Monthly outlook for New Plymouth, ID: average high 99.6°, average low 65.2°. That is 4.7° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 1 days and 0.2 inches. The warmest day looks like 24 August (112°), the coolest 10 August (58.7°).
99.6°/65.2°
Average high / low
+4.7°
Above normal
0 / 1
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
96.2°
92.3°
+2.2°
19 August – 28 August
105.3°
88.9°
+9.1°
29 August – 7 September
at normal
86.8°
—
August records over 66 years
109.6°4 August 1961All-time high
48.6°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Nyssa (11 mi).
Mon, 1096° / 59°0
96 °
New Plymouth, Monday, 10 August
Clear. High 96°, low 59°.
Pressure29.85 inHg
Wind8 mph NW
Humidity12%
Visibility6.2 mi
Dew point30°
Tue, 11102° / 60°0
102 °
New Plymouth, Tuesday, 11 August
Clear. High 102°, low 60°.
Pressure29.88 inHg
Wind6.3 mph NW
Humidity11%
Visibility6.2 mi
Dew point29°
Wed, 1299° / 64°0
99 °
New Plymouth, Wednesday, 12 August
Clear. High 99°, low 64°.
Pressure29.77 inHg
Wind7.2 mph NW
Humidity16%
Visibility6.2 mi
Dew point38°
Thu, 1395° / 66°0
95 °
New Plymouth, Thursday, 13 August
Overcast. High 95°, low 66°.
Pressure29.71 inHg
Wind6.7 mph NW
Humidity19%
Visibility6.2 mi
Dew point40°
Fri, 1494° / 71°0.01
94 °
New Plymouth, Friday, 14 August
Light rain. High 94°, low 71°.
Pressure29.80 inHg
Wind19.6 mph SE
Humidity27%
Visibility—
Dew point47°
Sat, 1597° / 66°0.01
97 °
New Plymouth, Saturday, 15 August
Light rain. High 97°, low 66°.
Pressure29.91 inHg
Wind7.8 mph SW
Humidity31%
Visibility—
Dew point49°
Sun, 1696° / 65°0
96 °
New Plymouth, Sunday, 16 August
Overcast. High 96°, low 65°.
Pressure29.91 inHg
Wind15.7 mph W
Humidity30%
Visibility—
Dew point47°
Mon, 1792° / 62°0
92 °
New Plymouth, Monday, 17 August
Overcast. High 92°, low 62°.
Pressure29.94 inHg
Wind7.8 mph NW
Humidity18%
Visibility—
Dew point33°
Tue, 1897° / 64°0
97 °
New Plymouth, Tuesday, 18 August
Partly cloudy. High 97°, low 64°.
Pressure29.91 inHg
Wind7.3 mph W
Humidity15%
Visibility—
Dew point32°
Wed, 1999° / 62°0
99 °
New Plymouth, Wednesday, 19 August
Clear. High 99°, low 62°.
Pressure29.91 inHg
Wind7.3 mph NW
Humidity19%
Visibility—
Dew point38°
Thu, 20101° / 65°0
101 °
New Plymouth, Thursday, 20 August
Overcast. High 101°, low 65°.
Pressure29.97 inHg
Wind10.1 mph E
Humidity22%
Visibility—
Dew point43°
Fri, 21105° / 67°0
105 °
New Plymouth, Friday, 21 August
Clear. High 105°, low 67°.
Pressure29.97 inHg
Wind6.9 mph NW
Humidity17%
Visibility—
Dew point40°
Sat, 22106° / 70°0
106 °
New Plymouth, Saturday, 22 August
Overcast. High 106°, low 70°.
Pressure29.94 inHg
Wind7.1 mph NW
Humidity16%
Visibility—
Dew point39°
Sun, 23109° / 70°0
109 °
New Plymouth, Sunday, 23 August
Overcast. High 109°, low 70°.
Pressure29.91 inHg
Wind8.9 mph E
Humidity11%
Visibility—
Dew point31°
Mon, 24112° / 72°0
112 °
New Plymouth, Monday, 24 August
Clear. High 112°, low 72°.
Pressure29.83 inHg
Wind21.6 mph W
Humidity10%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2588° / 64°0.01
88 °
New Plymouth, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high88°
Average low64°
Average precipitation0.01 in
Chance of precipitation7%
Record high101° (1996)
Record low51° (1992)
Wed, 2688° / 64°0.01
88 °
New Plymouth, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high88°
Average low64°
Average precipitation0.01 in
Chance of precipitation8%
Record high104° (2010)
Record low49° (1993)
Thu, 2789° / 64°0.02
89 °
New Plymouth, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0.02 in
Chance of precipitation7%
Record high100° (2009)
Record low50° (1960)
Fri, 2889° / 64°0
89 °
New Plymouth, Friday, 28 August
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high101° (2009)
Record low50° (1960)
Sat, 2989° / 64°0
89 °
New Plymouth, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation3%
Record high100° (1998)
Record low51° (1964)
Sun, 3088° / 64°0.01
88 °
New Plymouth, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high88°
Average low64°
Average precipitation0.01 in
Chance of precipitation8%
Record high100° (2022)
Record low49° (1965)
Mon, 3186° / 62°0.02
86 °
New Plymouth, Monday, 31 August
Climate normal for this date — 60-year average.
Average high86°
Average low62°
Average precipitation0.02 in
Chance of precipitation3%
Record high103° (2022)
Record low51° (1999)
Tue, 0187° / 62°0
87 °
New Plymouth, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low62°
Average precipitation0 in
Chance of precipitation2%
Record high99° (1976)
Record low50° (1999)
Wed, 0287° / 62°0
87 °
New Plymouth, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low62°
Average precipitation0 in
Chance of precipitation2%
Record high101° (2022)
Record low45° (1964)
Thu, 0387° / 61°0
87 °
New Plymouth, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low61°
Average precipitation0 in
Chance of precipitation2%
Record high100° (1998)
Record low48° (1964)
Fri, 0487° / 62°0.01
87 °
New Plymouth, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low62°
Average precipitation0.01 in
Chance of precipitation3%
Record high103° (2017)
Record low51° (1965)
Sat, 0587° / 62°0.02
87 °
New Plymouth, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low62°
Average precipitation0.02 in
Chance of precipitation7%
Record high102° (2020)
Record low52° (1996)
Sun, 0685° / 61°0.01
85 °
New Plymouth, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high85°
Average low61°
Average precipitation0.01 in
Chance of precipitation7%
Record high101° (2022)
Record low50° (2000)
Mon, 0785° / 61°0
85 °
New Plymouth, Monday, 7 September
Climate normal for this date — 60-year average.
Average high85°
Average low61°
Average precipitation0 in
Chance of precipitation5%
Record high105° (2022)
Record low48° (1992)
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 New Plymouth, 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 New Plymouth, 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.