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As of 19:08 MDT

Weather in Grimes Pass, ID

93°Current weather

Grimes Pass, Saturday, 8 August, 19:08

Mostly clear. Feels like 89°. High 94°, low 59°.

Pressure29.77 inHg
Wind10.2 mph W
Humidity16%
Visibility6.2 mi
Dew point41°
Sun, 0993° / 56°0Clear
93 °Clear

Grimes Pass, Sunday, 9 August

Clear. High 93°, low 56°.

Pressure29.85 inHg
Wind5.9 mph W
Humidity11%
Visibility6.2 mi
Dew point27°
Mon, 1094° / 55°0Clear
94 °Clear

Grimes Pass, Monday, 10 August

Clear. High 94°, low 55°.

Pressure29.85 inHg
Wind6.7 mph W
Humidity12%
Visibility6.2 mi
Dew point29°
Tue, 1197° / 62°0Clear
97 °Clear

Grimes Pass, Tuesday, 11 August

Clear. High 97°, low 62°.

Pressure29.88 inHg
Wind4.8 mph W
Humidity10%
Visibility6.2 mi
Dew point27°
Wed, 1294° / 69°0Overcast
94 °Overcast

Grimes Pass, Wednesday, 12 August

Overcast. High 94°, low 69°.

Pressure29.80 inHg
Wind5.6 mph W
Humidity14%
Visibility6.2 mi
Dew point32°
Thu, 1391° / 66°0Overcast
91 °Overcast

Grimes Pass, Thursday, 13 August

Overcast. High 91°, low 66°.

Pressure29.77 inHg
Wind10.5 mph W
Humidity17%
Visibility—
Dew point36°
Fri, 1491° / 62°0Overcast
91 °Overcast

Grimes Pass, Friday, 14 August

Overcast. High 91°, low 62°.

Pressure29.88 inHg
Wind6.5 mph W
Humidity15%
Visibility—
Dew point31°
Sat, 1590° / 61°0.01Light rain
90 °Light rain

Grimes Pass, Saturday, 15 August

Light rain. High 90°, low 61°.

Pressure30.00 inHg
Wind8.1 mph W
Humidity27%
Visibility—
Dew point46°
Sun, 1694° / 65°0Mostly clear
94 °Mostly clear

Grimes Pass, Sunday, 16 August

Mostly clear. High 94°, low 65°.

Pressure30.03 inHg
Wind9.9 mph W
Humidity19%
Visibility—
Dew point40°
Mon, 1796° / 66°0Overcast
96 °Overcast

Grimes Pass, Monday, 17 August

Overcast. High 96°, low 66°.

Pressure29.97 inHg
Wind12.2 mph W
Humidity17%
Visibility—
Dew point40°
Tue, 1890° / 64°0.01Light rain
90 °Light rain

Grimes Pass, Tuesday, 18 August

Light rain. High 90°, low 64°.

Pressure30.00 inHg
Wind13.1 mph W
Humidity24%
Visibility—
Dew point45°
Wed, 1991° / 58°0Clear
91 °Clear

Grimes Pass, Wednesday, 19 August

Clear. High 91°, low 58°.

Pressure29.97 inHg
Wind8.9 mph W
Humidity22%
Visibility—
Dew point41°
Thu, 2092° / 63°0Overcast
92 °Overcast

Grimes Pass, Thursday, 20 August

Overcast. High 92°, low 63°.

Pressure29.83 inHg
Wind10.8 mph W
Humidity19%
Visibility—
Dew point39°
Fri, 2189° / 56°0Partly cloudy
89 °Partly cloudy

Grimes Pass, Friday, 21 August

Partly cloudy. High 89°, low 56°.

Pressure29.94 inHg
Wind8.6 mph W
Humidity19%
Visibility—
Dew point34°
Sat, 2295° / 59°0Mostly clear
95 °Mostly clear

Grimes Pass, Saturday, 22 August

Mostly clear. High 95°, low 59°.

Pressure29.85 inHg
Wind9.6 mph W
Humidity9%
Visibility—
Dew point22°
Sun, 2396° / 64°0Partly cloudy
96 °Partly cloudy

Grimes Pass, Sunday, 23 August

Partly cloudy. High 96°, low 64°.

Pressure29.83 inHg
Wind9.8 mph W
Humidity12%
Visibility—
Dew point30°

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 Grimes Pass, 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 Grimes Pass, 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.