Monthly outlook for Herman, ID: average high 55.2°, average low 37°. That is 1.9° above the climate normal for October. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 9 October (73.3°), the coolest 16 October (29.8°).
55.2°/37°
Average high / low
+1.9°
Above normal
6 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
53.5°
52.8°
+0.4°
19 October – 28 October
58.1°
48.7°
+5.2°
29 October – 7 November
at normal
42°
—
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).
Sat, 1061° / 41°0.31
61 °
Herman, Saturday, 10 October
Rain. High 61°, low 41°.
Pressure29.68 inHg
Wind7.7 mph S
Humidity89%
Visibility2.4 mi
Dew point48°
Sun, 1150° / 45°0.76
50 °
Herman, Sunday, 11 October
Rain. High 50°, low 45°.
Pressure29.65 inHg
Wind7.6 mph SE
Humidity97%
Visibility3.0 mi
Dew point46°
Mon, 1254° / 40°0.44
54 °
Herman, Monday, 12 October
Rain. High 54°, low 40°.
Pressure29.83 inHg
Wind8.5 mph S
Humidity75%
Visibility6.2 mi
Dew point39°
Tue, 1353° / 39°0.11
53 °
Herman, Tuesday, 13 October
Light rain. High 53°, low 39°.
Pressure29.94 inHg
Wind8.1 mph NW
Humidity76%
Visibility—
Dew point39°
Wed, 1449° / 37°0.09
49 °
Herman, Wednesday, 14 October
Light rain. High 49°, low 37°.
Pressure29.97 inHg
Wind11.9 mph NW
Humidity67%
Visibility—
Dew point33°
Thu, 1540° / 35°0.28
40 °
Herman, Thursday, 15 October
Snow. High 40°, low 35°.
Pressure30.06 inHg
Wind6.8 mph S
Humidity99%
Visibility—
Dew point36°
Fri, 1645° / 30°0
45 °
Herman, Friday, 16 October
Partly cloudy. High 45°, low 30°.
Pressure30.45 inHg
Wind4.7 mph NW
Humidity60%
Visibility—
Dew point25°
Sat, 1753° / 30°0
53 °
Herman, Saturday, 17 October
Partly cloudy. High 53°, low 30°.
Pressure30.33 inHg
Wind5.5 mph SE
Humidity38%
Visibility—
Dew point21°
Sun, 1856° / 35°0
56 °
Herman, Sunday, 18 October
Overcast. High 56°, low 35°.
Pressure30.21 inHg
Wind5.4 mph SE
Humidity33%
Visibility—
Dew point20°
Mon, 1956° / 35°0
56 °
Herman, Monday, 19 October
Clear. High 56°, low 35°.
Pressure30.15 inHg
Wind6.7 mph W
Humidity32%
Visibility—
Dew point20°
Tue, 2057° / 37°0
57 °
Herman, Tuesday, 20 October
Clear. High 57°, low 37°.
Pressure30.12 inHg
Wind6.3 mph SW
Humidity28%
Visibility—
Dew point19°
Wed, 2158° / 38°0
58 °
Herman, Wednesday, 21 October
Clear. High 58°, low 38°.
Pressure30.09 inHg
Wind10.1 mph W
Humidity26%
Visibility—
Dew point18°
Thu, 2259° / 37°0
59 °
Herman, Thursday, 22 October
Clear. High 59°, low 37°.
Pressure30.27 inHg
Wind4.5 mph SE
Humidity29%
Visibility—
Dew point20°
Fri, 2360° / 38°0
60 °
Herman, Friday, 23 October
Clear. High 60°, low 38°.
Pressure30.12 inHg
Wind11.7 mph SW
Humidity23%
Visibility—
Dew point17°
Sat, 2458° / 39°0
58 °
Herman, Saturday, 24 October
Clear. High 58°, low 39°.
Pressure30.09 inHg
Wind7 mph SE
Humidity26%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 0741° / 22°0.09
41 °
Herman, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high41°
Average low22°
Average precipitation0.09 in
Chance of precipitation47%
Record high59° (1999)
Record low-1° (2003)
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.