Monthly outlook for Lanark, ID: average high 59.4°, average low 40°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 7 October (79.3°), the coolest 16 October (28.5°).
59.4°/40°
Average high / low
+2°
Above normal
4 / 4
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
60.8°
57°
+2.1°
17 October – 26 October
57.2°
52.9°
+2.4°
27 October – 5 November
at normal
46°
—
October records over 66 years
81.9°1 October 2010All-time high
-17.7°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Ovid (2 mi).
Thu, 0879° / 45°0
79 °
Lanark, Thursday, 8 October
Clear. High 79°, low 45°.
Pressure30.06 inHg
Wind2.6 mph E
Humidity30%
Visibility6.2 mi
Dew point34°
Fri, 0971° / 46°0
71 °
Lanark, Friday, 9 October
Partly cloudy. High 71°, low 46°.
Pressure29.80 inHg
Wind4.3 mph SE
Humidity31%
Visibility6.2 mi
Dew point35°
Sat, 1063° / 45°0.04
63 °
Lanark, Saturday, 10 October
Light rain. High 63°, low 45°.
Pressure29.56 inHg
Wind11.3 mph SW
Humidity31%
Visibility6.2 mi
Dew point31°
Sun, 1149° / 41°0.72
49 °
Lanark, Sunday, 11 October
Rain. High 49°, low 41°.
Pressure29.74 inHg
Wind4.8 mph E
Humidity93%
Visibility—
Dew point45°
Mon, 1258° / 46°0.58
58 °
Lanark, Monday, 12 October
Rain. High 58°, low 46°.
Pressure29.88 inHg
Wind4.9 mph E
Humidity71%
Visibility—
Dew point42°
Tue, 1363° / 47°0.04
63 °
Lanark, Tuesday, 13 October
Light rain. High 63°, low 47°.
Pressure29.85 inHg
Wind14.9 mph W
Humidity51%
Visibility—
Dew point41°
Wed, 1451° / 36°0.01
51 °
Lanark, Wednesday, 14 October
Light rain. High 51°, low 36°.
Pressure29.80 inHg
Wind21.5 mph NW
Humidity40%
Visibility—
Dew point27°
Thu, 1542° / 31°0.01
42 °
Lanark, Thursday, 15 October
Light snow. High 42°, low 31°.
Pressure30.30 inHg
Wind13.8 mph NW
Humidity40%
Visibility—
Dew point16°
Fri, 1653° / 29°0
53 °
Lanark, Friday, 16 October
Mostly clear. High 53°, low 29°.
Pressure30.42 inHg
Wind3.3 mph W
Humidity23%
Visibility—
Dew point8°
Sat, 1757° / 39°0
57 °
Lanark, Saturday, 17 October
Overcast. High 57°, low 39°.
Pressure30.15 inHg
Wind2.9 mph SE
Humidity20%
Visibility—
Dew point10°
Sun, 1861° / 42°0
61 °
Lanark, Sunday, 18 October
Partly cloudy. High 61°, low 42°.
Pressure30.09 inHg
Wind6.4 mph SE
Humidity22%
Visibility—
Dew point15°
Mon, 1960° / 41°0
60 °
Lanark, Monday, 19 October
Clear. High 60°, low 41°.
Pressure30.06 inHg
Wind11.8 mph NW
Humidity20%
Visibility—
Dew point15°
Tue, 2054° / 37°0
54 °
Lanark, Tuesday, 20 October
Clear. High 54°, low 37°.
Pressure30.24 inHg
Wind11.5 mph SE
Humidity33%
Visibility—
Dew point20°
Wed, 2154° / 34°0
54 °
Lanark, Wednesday, 21 October
Clear. High 54°, low 34°.
Pressure30.33 inHg
Wind9.5 mph SE
Humidity30%
Visibility—
Dew point16°
Thu, 2258° / 34°0
58 °
Lanark, Thursday, 22 October
Clear. High 58°, low 34°.
Pressure30.09 inHg
Wind4.1 mph SE
Humidity21%
Visibility—
Dew point10°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2352° / 33°0.08
52 °
Lanark, Friday, 23 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.08 in
Chance of precipitation38%
Record high66° (1965)
Record low6° (1984)
Sat, 2451° / 32°0.08
51 °
Lanark, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.08 in
Chance of precipitation37%
Record high68° (1992)
Record low17° (2019)
Sun, 2552° / 31°0.07
52 °
Lanark, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high52°
Average low31°
Average precipitation0.07 in
Chance of precipitation32%
Record high68° (1992)
Record low5° (1961)
Mon, 2650° / 31°0.1
50 °
Lanark, Monday, 26 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.1 in
Chance of precipitation32%
Record high66° (1999)
Record low2° (1970)
Tue, 2749° / 30°0.06
49 °
Lanark, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.06 in
Chance of precipitation18%
Record high65° (1977)
Record low5° (1996)
Wed, 2849° / 29°0.07
49 °
Lanark, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.07 in
Chance of precipitation33%
Record high65° (1990)
Record low4° (1970)
Thu, 2947° / 29°0.08
47 °
Lanark, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.08 in
Chance of precipitation37%
Record high67° (1962)
Record low2° (1971)
Fri, 3045° / 28°0.08
45 °
Lanark, Friday, 30 October
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.08 in
Chance of precipitation38%
Record high68° (1962)
Record low-18° (2019)
Sat, 3145° / 27°0.09
45 °
Lanark, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.09 in
Chance of precipitation33%
Record high63° (1965)
Record low-8° (2019)
Sun, 0145° / 26°0.07
45 °
Lanark, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.07 in
Chance of precipitation33%
Record high63° (1965)
Record low-1° (2019)
Mon, 0244° / 26°0.06
44 °
Lanark, Monday, 2 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.06 in
Chance of precipitation28%
Record high61° (1965)
Record low1° (1970)
Tue, 0345° / 25°0.05
45 °
Lanark, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1962)
Record low-9° (1991)
Wed, 0445° / 26°0.06
45 °
Lanark, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.06 in
Chance of precipitation22%
Record high62° (2020)
Record low4° (1970)
Thu, 0545° / 27°0.07
45 °
Lanark, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.07 in
Chance of precipitation32%
Record high62° (1980)
Record low-5° (1961)
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.