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As of 12:22 MDT

Weather in Lanark, ID

89°Current weather

Lanark, Saturday, 8 August, 12:22

Partly cloudy. Feels like 85°. High 92°, low 61°.

Pressure29.94 inHg
Wind1 mph SW
Humidity17%
Visibility6.2 mi
Dew point36°
Sun, 0993° / 58°0.02Light rain
93 °Light rain

Lanark, Sunday, 9 August

Light rain. High 93°, low 58°.

Pressure29.85 inHg
Wind14 mph W
Humidity15%
Visibility6.2 mi
Dew point36°
Mon, 1094° / 56°0Clear
94 °Clear

Lanark, Monday, 10 August

Clear. High 94°, low 56°.

Pressure29.85 inHg
Wind13.1 mph W
Humidity14%
Visibility6.2 mi
Dew point34°
Tue, 1194° / 64°0Overcast
94 °Overcast

Lanark, Tuesday, 11 August

Overcast. High 94°, low 64°.

Pressure29.91 inHg
Wind11.5 mph W
Humidity9%
Visibility6.2 mi
Dew point23°
Wed, 1288° / 68°0Overcast
88 °Overcast

Lanark, Wednesday, 12 August

Overcast. High 88°, low 68°.

Pressure29.85 inHg
Wind8.9 mph NW
Humidity16%
Visibility6.2 mi
Dew point33°
Thu, 1387° / 58°0Mostly clear
87 °Mostly clear

Lanark, Thursday, 13 August

Mostly clear. High 87°, low 58°.

Pressure29.83 inHg
Wind12.3 mph SW
Humidity18%
Visibility—
Dew point35°
Fri, 1487° / 60°0Mostly clear
87 °Mostly clear

Lanark, Friday, 14 August

Mostly clear. High 87°, low 60°.

Pressure29.91 inHg
Wind12.8 mph SW
Humidity29%
Visibility—
Dew point44°
Sat, 1587° / 62°0Overcast
87 °Overcast

Lanark, Saturday, 15 August

Overcast. High 87°, low 62°.

Pressure30.00 inHg
Wind21.2 mph SW
Humidity30%
Visibility—
Dew point46°
Sun, 1685° / 58°0Clear
85 °Clear

Lanark, Sunday, 16 August

Clear. High 85°, low 58°.

Pressure30.06 inHg
Wind11.9 mph W
Humidity23%
Visibility—
Dew point37°
Mon, 1787° / 61°0Partly cloudy
87 °Partly cloudy

Lanark, Monday, 17 August

Partly cloudy. High 87°, low 61°.

Pressure30.06 inHg
Wind10.8 mph W
Humidity24%
Visibility—
Dew point39°
Tue, 1882° / 60°0.04Light rain
82 °Light rain

Lanark, Tuesday, 18 August

Light rain. High 82°, low 60°.

Pressure30.06 inHg
Wind11.5 mph W
Humidity46%
Visibility—
Dew point50°
Wed, 1983° / 57°0Clear
83 °Clear

Lanark, Wednesday, 19 August

Clear. High 83°, low 57°.

Pressure29.97 inHg
Wind10.4 mph SE
Humidity34%
Visibility—
Dew point47°
Thu, 2088° / 59°0.02Light rain
88 °Light rain

Lanark, Thursday, 20 August

Light rain. High 88°, low 59°.

Pressure29.94 inHg
Wind12.5 mph S
Humidity26%
Visibility—
Dew point44°
Fri, 2184° / 62°0.04Light rain
84 °Light rain

Lanark, Friday, 21 August

Light rain. High 84°, low 62°.

Pressure30.00 inHg
Wind17.9 mph W
Humidity38%
Visibility—
Dew point49°
Sat, 2288° / 60°0Mostly clear
88 °Mostly clear

Lanark, Saturday, 22 August

Mostly clear. High 88°, low 60°.

Pressure29.94 inHg
Wind17.9 mph W
Humidity23%
Visibility—
Dew point41°
Sun, 2385° / 59°0.05Light rain
85 °Light rain

Lanark, Sunday, 23 August

Light rain. High 85°, low 59°.

Pressure29.97 inHg
Wind17.7 mph NW
Humidity36%
Visibility—
Dew point47°

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 Lanark, 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 Lanark, 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.