weather - 2026-09-15 - Evening - Cloudy
51°F 11°C
Cloudy
Refreshing around 59°F 15°C, partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds swinging from the SSW to the NE at 9 mph 14 km/h.

Wednesday, September 16, 2026

Mid-Morning
Harrison Weather - 2026-09-16 - Morning - Sunny
42°F 6°C
Sunny
Mid-Afternoon
Harrison Weather - 2026-09-16 - Afternoon - Sunny
60°F 15°C
Sunny
Early-Evening
Harrison Weather - 2026-09-16 - Evening - Sunny
52°F 11°C
Sunny
Mildly cool near 60°F 15°C, sunny throughout the day, with lower humidity and steady pressure.

Thursday, September 17, 2026

Mid-Morning
Harrison Weather - 2026-09-17 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Harrison Weather - 2026-09-17 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Harrison Weather - 2026-09-17 - Evening - Sunny
62°F 17°C
Sunny
Comfortable with temperatures reaching 68°F 20°C, sunny throughout the day, with lower humidity and barometric pressure falling.

Friday, September 18, 2026

Mid-Morning
Harrison Weather - 2026-09-18 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Harrison Weather - 2026-09-18 - Afternoon - Overcast
73°F 23°C
Overcast
Early-Evening
Harrison Weather - 2026-09-18 - Evening - Scattered Showers
59°F 15°C
Scattered Showers
Enjoyable around 73°F 23°C, scattered downpours possible, with increasing humidity and steady pressure.

Saturday, September 19, 2026

Mid-Morning
Harrison Weather - 2026-09-19 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Harrison Weather - 2026-09-19 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Harrison Weather - 2026-09-19 - Evening - Scattered Showers
51°F 11°C
Scattered Showers
Mild temperatures up to 70°F 21°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds shifting from the WSW to the NNE at 8 mph 13 km/h.

Sunday, September 20, 2026

Mid-Morning
Harrison Weather - 2026-09-20 - Morning - Nearby Thunderstorms
50°F 10°C
Nearby Thunderstorms
Mid-Afternoon
Harrison Weather - 2026-09-20 - Afternoon - Nearby Thunderstorms
58°F 14°C
Nearby Thunderstorms
Early-Evening
Harrison Weather - 2026-09-20 - Evening - Sunny
52°F 12°C
Sunny
Mildly cool near 58°F 14°C, periods of heavy thunderstorms, with lower humidity and steady pressure.

Monday, September 21, 2026

Mid-Morning
Harrison Weather - 2026-09-21 - Morning - Sunny
51°F 10°C
Sunny
Mid-Afternoon
Harrison Weather - 2026-09-21 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Harrison Weather - 2026-09-21 - Evening - Sunny
56°F 13°C
Sunny
Comfortable at 64°F 18°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.

Tuesday, September 22, 2026

Mid-Morning
Harrison Weather - 2026-09-22 - Morning - Nearby Thunderstorms
49°F 9°C
Nearby Thunderstorms
Mid-Afternoon
Harrison Weather - 2026-09-22 - Afternoon - Nearby Thunderstorms
61°F 16°C
Nearby Thunderstorms
Early-Evening
Harrison Weather - 2026-09-22 - Evening - Sunny
54°F 13°C
Sunny
Cool with a high near 61°F 16°C, heavy thunderstorms conditions at times, with lower humidity and steady pressure.

Wednesday, September 23, 2026

Mid-Morning
Harrison Weather - 2026-09-23 - Morning - Sunny
54°F 12°C
Sunny
Mid-Afternoon
Harrison Weather - 2026-09-23 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Harrison Weather - 2026-09-23 - Evening - Overcast
60°F 15°C
Overcast
Enjoyable around 68°F 20°C, sunny through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling. Winds SW at 15 mph 24 km/h. Gusts up to 26 mph 41 km/h.

Thursday, September 24, 2026

Mid-Morning
Harrison Weather - 2026-09-24 - Morning - Sunny
45°F 7°C
Sunny
Mid-Afternoon
Harrison Weather - 2026-09-24 - Afternoon - Sunny
54°F 12°C
Sunny
Early-Evening
Harrison Weather - 2026-09-24 - Evening - Sunny
47°F 8°C
Sunny
Cool and brisk at 54°F 12°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the W to the NNW at 9 mph 14 km/h.

