Monthly outlook for Simplot, ID: average high 69.3°, average low 45.6°. That is 1.3° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 9 October (86.3°), the coolest 15 October (36.6°).
69.3°/45.6°
Average high / low
+1.3°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
68.8°
67.9°
+0.5°
17 October – 26 October
70.2°
63.9°
+3.5°
27 October – 5 November
at normal
57.7°
—
October records over 66 years
93.6°1 October 1997All-time high
22.1°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Marsing (9 mi).
Thu, 0886° / 49°0
86 °
Simplot, Thursday, 8 October
Clear. High 86°, low 49°.
Pressure30.00 inHg
Wind1.9 mph NW
Humidity21%
Visibility6.2 mi
Dew point32°
Fri, 0986° / 56°0
86 °
Simplot, Friday, 9 October
Partly cloudy. High 86°, low 56°.
Pressure29.65 inHg
Wind1.3 mph SW
Humidity20%
Visibility6.2 mi
Dew point32°
Sat, 1060° / 52°0
60 °
Simplot, Saturday, 10 October
Overcast. High 60°, low 52°.
Pressure29.68 inHg
Wind9.8 mph NW
Humidity41%
Visibility6.2 mi
Dew point31°
Sun, 1161° / 42°0
61 °
Simplot, Sunday, 11 October
Clear. High 61°, low 42°.
Pressure29.83 inHg
Wind11.5 mph NW
Humidity42%
Visibility—
Dew point30°
Mon, 1257° / 43°0
57 °
Simplot, Monday, 12 October
Overcast. High 57°, low 43°.
Pressure29.97 inHg
Wind10.9 mph NW
Humidity42%
Visibility—
Dew point29°
Tue, 1371° / 46°0
71 °
Simplot, Tuesday, 13 October
Partly cloudy. High 71°, low 46°.
Pressure29.88 inHg
Wind9.1 mph SW
Humidity41%
Visibility—
Dew point36°
Wed, 1459° / 45°0
59 °
Simplot, Wednesday, 14 October
Clear. High 59°, low 45°.
Pressure30.06 inHg
Wind19.2 mph NW
Humidity29%
Visibility—
Dew point21°
Thu, 1559° / 37°0
59 °
Simplot, Thursday, 15 October
Clear. High 59°, low 37°.
Pressure30.39 inHg
Wind7.3 mph NW
Humidity32%
Visibility—
Dew point21°
Fri, 1664° / 39°0
64 °
Simplot, Friday, 16 October
Overcast. High 64°, low 39°.
Pressure30.39 inHg
Wind16.8 mph SE
Humidity17%
Visibility—
Dew point10°
Sat, 1767° / 44°0
67 °
Simplot, Saturday, 17 October
Overcast. High 67°, low 44°.
Pressure30.18 inHg
Wind3.8 mph NW
Humidity16%
Visibility—
Dew point12°
Sun, 1869° / 43°0
69 °
Simplot, Sunday, 18 October
Clear. High 69°, low 43°.
Pressure30.12 inHg
Wind3.4 mph NW
Humidity16%
Visibility—
Dew point11°
Mon, 1972° / 46°0
72 °
Simplot, Monday, 19 October
Mostly clear. High 72°, low 46°.
Pressure30.09 inHg
Wind5.7 mph NW
Humidity16%
Visibility—
Dew point15°
Tue, 2073° / 48°0
73 °
Simplot, Tuesday, 20 October
Clear. High 73°, low 48°.
Pressure30.15 inHg
Wind5.3 mph SE
Humidity15%
Visibility—
Dew point14°
Wed, 2171° / 47°0
71 °
Simplot, Wednesday, 21 October
Clear. High 71°, low 47°.
Pressure30.24 inHg
Wind15 mph SE
Humidity15%
Visibility—
Dew point14°
Thu, 2270° / 46°0
70 °
Simplot, Thursday, 22 October
Clear. High 70°, low 46°.
Pressure30.06 inHg
Wind9.7 mph SE
Humidity17%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2362° / 45°0.06
62 °
Simplot, Friday, 23 October
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.06 in
Chance of precipitation25%
Record high80° (1960)
Record low30° (1984)
Sat, 2462° / 43°0.04
62 °
Simplot, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high62°
Average low43°
Average precipitation0.04 in
Chance of precipitation18%
Record high75° (1977)
Record low32° (1975)
Sun, 2562° / 43°0.04
62 °
Simplot, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high62°
Average low43°
Average precipitation0.04 in
Chance of precipitation28%
Record high79° (1990)
Record low29° (2020)
Mon, 2661° / 43°0.05
61 °
Simplot, Monday, 26 October
Climate normal for this date — 60-year average.
Average high61°
Average low43°
Average precipitation0.05 in
Chance of precipitation23%
Record high76° (1986)
Record low27° (2020)
Tue, 2760° / 41°0.02
60 °
Simplot, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high60°
Average low41°
Average precipitation0.02 in
Chance of precipitation10%
Record high78° (2003)
Record low29° (1970)
Wed, 2859° / 42°0.05
59 °
Simplot, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.05 in
Chance of precipitation28%
Record high77° (2003)
Record low26° (2019)
Thu, 2958° / 42°0.04
58 °
Simplot, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.04 in
Chance of precipitation18%
Record high77° (1968)
Record low23° (1971)
Fri, 3058° / 39°0.02
58 °
Simplot, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.02 in
Chance of precipitation15%
Record high74° (2008)
Record low24° (2019)
Sat, 3158° / 40°0.01
58 °
Simplot, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.01 in
Chance of precipitation15%
Record high76° (1988)
Record low22° (2002)
Sun, 0158° / 39°0.02
58 °
Simplot, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.02 in
Chance of precipitation18%
Record high74° (1988)
Record low24° (2002)
Mon, 0256° / 39°0.04
56 °
Simplot, Monday, 2 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (1965)
Record low28° (2019)
Tue, 0357° / 38°0.02
57 °
Simplot, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low38°
Average precipitation0.02 in
Chance of precipitation10%
Record high73° (1983)
Record low26° (2002)
Wed, 0456° / 39°0.04
56 °
Simplot, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.04 in
Chance of precipitation27%
Record high70° (1969)
Record low26° (1995)
Thu, 0556° / 39°0.04
56 °
Simplot, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.04 in
Chance of precipitation23%
Record high72° (1975)
Record low25° (1971)
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 Simplot, 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 Simplot, 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.