Monthly outlook for Myrtle, ID: average high 62.9°, average low 44.5°. That is 0.9° 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 17 October (71.3°), the coolest 13 October (33°).
62.9°/44.5°
Average high / low
+0.9°
Above normal
3 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
61.3°
62.3°
-0.6°
20 October – 29 October
65.7°
57.9°
+4.3°
30 October – 8 November
at normal
52°
—
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).
Sun, 1151° / 41°0.05
51 °
Myrtle, Sunday, 11 October
Light rain. High 51°, low 41°.
Pressure29.85 inHg
Wind8.5 mph NE
Humidity48%
Visibility6.2 mi
Dew point30°
Mon, 1249° / 36°0.19
49 °
Myrtle, Monday, 12 October
Rain. High 49°, low 36°.
Pressure30.09 inHg
Wind0.7 mph NW
Humidity66%
Visibility6.2 mi
Dew point35°
Tue, 1357° / 33°0
57 °
Myrtle, Tuesday, 13 October
Clear. High 57°, low 33°.
Pressure30.18 inHg
Wind0.5 mph S
Humidity58%
Visibility1.8 mi
Dew point37°
Wed, 1459° / 35°0
59 °
Myrtle, Wednesday, 14 October
Clear. High 59°, low 35°.
Pressure30.24 inHg
Wind3.7 mph N
Humidity62%
Visibility—
Dew point37°
Thu, 1566° / 38°0
66 °
Myrtle, Thursday, 15 October
Clear. High 66°, low 38°.
Pressure30.42 inHg
Wind4.5 mph N
Humidity52%
Visibility—
Dew point37°
Fri, 1671° / 45°0
71 °
Myrtle, Friday, 16 October
Mostly clear. High 71°, low 45°.
Pressure30.39 inHg
Wind6.7 mph E
Humidity42%
Visibility—
Dew point37°
Sat, 1771° / 50°0
71 °
Myrtle, Saturday, 17 October
Overcast. High 71°, low 50°.
Pressure30.06 inHg
Wind5.3 mph E
Humidity32%
Visibility—
Dew point32°
Sun, 1868° / 52°0
68 °
Myrtle, Sunday, 18 October
Overcast. High 68°, low 52°.
Pressure30.03 inHg
Wind9.6 mph NW
Humidity44%
Visibility—
Dew point39°
Mon, 1962° / 48°0.09
62 °
Myrtle, Monday, 19 October
Light rain. High 62°, low 48°.
Pressure30.00 inHg
Wind16.3 mph W
Humidity48%
Visibility—
Dew point38°
Tue, 2062° / 44°0
62 °
Myrtle, Tuesday, 20 October
Mostly clear. High 62°, low 44°.
Pressure30.27 inHg
Wind6.2 mph W
Humidity54%
Visibility—
Dew point38°
Wed, 2165° / 46°0
65 °
Myrtle, Wednesday, 21 October
Overcast. High 65°, low 46°.
Pressure30.18 inHg
Wind9.7 mph NW
Humidity36%
Visibility—
Dew point32°
Thu, 2265° / 43°0
65 °
Myrtle, Thursday, 22 October
Overcast. High 65°, low 43°.
Pressure30.03 inHg
Wind5.3 mph NE
Humidity36%
Visibility—
Dew point27°
Fri, 2363° / 53°0
63 °
Myrtle, Friday, 23 October
Light rain. High 63°, low 53°.
Pressure29.88 inHg
Wind5.8 mph E
Humidity37%
Visibility—
Dew point32°
Sat, 2471° / 52°0
71 °
Myrtle, Saturday, 24 October
Overcast. High 71°, low 52°.
Pressure30.18 inHg
Wind3.9 mph E
Humidity44%
Visibility—
Dew point39°
Sun, 2569° / 51°0
69 °
Myrtle, Sunday, 25 October
Overcast. High 69°, low 51°.
Pressure30.30 inHg
Wind4.4 mph NE
Humidity48%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2657° / 39°0.1
57 °
Myrtle, Monday, 26 October
Climate normal for this date — 60-year average.
Average high57°
Average low39°
Average precipitation0.1 in
Chance of precipitation43%
Record high73° (1986)
Record low22° (2020)
Tue, 2755° / 38°0.08
55 °
Myrtle, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.08 in
Chance of precipitation40%
Record high71° (1965)
Record low24° (2020)
Wed, 2855° / 37°0.08
55 °
Myrtle, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.08 in
Chance of precipitation45%
Record high69° (1987)
Record low24° (1971)
Thu, 2954° / 37°0.08
54 °
Myrtle, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.08 in
Chance of precipitation42%
Record high70° (1983)
Record low19° (2019)
Fri, 3054° / 37°0.07
54 °
Myrtle, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.07 in
Chance of precipitation35%
Record high71° (2008)
Record low15° (2019)
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)
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.