Monthly outlook for Josephson, ID: average high 98.4°, average low 64.6°. That is 5° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 1 days and 0.2 inches. The warmest day looks like 22 August (105.6°), the coolest 10 August (57.7°).
98.4°/64.6°
Average high / low
+5°
Above normal
1 / 1
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
98°
90.4°
+4.2°
18 August – 27 August
99.1°
87.3°
+6.6°
28 August – 6 September
at normal
85.4°
—
August records over 66 years
107.8°10 August 2018All-time high
44.6°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Nampa (12 mi).
Sun, 0995° / 59°0
95 °
Josephson, Sunday, 9 August
Clear. High 95°, low 59°.
Pressure29.83 inHg
Wind9.5 mph NW
Humidity9%
Visibility6.2 mi
Dew point24°
Mon, 10100° / 58°0
100 °
Josephson, Monday, 10 August
Clear. High 100°, low 58°.
Pressure29.85 inHg
Wind9.3 mph NW
Humidity12%
Visibility6.2 mi
Dew point30°
Tue, 11101° / 62°0
101 °
Josephson, Tuesday, 11 August
Clear. High 101°, low 62°.
Pressure29.88 inHg
Wind8.5 mph NW
Humidity11%
Visibility6.2 mi
Dew point29°
Wed, 1299° / 65°0
99 °
Josephson, Wednesday, 12 August
Clear. High 99°, low 65°.
Pressure29.80 inHg
Wind11.2 mph NW
Humidity16%
Visibility6.2 mi
Dew point38°
Thu, 1397° / 63°0
97 °
Josephson, Thursday, 13 August
Overcast. High 97°, low 63°.
Pressure29.74 inHg
Wind8.9 mph NW
Humidity18%
Visibility—
Dew point37°
Fri, 1495° / 63°0
95 °
Josephson, Friday, 14 August
Overcast. High 95°, low 63°.
Pressure29.83 inHg
Wind7.2 mph W
Humidity15%
Visibility—
Dew point31°
Sat, 1592° / 74°0.01
92 °
Josephson, Saturday, 15 August
Light rain. High 92°, low 74°.
Pressure29.97 inHg
Wind19.1 mph NW
Humidity24%
Visibility—
Dew point43°
Sun, 16102° / 64°0
102 °
Josephson, Sunday, 16 August
Clear. High 102°, low 64°.
Pressure29.94 inHg
Wind12.6 mph W
Humidity24%
Visibility—
Dew point45°
Mon, 17100° / 63°0
100 °
Josephson, Monday, 17 August
Overcast. High 100°, low 63°.
Pressure29.97 inHg
Wind7.1 mph E
Humidity14%
Visibility—
Dew point33°
Tue, 1888° / 62°0.14
88 °
Josephson, Tuesday, 18 August
Rain. High 88°, low 62°.
Pressure30.12 inHg
Wind21.5 mph W
Humidity55%
Visibility—
Dew point57°
Wed, 1998° / 64°0
98 °
Josephson, Wednesday, 19 August
Partly cloudy. High 98°, low 64°.
Pressure29.94 inHg
Wind7.6 mph N
Humidity21%
Visibility—
Dew point41°
Thu, 20100° / 70°0
100 °
Josephson, Thursday, 20 August
Clear. High 100°, low 70°.
Pressure29.85 inHg
Wind10.3 mph N
Humidity18%
Visibility—
Dew point39°
Fri, 21102° / 67°0
102 °
Josephson, Friday, 21 August
Clear. High 102°, low 67°.
Pressure29.85 inHg
Wind11 mph NW
Humidity18%
Visibility—
Dew point39°
Sat, 22106° / 68°0
106 °
Josephson, Saturday, 22 August
Clear. High 106°, low 68°.
Pressure29.85 inHg
Wind7.5 mph NW
Humidity16%
Visibility—
Dew point37°
Sun, 23101° / 71°0
101 °
Josephson, Sunday, 23 August
Overcast. High 101°, low 71°.
Pressure29.80 inHg
Wind11.3 mph NE
Humidity15%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2486° / 61°0.01
86 °
Josephson, Monday, 24 August
Climate normal for this date — 60-year average.
Average high86°
Average low61°
Average precipitation0.01 in
Chance of precipitation8%
Record high101° (1966)
Record low48° (1992)
Tue, 2587° / 61°0.01
87 °
Josephson, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low61°
Average precipitation0.01 in
Chance of precipitation5%
Record high97° (1996)
Record low47° (1992)
Wed, 2687° / 61°0.01
87 °
Josephson, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low61°
Average precipitation0.01 in
Chance of precipitation7%
Record high102° (2010)
Record low47° (1993)
Thu, 2787° / 61°0.02
87 °
Josephson, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low61°
Average precipitation0.02 in
Chance of precipitation5%
Record high99° (2009)
Record low49° (1993)
Fri, 2887° / 60°0
87 °
Josephson, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low60°
Average precipitation0 in
Chance of precipitation2%
Record high100° (2009)
Record low50° (1960)
Sat, 2988° / 62°0
88 °
Josephson, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high88°
Average low62°
Average precipitation0 in
Chance of precipitation2%
Record high99° (2017)
Record low48° (1965)
Sun, 3086° / 61°0
86 °
Josephson, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low61°
Average precipitation0 in
Chance of precipitation5%
Record high101° (2022)
Record low45° (1965)
Mon, 3184° / 59°0.01
84 °
Josephson, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low59°
Average precipitation0.01 in
Chance of precipitation3%
Record high106° (2022)
Record low46° (1965)
Tue, 0186° / 59°0
86 °
Josephson, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high86°
Average low59°
Average precipitation0 in
Chance of precipitation2%
Record high100° (2025)
Record low47° (1999)
Wed, 0285° / 59°0.01
85 °
Josephson, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low59°
Average precipitation0.01 in
Chance of precipitation2%
Record high101° (2022)
Record low42° (1964)
Thu, 0385° / 59°0.01
85 °
Josephson, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low59°
Average precipitation0.01 in
Chance of precipitation3%
Record high99° (2017)
Record low48° (1964)
Fri, 0485° / 59°0.01
85 °
Josephson, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low59°
Average precipitation0.01 in
Chance of precipitation7%
Record high100° (2020)
Record low48° (1965)
Sat, 0585° / 59°0.03
85 °
Josephson, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high85°
Average low59°
Average precipitation0.03 in
Chance of precipitation13%
Record high102° (2020)
Record low49° (1996)
Sun, 0684° / 58°0.02
84 °
Josephson, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high84°
Average low58°
Average precipitation0.02 in
Chance of precipitation8%
Record high102° (2022)
Record low44° (1996)
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 Josephson, 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 Josephson, 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.