Monthly outlook for Myrtle, ID: average high 62.4°, average low 42.2°. That is 1.9° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 16 October (75.8°), the coolest 25 October (36.4°).
62.4°/42.2°
Average high / low
+1.9°
Above normal
3 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
64°
60.9°
+1.7°
25 October – 3 November
59.8°
54.5°
+3°
4 November – 13 November
at normal
49.8°
—
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 (9 mi).
Fri, 1676° / 41°0
76 °
Myrtle, Friday, 16 October
Overcast. High 76°, low 41°.
Pressure30.36 inHg
Wind3.3 mph E
Humidity40%
Visibility6.2 mi
Dew point38°
Sat, 1768° / 41°0
68 °
Myrtle, Saturday, 17 October
Overcast. High 68°, low 41°.
Pressure30.12 inHg
Wind5 mph SW
Humidity38%
Visibility6.2 mi
Dew point40°
Sun, 1863° / 39°0
63 °
Myrtle, Sunday, 18 October
Clear. High 63°, low 39°.
Pressure30.06 inHg
Wind1.6 mph NE
Humidity45%
Visibility6.2 mi
Dew point38°
Mon, 1960° / 43°0
60 °
Myrtle, Monday, 19 October
Overcast. High 60°, low 43°.
Pressure29.83 inHg
Wind1.7 mph S
Humidity57%
Visibility6.2 mi
Dew point42°
Tue, 2064° / 40°0
64 °
Myrtle, Tuesday, 20 October
Overcast. High 64°, low 40°.
Pressure29.97 inHg
Wind5 mph W
Humidity45%
Visibility—
Dew point33°
Wed, 2161° / 41°0
61 °
Myrtle, Wednesday, 21 October
Overcast. High 61°, low 41°.
Pressure29.94 inHg
Wind2.9 mph W
Humidity53%
Visibility—
Dew point38°
Thu, 2264° / 50°0
64 °
Myrtle, Thursday, 22 October
Overcast. High 64°, low 50°.
Pressure29.91 inHg
Wind9.6 mph W
Humidity54%
Visibility—
Dew point42°
Fri, 2357° / 45°0.14
57 °
Myrtle, Friday, 23 October
Light rain. High 57°, low 45°.
Pressure30.15 inHg
Wind17.2 mph W
Humidity38%
Visibility—
Dew point30°
Sat, 2454° / 40°0
54 °
Myrtle, Saturday, 24 October
Clear. High 54°, low 40°.
Pressure30.50 inHg
Wind6.5 mph W
Humidity50%
Visibility—
Dew point31°
Sun, 2556° / 36°0
56 °
Myrtle, Sunday, 25 October
Clear. High 56°, low 36°.
Pressure30.50 inHg
Wind4.3 mph E
Humidity46%
Visibility—
Dew point27°
Mon, 2659° / 39°0
59 °
Myrtle, Monday, 26 October
Overcast. High 59°, low 39°.
Pressure30.21 inHg
Wind4 mph E
Humidity36%
Visibility—
Dew point24°
Tue, 2759° / 53°0.09
59 °
Myrtle, Tuesday, 27 October
Light rain. High 59°, low 53°.
Pressure30.00 inHg
Wind5.7 mph NE
Humidity56%
Visibility—
Dew point40°
Wed, 2864° / 47°0.09
64 °
Myrtle, Wednesday, 28 October
Light rain. High 64°, low 47°.
Pressure30.12 inHg
Wind24.9 mph W
Humidity47%
Visibility—
Dew point41°
Thu, 2960° / 41°0
60 °
Myrtle, Thursday, 29 October
Clear. High 60°, low 41°.
Pressure30.39 inHg
Wind4.8 mph NE
Humidity49%
Visibility—
Dew point33°
Fri, 3061° / 41°0
61 °
Myrtle, Friday, 30 October
Clear. High 61°, low 41°.
Pressure30.30 inHg
Wind4.4 mph NE
Humidity41%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3153° / 37°0.11
53 °
Myrtle, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.11 in
Chance of precipitation38%
Record high71° (1988)
Record low20° (2002)
Sun, 0152° / 37°0.11
52 °
Myrtle, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.11 in
Chance of precipitation43%
Record high70° (1988)
Record low20° (2002)
Mon, 0253° / 36°0.07
53 °
Myrtle, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.07 in
Chance of precipitation37%
Record high66° (1981)
Record low20° (2002)
Tue, 0353° / 35°0.04
53 °
Myrtle, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low35°
Average precipitation0.04 in
Chance of precipitation20%
Record high67° (1975)
Record low19° (1973)
Wed, 0452° / 37°0.12
52 °
Myrtle, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.12 in
Chance of precipitation48%
Record high67° (1975)
Record low22° (1973)
Thu, 0552° / 36°0.1
52 °
Myrtle, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.1 in
Chance of precipitation47%
Record high67° (2012)
Record low19° (1971)
Fri, 0651° / 36°0.12
51 °
Myrtle, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.12 in
Chance of precipitation53%
Record high68° (2012)
Record low15° (1971)
Sat, 0750° / 36°0.13
50 °
Myrtle, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.13 in
Chance of precipitation47%
Record high68° (1999)
Record low20° (1973)
Sun, 0850° / 34°0.09
50 °
Myrtle, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.09 in
Chance of precipitation45%
Record high66° (2016)
Record low18° (1994)
Mon, 0949° / 33°0.09
49 °
Myrtle, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.09 in
Chance of precipitation47%
Record high64° (2016)
Record low20° (1986)
Tue, 1048° / 33°0.06
48 °
Myrtle, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation40%
Record high68° (1989)
Record low13° (2000)
Wed, 1149° / 33°0.07
49 °
Myrtle, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation30%
Record high65° (2016)
Record low17° (1986)
Thu, 1248° / 34°0.1
48 °
Myrtle, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation38%
Record high71° (1999)
Record low12° (1985)
Fri, 1348° / 33°0.08
48 °
Myrtle, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.08 in
Chance of precipitation45%
Record high69° (1999)
Record low12° (1985)
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 Myrtle, 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 Myrtle, 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.