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As of 15:17 MDT

Weather in Harrison, MT

88°Current weather

Harrison, Saturday, 8 August, 15:17

Clear. Feels like 84°. High 88°, low 55°.

Pressure29.77 inHg
Wind14.2 mph NW
Humidity17%
Visibility6.2 mi
Dew point36°
Sun, 0985° / 54°0Mostly clear
85 °Mostly clear

Harrison, Sunday, 9 August

Mostly clear. High 85°, low 54°.

Pressure29.85 inHg
Wind8.4 mph NE
Humidity12%
Visibility6.2 mi
Dew point26°
Mon, 1095° / 51°0Clear
95 °Clear

Harrison, Monday, 10 August

Clear. High 95°, low 51°.

Pressure29.83 inHg
Wind7.3 mph N
Humidity13%
Visibility6.2 mi
Dew point27°
Tue, 1192° / 59°0Clear
92 °Clear

Harrison, Tuesday, 11 August

Clear. High 92°, low 59°.

Pressure29.91 inHg
Wind7.7 mph NE
Humidity12%
Visibility6.2 mi
Dew point24°
Wed, 1292° / 60°0Clear
92 °Clear

Harrison, Wednesday, 12 August

Clear. High 92°, low 60°.

Pressure29.80 inHg
Wind7.3 mph NE
Humidity16%
Visibility6.2 mi
Dew point33°
Thu, 1393° / 58°0.01Light rain
93 °Light rain

Harrison, Thursday, 13 August

Light rain. High 93°, low 58°.

Pressure29.80 inHg
Wind6.5 mph NE
Humidity21%
Visibility—
Dew point35°
Fri, 1492° / 68°0Overcast
92 °Overcast

Harrison, Friday, 14 August

Overcast. High 92°, low 68°.

Pressure29.80 inHg
Wind18 mph NE
Humidity14%
Visibility—
Dew point31°
Sat, 1583° / 59°0.06Light rain
83 °Light rain

Harrison, Saturday, 15 August

Light rain. High 83°, low 59°.

Pressure30.00 inHg
Wind18.7 mph NW
Humidity33%
Visibility—
Dew point43°
Sun, 1684° / 56°0Clear
84 °Clear

Harrison, Sunday, 16 August

Clear. High 84°, low 56°.

Pressure30.00 inHg
Wind15.1 mph S
Humidity23%
Visibility—
Dew point38°
Mon, 1791° / 59°0Overcast
91 °Overcast

Harrison, Monday, 17 August

Overcast. High 91°, low 59°.

Pressure30.00 inHg
Wind9.4 mph N
Humidity16%
Visibility—
Dew point31°
Tue, 1882° / 60°0.01Light rain
82 °Light rain

Harrison, Tuesday, 18 August

Light rain. High 82°, low 60°.

Pressure29.91 inHg
Wind29.3 mph W
Humidity19%
Visibility—
Dew point33°
Wed, 1985° / 54°0Clear
85 °Clear

Harrison, Wednesday, 19 August

Clear. High 85°, low 54°.

Pressure30.03 inHg
Wind11.3 mph NE
Humidity29%
Visibility—
Dew point39°
Thu, 2091° / 58°0Partly cloudy
91 °Partly cloudy

Harrison, Thursday, 20 August

Partly cloudy. High 91°, low 58°.

Pressure29.88 inHg
Wind6.4 mph N
Humidity16%
Visibility—
Dew point31°
Fri, 2195° / 63°0Clear
95 °Clear

Harrison, Friday, 21 August

Clear. High 95°, low 63°.

Pressure29.88 inHg
Wind11.1 mph N
Humidity14%
Visibility—
Dew point30°
Sat, 2295° / 63°0Clear
95 °Clear

Harrison, Saturday, 22 August

Clear. High 95°, low 63°.

Pressure29.91 inHg
Wind16.4 mph NE
Humidity18%
Visibility—
Dew point35°
Sun, 2393° / 63°0Partly cloudy
93 °Partly cloudy

Harrison, Sunday, 23 August

Partly cloudy. High 93°, low 63°.

Pressure30.00 inHg
Wind14.2 mph NE
Humidity25%
Visibility—
Dew point42°

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 Harrison, 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 Harrison, 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.