Monthly outlook for Lewiston, UT: average high 49.9°, average low 36°. That is 1.2° above the climate normal for October. Precipitation is expected on 9 days (about 1.8 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 31 October (56.6°), the coolest 14 November (29.6°).
49.9°/36°
Average high / low
+1.2°
Above normal
9 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
51.5°
49.3°
+1.2°
9 November – 18 November
47.4°
44.2°
+1.8°
19 November – 28 November
at normal
38°
—
October records over 66 years
85.8°1 October 2010All-time high
4.5°31 October 2003All-time low
Climate normals and records are computed from the nearest reference point — Cove (5 mi).
Sat, 3157° / 41°0.14
57 °
Lewiston, Saturday, 31 October
Rain. High 57°, low 41°.
Pressure30.00 inHg
Wind3.1 mph S
Humidity84%
Visibility6.2 mi
Dew point47°
Sun, 0150° / 44°0.8
50 °
Lewiston, Sunday, 1 November
Rain. High 50°, low 44°.
Pressure29.77 inHg
Wind0.9 mph W
Humidity85%
Visibility2.4 mi
Dew point45°
Mon, 0251° / 35°0.05
51 °
Lewiston, Monday, 2 November
Light rain. High 51°, low 35°.
Pressure30.24 inHg
Wind7.9 mph N
Humidity61%
Visibility6.2 mi
Dew point37°
Tue, 0352° / 34°0
52 °
Lewiston, Tuesday, 3 November
Partly cloudy. High 52°, low 34°.
Pressure30.42 inHg
Wind2.5 mph N
Humidity59%
Visibility—
Dew point32°
Wed, 0455° / 37°0
55 °
Lewiston, Wednesday, 4 November
Overcast. High 55°, low 37°.
Pressure30.12 inHg
Wind1.5 mph N
Humidity56%
Visibility—
Dew point32°
Thu, 0552° / 38°0
52 °
Lewiston, Thursday, 5 November
Clear. High 52°, low 38°.
Pressure29.94 inHg
Wind3.2 mph E
Humidity62%
Visibility—
Dew point34°
Fri, 0654° / 42°0.15
54 °
Lewiston, Friday, 6 November
Light rain. High 54°, low 42°.
Pressure29.85 inHg
Wind9 mph NW
Humidity45%
Visibility—
Dew point29°
Sat, 0743° / 32°0.11
43 °
Lewiston, Saturday, 7 November
Snow. High 43°, low 32°.
Pressure30.18 inHg
Wind11.6 mph N
Humidity69%
Visibility—
Dew point29°
Sun, 0846° / 31°0
46 °
Lewiston, Sunday, 8 November
Clear. High 46°, low 31°.
Pressure30.30 inHg
Wind3.9 mph N
Humidity55%
Visibility—
Dew point25°
Mon, 0948° / 33°0
48 °
Lewiston, Monday, 9 November
Overcast. High 48°, low 33°.
Pressure30.12 inHg
Wind4.8 mph SW
Humidity51%
Visibility—
Dew point26°
Tue, 1054° / 39°0
54 °
Lewiston, Tuesday, 10 November
Overcast. High 54°, low 39°.
Pressure29.97 inHg
Wind5.5 mph SW
Humidity40%
Visibility—
Dew point24°
Wed, 1152° / 37°0.15
52 °
Lewiston, Wednesday, 11 November
Light rain. High 52°, low 37°.
Pressure29.59 inHg
Wind13.9 mph SW
Humidity43%
Visibility—
Dew point29°
Thu, 1243° / 34°0.16
43 °
Lewiston, Thursday, 12 November
Snow. High 43°, low 34°.
Pressure29.85 inHg
Wind10.2 mph SW
Humidity65%
Visibility—
Dew point31°
Fri, 1342° / 31°0.05
42 °
Lewiston, Friday, 13 November
Snow. High 42°, low 31°.
Pressure30.27 inHg
Wind6.3 mph W
Humidity69%
Visibility—
Dew point29°
Sat, 1446° / 30°0
46 °
Lewiston, Saturday, 14 November
Overcast. High 46°, low 30°.
Pressure30.21 inHg
Wind4.4 mph SE
Humidity50%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1544° / 25°0.03
44 °
Lewiston, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.03 in
Chance of precipitation18%
Record high65° (1999)
Record low-1° (1964)
Mon, 1643° / 27°0.06
43 °
Lewiston, Monday, 16 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.06 in
Chance of precipitation32%
Record high64° (1999)
Record low-10° (2014)
Tue, 1743° / 27°0.09
43 °
Lewiston, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.09 in
Chance of precipitation37%
Record high61° (1999)
Record low-7° (2014)
Wed, 1842° / 27°0.1
42 °
Lewiston, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.1 in
Chance of precipitation40%
Record high57° (2007)
Record low3° (1961)
Thu, 1941° / 26°0.06
41 °
Lewiston, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.06 in
Chance of precipitation30%
Record high59° (2007)
Record low-1° (1994)
Fri, 2041° / 24°0.08
41 °
Lewiston, Friday, 20 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.08 in
Chance of precipitation37%
Record high58° (1989)
Record low2° (2011)
Sat, 2140° / 24°0.07
40 °
Lewiston, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.07 in
Chance of precipitation32%
Record high54° (1974)
Record low5° (1964)
Sun, 2239° / 25°0.11
39 °
Lewiston, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.11 in
Chance of precipitation38%
Record high56° (2017)
Record low-6° (1994)
Mon, 2338° / 22°0.08
38 °
Lewiston, Monday, 23 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.08 in
Chance of precipitation32%
Record high57° (2017)
Record low-4° (1994)
Tue, 2438° / 22°0.12
38 °
Lewiston, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.12 in
Chance of precipitation42%
Record high54° (1995)
Record low-5° (1982)
Wed, 2537° / 21°0.12
37 °
Lewiston, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.12 in
Chance of precipitation47%
Record high55° (1995)
Record low-15° (2010)
Thu, 2636° / 21°0.12
36 °
Lewiston, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.12 in
Chance of precipitation45%
Record high58° (2017)
Record low-9° (1993)
Fri, 2735° / 19°0.07
35 °
Lewiston, Friday, 27 November
Climate normal for this date — 60-year average.
Average high35°
Average low19°
Average precipitation0.07 in
Chance of precipitation42%
Record high54° (1998)
Record low-7° (1993)
Sat, 2835° / 20°0.09
35 °
Lewiston, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.09 in
Chance of precipitation42%
Record high52° (1999)
Record low-10° (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, UT 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, UT 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.