Monthly outlook for Lewiston, ID: average high 59.1°, average low 45.6°. That is 4.9° above the climate normal for October. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 6 days and 1.4 inches. The warmest day looks like 8 November (69.7°), the coolest 2 November (37.1°).
59.1°/45.6°
Average high / low
+4.9°
Above normal
4 / 6
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
31 October – 9 November
58.3°
51.5°
+3.8°
10 November – 19 November
60.5°
47.5°
+7.2°
20 November – 29 November
at normal
41.8°
—
October records over 66 years
88°2 October 1987All-time high
14.5°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Culdesac (15 mi).
Sun, 0152° / 42°0.06
52 °
Lewiston, Sunday, 1 November
Light rain. High 52°, low 42°.
Pressure30.03 inHg
Wind3 mph NW
Humidity87%
Visibility6.2 mi
Dew point41°
Mon, 0256° / 37°0
56 °
Lewiston, Monday, 2 November
Clear. High 56°, low 37°.
Pressure30.36 inHg
Wind4.5 mph E
Humidity68%
Visibility6.2 mi
Dew point38°
Tue, 0358° / 41°0
58 °
Lewiston, Tuesday, 3 November
Overcast. High 58°, low 41°.
Pressure30.15 inHg
Wind3.4 mph E
Humidity55%
Visibility6.2 mi
Dew point37°
Wed, 0456° / 41°0
56 °
Lewiston, Wednesday, 4 November
Clear. High 56°, low 41°.
Pressure30.09 inHg
Wind3.3 mph W
Humidity67%
Visibility—
Dew point39°
Thu, 0556° / 43°0.07
56 °
Lewiston, Thursday, 5 November
Light rain. High 56°, low 43°.
Pressure30.18 inHg
Wind8.2 mph W
Humidity69%
Visibility—
Dew point40°
Fri, 0662° / 47°0
62 °
Lewiston, Friday, 6 November
Overcast. High 62°, low 47°.
Pressure30.03 inHg
Wind13.7 mph NW
Humidity35%
Visibility—
Dew point30°
Sat, 0764° / 45°0
64 °
Lewiston, Saturday, 7 November
Overcast. High 64°, low 45°.
Pressure30.15 inHg
Wind7.5 mph SE
Humidity39%
Visibility—
Dew point29°
Sun, 0870° / 52°0
70 °
Lewiston, Sunday, 8 November
Overcast. High 70°, low 52°.
Pressure29.97 inHg
Wind7.9 mph SE
Humidity36%
Visibility—
Dew point32°
Mon, 0956° / 48°0.03
56 °
Lewiston, Monday, 9 November
Light rain. High 56°, low 48°.
Pressure30.15 inHg
Wind3.8 mph N
Humidity83%
Visibility—
Dew point47°
Tue, 1063° / 43°0
63 °
Lewiston, Tuesday, 10 November
Clear. High 63°, low 43°.
Pressure30.18 inHg
Wind5.6 mph SE
Humidity64%
Visibility—
Dew point41°
Wed, 1161° / 51°0.01
61 °
Lewiston, Wednesday, 11 November
Light rain. High 61°, low 51°.
Pressure29.97 inHg
Wind7.4 mph S
Humidity51%
Visibility—
Dew point39°
Thu, 1265° / 52°0.06
65 °
Lewiston, Thursday, 12 November
Light rain. High 65°, low 52°.
Pressure29.77 inHg
Wind21.6 mph SW
Humidity67%
Visibility—
Dew point48°
Fri, 1358° / 50°0.02
58 °
Lewiston, Friday, 13 November
Light rain. High 58°, low 50°.
Pressure30.12 inHg
Wind3.7 mph NE
Humidity78%
Visibility—
Dew point45°
Sat, 1461° / 49°0
61 °
Lewiston, Saturday, 14 November
Overcast. High 61°, low 49°.
Pressure29.97 inHg
Wind3 mph SE
Humidity69%
Visibility—
Dew point45°
Sun, 1555° / 48°0.2
55 °
Lewiston, Sunday, 15 November
Light rain. High 55°, low 48°.
Pressure30.12 inHg
Wind5 mph W
Humidity85%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1647° / 33°0.09
47 °
Lewiston, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.09 in
Chance of precipitation52%
Record high60° (1999)
Record low20° (2014)
Tue, 1747° / 33°0.1
47 °
Lewiston, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.1 in
Chance of precipitation47%
Record high62° (1976)
Record low20° (2000)
Wed, 1846° / 32°0.11
46 °
Lewiston, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.11 in
Chance of precipitation53%
Record high60° (2008)
Record low16° (1994)
Thu, 1946° / 30°0.1
46 °
Lewiston, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.1 in
Chance of precipitation40%
Record high59° (2003)
Record low6° (1985)
Fri, 2045° / 31°0.09
45 °
Lewiston, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation47%
Record high60° (2002)
Record low15° (1978)
Sat, 2144° / 30°0.08
44 °
Lewiston, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation43%
Record high60° (2002)
Record low12° (1985)
Sun, 2243° / 29°0.1
43 °
Lewiston, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.1 in
Chance of precipitation50%
Record high57° (2002)
Record low4° (1994)
Mon, 2342° / 29°0.1
42 °
Lewiston, Monday, 23 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.1 in
Chance of precipitation48%
Record high62° (2017)
Record low-7° (1985)
Tue, 2442° / 30°0.12
42 °
Lewiston, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.12 in
Chance of precipitation53%
Record high55° (1995)
Record low-5° (1985)
Wed, 2541° / 29°0.15
41 °
Lewiston, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.15 in
Chance of precipitation52%
Record high53° (2017)
Record low-2° (2010)
Thu, 2641° / 29°0.08
41 °
Lewiston, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.08 in
Chance of precipitation45%
Record high56° (2014)
Record low9° (1992)
Fri, 2740° / 28°0.1
40 °
Lewiston, Friday, 27 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.1 in
Chance of precipitation50%
Record high57° (2014)
Record low13° (1992)
Sat, 2840° / 28°0.09
40 °
Lewiston, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.09 in
Chance of precipitation38%
Record high58° (2021)
Record low1° (1979)
Sun, 2940° / 27°0.08
40 °
Lewiston, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.08 in
Chance of precipitation45%
Record high56° (2021)
Record low-2° (1979)
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 Lewiston, 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 Lewiston, 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.