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As of 05:38 MDT

Weather in Portal, MT

56°Current weather

Portal, Sunday, 9 August, 05:38

Clear. Feels like 53°. High 83°, low 53°.

Pressure30.00 inHg
Wind16 mph N
Humidity39%
Visibility6.2 mi
Dew point31°

10-day forecast for Portal, MT: 47° to 85°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

85°
Best day: Tuesday, August 11
79° · 0.18 in
Worst day: Saturday, August 15

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1084° / 47°0Clear
MorningClear53°feels 49°
AfternoonClear82°feels 79°
EveningClear76°feels 74°
OvernightClear51°feels 48°
84 °Clear

Portal, Monday, 10 August

Clear. High 84°, low 47°.

Pressure29.83 inHg
Wind8.6 mph W
Humidity13%
Visibility6.2 mi
Dew point26°
Tue, 1185° / 56°0Clear
MorningClear64°feels 61°
AfternoonClear84°feels 81°
EveningClear74°feels 72°
OvernightClear58°feels 55°
85 °Clear

Portal, Tuesday, 11 August

Clear. High 85°, low 56°.

Pressure29.91 inHg
Wind4.5 mph NW
Humidity13%
Visibility6.2 mi
Dew point26°
Wed, 1281° / 55°0Overcast
MorningOvercast62°feels 60°
AfternoonOvercast80°feels 79°
EveningOvercast69°feels 67°
OvernightClear58°feels 55°
81 °Overcast

Portal, Wednesday, 12 August

Overcast. High 81°, low 55°.

Pressure29.88 inHg
Wind5.3 mph E
Humidity22%
Visibility6.2 mi
Dew point34°
Thu, 1382° / 55°0.02Light rain
MorningLight rain63°feels 60°
AfternoonLight rain80°feels 78°
EveningLight rain70°feels 69°
OvernightOvercast59°feels 57°
82 °Light rain

Portal, Thursday, 13 August

Light rain. High 82°, low 55°.

Pressure29.77 inHg
Wind12.2 mph N
Humidity21%
Visibility—
Dew point35°
Fri, 1466° / 52°0.06Light rain
MorningLight rain54°feels 54°
AfternoonLight rain61°feels 60°
EveningLight rain65°feels 63°
OvernightLight rain57°feels 56°
66 °Light rain

Portal, Friday, 14 August

Light rain. High 66°, low 52°.

Pressure30.03 inHg
Wind7.2 mph SE
Humidity73%
Visibility—
Dew point50°
Sat, 1579° / 49°0.18Rain
MorningRain57°feels 56°
AfternoonRain76°feels 75°
EveningRain72°feels 70°
OvernightRain55°feels 54°
79 °Rain

Portal, Saturday, 15 August

Rain. High 79°, low 49°.

Pressure30.03 inHg
Wind5 mph SE
Humidity30%
Visibility—
Dew point39°
Sun, 1666° / 55°0.02Light rain
MorningLight rain56°feels 55°
AfternoonLight rain60°feels 59°
EveningLight rain65°feels 64°
OvernightLight rain59°feels 58°
66 °Light rain

Portal, Sunday, 16 August

Light rain. High 66°, low 55°.

Pressure30.09 inHg
Wind5.6 mph S
Humidity72%
Visibility—
Dew point50°
Mon, 1780° / 52°0.03Light rain
MorningLight rain59°feels 58°
AfternoonLight rain72°feels 71°
EveningLight rain59°feels 58°
OvernightLight rain58°feels 57°
80 °Light rain

Portal, Monday, 17 August

Light rain. High 80°, low 52°.

Pressure29.91 inHg
Wind9.8 mph SW
Humidity30%
Visibility—
Dew point38°
Tue, 1874° / 51°0.02Light rain
MorningLight rain57°feels 55°
AfternoonLight rain71°feels 69°
EveningLight rain69°feels 67°
OvernightLight rain57°feels 56°
74 °Light rain

Portal, Tuesday, 18 August

Light rain. High 74°, low 51°.

Pressure29.85 inHg
Wind16.3 mph W
Humidity27%
Visibility—
Dew point33°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Portal, MT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.