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Weather by the Numbers

Fri, 11th
Harrison MT Weather - Friday, Sep 11, 2026 - Overcast
Hi: 61°F 16°C
Lo: 40°F 4°C
Sunrise 07:01 AM
Sunset 07:46 PM
Wind WSW 6 mph9 km/h
Dew Point 31°F-1°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 10% *
Humidity 34%
Sat, 12th
Harrison MT Weather - Saturday, Sep 12, 2026 - Overcast
Hi: 63°F 17°C
Lo: 36°F 2°C
Sunrise 07:03 AM
Sunset 07:45 PM
Wind SW 5 mph9 km/h
Dew Point 32°F-0°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 10% *
Humidity 40%
Sun, 13th
Harrison MT Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 67°F 19°C
Lo: 38°F 3°C
Sunrise 07:04 AM
Sunset 07:43 PM
Wind SSW 17 mph27 km/h
Dew Point 27°F-3°C
uv Index 5
Barometric Pressure 29.68 in1005 mb
POP 9% *
Humidity 24%
Mon, 14th
Harrison MT Weather - Monday, Sep 14, 2026 - Sunny
Hi: 56°F 13°C
Lo: 32°F 0°C
Sunrise 07:05 AM
Sunset 07:41 PM
Wind WSW 9 mph14 km/h
Dew Point 22°F-5°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 37%
Tue, 15th
Harrison MT Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 60°F 16°C
Lo: 36°F 2°C
Sunrise 07:06 AM
Sunset 07:39 PM
Wind SW 6 mph9 km/h
Dew Point 20°F-7°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 24%
Wed, 16th
Harrison MT Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 60°F 15°C
Lo: 34°F 1°C
Sunrise 07:08 AM
Sunset 07:37 PM
Wind SSW 3 mph5 km/h
Dew Point 32°F-0°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 2% *
Humidity 44%
Thu, 17th
Harrison MT Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 68°F 20°C
Lo: 41°F 5°C
Sunrise 07:09 AM
Sunset 07:35 PM
Wind SW 6 mph10 km/h
Dew Point 16°F-9°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 0% *
Humidity 16%
Fri, 18th
Harrison MT Weather - Friday, Sep 18, 2026 - Sunny
Hi: 73°F 23°C
Lo: 49°F 10°C
Sunrise 07:10 AM
Sunset 07:33 PM
Wind SW 4 mph7 km/h
Dew Point 23°F-5°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 16%
Sat, 19th
Harrison MT Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 70°F 21°C
Lo: 47°F 9°C
Sunrise 07:11 AM
Sunset 07:31 PM
Wind SSW 4 mph7 km/h
Dew Point 34°F1°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 0% *
Humidity 28%
Sun, 20th
Harrison MT Weather - Sunday, Sep 20, 2026 - Light Rain Shower
Hi: 58°F 14°C
Lo: 43°F 6°C
Sunrise 07:13 AM
Sunset 07:29 PM
Wind WNW 3 mph5 km/h
Dew Point 39°F4°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 44% *
Humidity 54%
Mon, 21st
Harrison MT Weather - Monday, Sep 21, 2026 - Sunny
Hi: 64°F 18°C
Lo: 43°F 6°C
Sunrise 07:14 AM
Sunset 07:27 PM
Wind WSW 4 mph6 km/h
Dew Point 31°F-1°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 1% *
Humidity 32%
Tue, 22nd
Harrison MT Weather - Tuesday, Sep 22, 2026 - Thundery Outbreaks In Nearby
Hi: 61°F 16°C
Lo: 43°F 6°C
Sunrise 07:15 AM
Sunset 07:25 PM
Wind WNW 2 mph3 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 8% *
Humidity 44%
Wed, 23rd
Harrison MT Weather - Wednesday, Sep 23, 2026 - Overcast
Hi: 68°F 20°C
Lo: 45°F 7°C
Sunrise 07:16 AM
Sunset 07:23 PM
Wind SW 11 mph18 km/h
Dew Point 26°F-3°C
uv Index 4
Barometric Pressure 29.91 in1013 mb
POP 9% *
Humidity 24%
Thu, 24th
Harrison MT Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 54°F 12°C
Lo: 38°F 4°C
Sunrise 07:18 AM
Sunset 07:21 PM
Wind W 13 mph20 km/h
Dew Point 16°F-9°C
uv Index 3
Barometric Pressure 30 in1016 mb
POP 0% *
Humidity 26%
* POP = Probability of Precipitation. Data for 12:00 PM.