Monthly outlook for Herman, ID: average high 55.1°, average low 36.5°. That is 1.6° above the climate normal for October. Precipitation is expected on 8 days (about 1.6 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 9 October (73°), the coolest 15 October (23.6°).
55.1°/36.5°
Average high / low
+1.6°
Above normal
8 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
57°
53.2°
+2.1°
18 October – 27 October
51.8°
49.4°
+1.4°
28 October – 6 November
at normal
42.4°
—
October records over 66 years
78.3°1 October 2010All-time high
-10.1°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Wayan (11 mi).
Fri, 0973° / 37°0
73 °
Herman, Friday, 9 October
Light rain. High 73°, low 37°.
Pressure29.83 inHg
Wind11 mph SW
Humidity31%
Visibility6.2 mi
Dew point35°
Sat, 1062° / 40°0.09
62 °
Herman, Saturday, 10 October
Rain. High 62°, low 40°.
Pressure29.62 inHg
Wind10.4 mph SW
Humidity41%
Visibility6.2 mi
Dew point36°
Sun, 1157° / 46°0.37
57 °
Herman, Sunday, 11 October
Rain. High 57°, low 46°.
Pressure29.68 inHg
Wind10.7 mph S
Humidity70%
Visibility6.2 mi
Dew point43°
Mon, 1258° / 46°0.36
58 °
Herman, Monday, 12 October
Light rain. High 58°, low 46°.
Pressure29.74 inHg
Wind12.8 mph S
Humidity84%
Visibility2.3 mi
Dew point46°
Tue, 1357° / 44°0.06
57 °
Herman, Tuesday, 13 October
Light rain. High 57°, low 44°.
Pressure29.88 inHg
Wind8.4 mph N
Humidity47%
Visibility—
Dew point33°
Wed, 1443° / 30°0.21
43 °
Herman, Wednesday, 14 October
Snow. High 43°, low 30°.
Pressure29.88 inHg
Wind21.6 mph W
Humidity100%
Visibility—
Dew point38°
Thu, 1539° / 24°0.05
39 °
Herman, Thursday, 15 October
Light snow. High 39°, low 24°.
Pressure30.27 inHg
Wind9.4 mph N
Humidity63%
Visibility—
Dew point23°
Fri, 1649° / 26°0
49 °
Herman, Friday, 16 October
Mostly clear. High 49°, low 26°.
Pressure30.27 inHg
Wind9.7 mph E
Humidity51%
Visibility—
Dew point24°
Sat, 1760° / 33°0
60 °
Herman, Saturday, 17 October
Clear. High 60°, low 33°.
Pressure30.15 inHg
Wind11 mph E
Humidity39%
Visibility—
Dew point28°
Sun, 1847° / 38°0.32
47 °
Herman, Sunday, 18 October
Rain. High 47°, low 38°.
Pressure30.09 inHg
Wind11.8 mph SW
Humidity59%
Visibility—
Dew point32°
Mon, 1942° / 37°0.1
42 °
Herman, Monday, 19 October
Snow. High 42°, low 37°.
Pressure30.21 inHg
Wind11.2 mph SW
Humidity70%
Visibility—
Dew point31°
Tue, 2051° / 34°0
51 °
Herman, Tuesday, 20 October
Clear. High 51°, low 34°.
Pressure30.24 inHg
Wind4.3 mph W
Humidity57%
Visibility—
Dew point31°
Wed, 2156° / 34°0
56 °
Herman, Wednesday, 21 October
Mostly clear. High 56°, low 34°.
Pressure30.18 inHg
Wind5.8 mph SW
Humidity36%
Visibility—
Dew point23°
Thu, 2258° / 36°0
58 °
Herman, Thursday, 22 October
Clear. High 58°, low 36°.
Pressure30.15 inHg
Wind4.9 mph SE
Humidity30%
Visibility—
Dew point21°
Fri, 2355° / 38°0.04
55 °
Herman, Friday, 23 October
Light rain. High 55°, low 38°.
Pressure30.03 inHg
Wind13.1 mph S
Humidity33%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2448° / 29°0.08
48 °
Herman, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.08 in
Chance of precipitation35%
Record high65° (1992)
Record low4° (2019)
Sun, 2548° / 28°0.07
48 °
Herman, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.07 in
Chance of precipitation30%
Record high64° (1992)
Record low3° (1961)
Mon, 2647° / 28°0.1
47 °
Herman, Monday, 26 October
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.1 in
Chance of precipitation35%
Record high63° (1999)
Record low4° (1970)
Tue, 2746° / 27°0.05
46 °
Herman, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.05 in
Chance of precipitation25%
Record high61° (1977)
Record low4° (2019)
Wed, 2846° / 26°0.09
46 °
Herman, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.09 in
Chance of precipitation37%
Record high62° (2008)
Record low-1° (1970)
Thu, 2944° / 26°0.07
44 °
Herman, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.07 in
Chance of precipitation28%
Record high64° (1962)
Record low2° (1971)
Fri, 3042° / 24°0.09
42 °
Herman, Friday, 30 October
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.09 in
Chance of precipitation38%
Record high65° (1962)
Record low-10° (2019)
Sat, 3142° / 25°0.07
42 °
Herman, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.07 in
Chance of precipitation30%
Record high60° (2008)
Record low-2° (1972)
Sun, 0142° / 24°0.06
42 °
Herman, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.06 in
Chance of precipitation37%
Record high60° (1988)
Record low-2° (1989)
Mon, 0242° / 24°0.06
42 °
Herman, Monday, 2 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.06 in
Chance of precipitation33%
Record high57° (1965)
Record low-7° (1991)
Tue, 0342° / 23°0.05
42 °
Herman, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high42°
Average low23°
Average precipitation0.05 in
Chance of precipitation20%
Record high60° (1962)
Record low-9° (1991)
Wed, 0442° / 23°0.07
42 °
Herman, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high42°
Average low23°
Average precipitation0.07 in
Chance of precipitation28%
Record high57° (2001)
Record low-1° (1992)
Thu, 0542° / 24°0.09
42 °
Herman, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.09 in
Chance of precipitation40%
Record high59° (1987)
Record low2° (2002)
Fri, 0641° / 23°0.07
41 °
Herman, Friday, 6 November
Climate normal for this date — 60-year average.
Average high41°
Average low23°
Average precipitation0.07 in
Chance of precipitation35%
Record high60° (1999)
Record low-5° (1971)
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 Herman, 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 Herman, 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.