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As of 16:19 MDT

Weather in Portal, MT

82°Current weather

Portal, Sunday, 9 August, 16:19

Overcast. Feels like 80°. High 82°, low 48°.

Pressure29.74 inHg
Wind10 mph NW
Humidity15%
Visibility6.2 mi
Dew point30°

Two-week outlook for Portal, MT: week one averages a high of 77.4° and week two 82.4°, so week two runs 5° warmer than week one. Around 0.6 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, August 9: 82°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)77.4°48.8°0.6 in / 3 d—
2nd (August 16 – August 22)82.4°56.5°0.0 in / 0 d—

Weekend weather

Sun, August 9
Overcast
82°48°
no precip.
Sat, August 15
Light rain
73°49°
0.04 in
Sun, August 16
Light rain
78°52°
0.03 in
Sat, August 22
Mostly clear
86°62°
no precip.
Mon, 1083° / 47°0Clear
83 °Clear

Portal, Monday, 10 August

Clear. High 83°, low 47°.

Pressure29.83 inHg
Wind8.6 mph W
Humidity14%
Visibility6.2 mi
Dew point27°
Tue, 1185° / 47°0Clear
85 °Clear

Portal, Tuesday, 11 August

Clear. High 85°, low 47°.

Pressure29.88 inHg
Wind5.4 mph W
Humidity13%
Visibility6.2 mi
Dew point25°
Wed, 1281° / 51°0.01Light rain
81 °Light rain

Portal, Wednesday, 12 August

Light rain. High 81°, low 51°.

Pressure29.85 inHg
Wind6.3 mph E
Humidity26%
Visibility6.2 mi
Dew point38°
Thu, 1371° / 49°0.12Light rain
71 °Light rain

Portal, Thursday, 13 August

Light rain. High 71°, low 49°.

Pressure29.88 inHg
Wind5.1 mph NE
Humidity52%
Visibility6.2 mi
Dew point48°
Fri, 1467° / 50°0.4Rain
67 °Rain

Portal, Friday, 14 August

Rain. High 67°, low 50°.

Pressure30.03 inHg
Wind5.5 mph N
Humidity85%
Visibility—
Dew point51°
Sat, 1573° / 49°0.04Light rain
73 °Light rain

Portal, Saturday, 15 August

Light rain. High 73°, low 49°.

Pressure29.97 inHg
Wind5.2 mph NW
Humidity39%
Visibility—
Dew point44°
Sun, 1678° / 52°0.03Light rain
78 °Light rain

Portal, Sunday, 16 August

Light rain. High 78°, low 52°.

Pressure29.88 inHg
Wind11.7 mph SW
Humidity27%
Visibility—
Dew point37°
Mon, 1777° / 51°0Overcast
77 °Overcast

Portal, Monday, 17 August

Overcast. High 77°, low 51°.

Pressure29.94 inHg
Wind9.8 mph W
Humidity23%
Visibility—
Dew point29°
Tue, 1882° / 55°0Partly cloudy
82 °Partly cloudy

Portal, Tuesday, 18 August

Partly cloudy. High 82°, low 55°.

Pressure29.94 inHg
Wind11.5 mph W
Humidity22%
Visibility—
Dew point32°
Wed, 1984° / 56°0Overcast
84 °Overcast

Portal, Wednesday, 19 August

Overcast. High 84°, low 56°.

Pressure29.94 inHg
Wind11.2 mph W
Humidity20%
Visibility—
Dew point32°
Thu, 2084° / 60°0Overcast
84 °Overcast

Portal, Thursday, 20 August

Overcast. High 84°, low 60°.

Pressure29.97 inHg
Wind10.9 mph NW
Humidity19%
Visibility—
Dew point32°
Fri, 2186° / 61°0Clear
86 °Clear

Portal, Friday, 21 August

Clear. High 86°, low 61°.

Pressure30.03 inHg
Wind11.1 mph NW
Humidity27%
Visibility—
Dew point41°
Sat, 2286° / 62°0Mostly clear
86 °Mostly clear

Portal, Saturday, 22 August

Mostly clear. High 86°, low 62°.

Pressure30.03 inHg
Wind8.2 mph NW
Humidity20%
Visibility—
Dew point34°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Portal, MT, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.