EN
English Español

As of 07:32 MDT

Weather in Portneuf, ID

78°Current weather

Portneuf, Sunday, 9 August, 07:32

Overcast. Feels like 76°. High 97°, low 70°.

Pressure29.97 inHg
Wind4 mph SW
Humidity20%
Visibility6.2 mi
Dew point33°
Mon, 1098° / 63°0Partly cloudy
98 °Partly cloudy

Portneuf, Monday, 10 August

Partly cloudy. High 98°, low 63°.

Pressure29.80 inHg
Wind13.1 mph W
Humidity15%
Visibility6.2 mi
Dew point40°
Tue, 1198° / 68°0Mostly clear
98 °Mostly clear

Portneuf, Tuesday, 11 August

Mostly clear. High 98°, low 68°.

Pressure29.88 inHg
Wind7.8 mph W
Humidity9%
Visibility6.2 mi
Dew point25°
Wed, 1294° / 76°0Overcast
94 °Overcast

Portneuf, Wednesday, 12 August

Overcast. High 94°, low 76°.

Pressure29.80 inHg
Wind4.5 mph SE
Humidity21%
Visibility6.2 mi
Dew point39°
Thu, 1383° / 68°0.11Light rain
83 °Light rain

Portneuf, Thursday, 13 August

Light rain. High 83°, low 68°.

Pressure29.80 inHg
Wind5.9 mph S
Humidity41%
Visibility—
Dew point51°
Fri, 1480° / 60°0.13Light rain
80 °Light rain

Portneuf, Friday, 14 August

Light rain. High 80°, low 60°.

Pressure29.91 inHg
Wind11.2 mph SW
Humidity46%
Visibility—
Dew point52°
Sat, 1591° / 60°0Mostly clear
91 °Mostly clear

Portneuf, Saturday, 15 August

Mostly clear. High 91°, low 60°.

Pressure30.03 inHg
Wind12 mph SW
Humidity26%
Visibility—
Dew point42°
Sun, 1691° / 67°0Overcast
91 °Overcast

Portneuf, Sunday, 16 August

Overcast. High 91°, low 67°.

Pressure30.00 inHg
Wind14.3 mph SW
Humidity17%
Visibility—
Dew point36°
Mon, 1791° / 70°0Partly cloudy
91 °Partly cloudy

Portneuf, Monday, 17 August

Partly cloudy. High 91°, low 70°.

Pressure30.03 inHg
Wind17 mph NW
Humidity26%
Visibility—
Dew point45°
Tue, 1892° / 67°0Clear
92 °Clear

Portneuf, Tuesday, 18 August

Clear. High 92°, low 67°.

Pressure30.06 inHg
Wind14.2 mph W
Humidity18%
Visibility—
Dew point36°
Wed, 1996° / 69°0Clear
96 °Clear

Portneuf, Wednesday, 19 August

Clear. High 96°, low 69°.

Pressure30.06 inHg
Wind9.9 mph NW
Humidity15%
Visibility—
Dew point34°
Thu, 20100° / 71°0Clear
100 °Clear

Portneuf, Thursday, 20 August

Clear. High 100°, low 71°.

Pressure29.97 inHg
Wind10.6 mph NW
Humidity12%
Visibility—
Dew point31°
Fri, 21100° / 73°0Mostly clear
100 °Mostly clear

Portneuf, Friday, 21 August

Mostly clear. High 100°, low 73°.

Pressure29.88 inHg
Wind11.8 mph W
Humidity15%
Visibility—
Dew point38°
Sat, 22102° / 73°0Overcast
102 °Overcast

Portneuf, Saturday, 22 August

Overcast. High 102°, low 73°.

Pressure29.94 inHg
Wind10.8 mph W
Humidity13%
Visibility—
Dew point34°
Sun, 23101° / 73°0Clear
101 °Clear

Portneuf, Sunday, 23 August

Clear. High 101°, low 73°.

Pressure30.03 inHg
Wind10.3 mph N
Humidity18%
Visibility—
Dew point42°
Mon, 24105° / 76°0Overcast
105 °Overcast

Portneuf, Monday, 24 August

Overcast. High 105°, low 76°.

Pressure29.94 inHg
Wind13.8 mph NW
Humidity12%
Visibility—
Dew point36°

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 Portneuf, ID 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 Portneuf, ID 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.