As of 06:55 MDT

Weather in Casto, ID

33°

Casto, Saturday, 10 October, 06:55

Overcast. Feels like 29°. High 54°, low 32°.

Pressure29.59 inHg

Wind4.1 mph S

Humidity77%

Visibility6.2 mi

Dew point27°

See detailed hourly forecast

Monthly outlook for Casto, ID: average high 47.9°, average low 28.9°. That is 2.7° below the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 17 October (61.6°), the coolest 13 October (21.9°).

47.9°/28.9°

Average high / low

−2.7°

Below normal

4 / 4

Wet days / normal

1.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 October – 19 October	50.9°	53.9°	-1.6°
20 October – 29 October	42.8°	49.3°	-3.7°
30 October – 8 November	at normal	43.9°	—

October records over 66 years

82.2°2 October 2010All-time high

-8.5°27 October 1970All-time low

Sun, 1144° / 27°

0.76

44 °

Casto, Sunday, 11 October

Snow. High 44°, low 27°.

Pressure29.65 inHg

Wind2.9 mph NE

Humidity88%

Visibility6.2 mi

Dew point35°

Mon, 1236° / 27°

0.08

36 °

Casto, Monday, 12 October

Snow. High 36°, low 27°.

Pressure29.91 inHg

Wind2.8 mph N

Humidity81%

Visibility6.2 mi

Dew point30°

Tue, 1345° / 22°

45 °

Casto, Tuesday, 13 October

Clear. High 45°, low 22°.

Pressure30.03 inHg

Wind2.5 mph N

Humidity69%

Visibility6.2 mi

Dew point29°

Wed, 1448° / 24°

48 °

Casto, Wednesday, 14 October

Clear. High 48°, low 24°.

Pressure30.15 inHg

Wind3.4 mph NW

Humidity57%

Visibility—

Dew point24°

Thu, 1552° / 28°

52 °

Casto, Thursday, 15 October

Clear. High 52°, low 28°.

Pressure30.33 inHg

Wind3.4 mph N

Humidity49%

Visibility—

Dew point24°

Fri, 1653° / 28°

53 °

Casto, Friday, 16 October

Clear. High 53°, low 28°.

Pressure30.42 inHg

Wind4.3 mph N

Humidity28%

Visibility—

Dew point14°

Sat, 1762° / 34°

62 °

Casto, Saturday, 17 October

Partly cloudy. High 62°, low 34°.

Pressure30.21 inHg

Wind4.4 mph SW

Humidity18%

Visibility—

Dew point10°

Sun, 1860° / 38°

60 °

Casto, Sunday, 18 October

Overcast. High 60°, low 38°.

Pressure30.03 inHg

Wind14.2 mph W

Humidity22%

Visibility—

Dew point15°

Mon, 1957° / 36°

57 °

Casto, Monday, 19 October

Overcast. High 57°, low 36°.

Pressure29.97 inHg

Wind13.4 mph SW

Humidity29%

Visibility—

Dew point20°

Tue, 2055° / 37°

55 °

Casto, Tuesday, 20 October

Overcast. High 55°, low 37°.

Pressure29.83 inHg

Wind15.3 mph SW

Humidity27%

Visibility—

Dew point18°

Wed, 2139° / 26°

0.02

39 °

Casto, Wednesday, 21 October

Light snow. High 39°, low 26°.

Pressure29.94 inHg

Wind11.5 mph W

Humidity58%

Visibility—

Dew point22°

Thu, 2237° / 25°

0.02

37 °

Casto, Thursday, 22 October

Light snow. High 37°, low 25°.

Pressure30.15 inHg

Wind7.9 mph SW

Humidity65%

Visibility—

Dew point25°

Fri, 2342° / 25°

0.14

42 °

Casto, Friday, 23 October

Snow. High 42°, low 25°.

Pressure30.06 inHg

Wind17.5 mph W

Humidity93%

Visibility—

Dew point35°

Sat, 2443° / 24°

43 °

Casto, Saturday, 24 October

Overcast. High 43°, low 24°.

Pressure30.12 inHg

Wind7.3 mph SW

Humidity42%

Visibility—

Dew point18°

Sun, 2540° / 29°

0.44

40 °

Casto, Sunday, 25 October

Snow. High 40°, low 29°.

Pressure29.62 inHg

Wind18 mph SW

Humidity72%

Visibility—

Dew point26°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2648° / 31°

0.07

48 °

Casto, Monday, 26 October

Climate normal for this date — 60-year average.

Average high48°

Average low31°

Average precipitation0.07 in

Chance of precipitation35%

Record high63° (1999)

Record low11° (2020)

Tue, 2748° / 28°

0.04

48 °

Casto, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high48°

Average low28°

Average precipitation0.04 in

Chance of precipitation27%

Record high64° (2008)

Record low-8° (1970)

Wed, 2847° / 28°

0.09

47 °

Casto, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high47°

Average low28°

Average precipitation0.09 in

Chance of precipitation38%

Record high65° (1962)

Record low1° (1970)

Thu, 2946° / 27°

0.06

46 °

Casto, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high46°

Average low27°

Average precipitation0.06 in

Chance of precipitation27%

Record high66° (1962)

Record low-8° (2019)

Fri, 3045° / 26°

0.05

45 °

Casto, Friday, 30 October

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.05 in

Chance of precipitation28%

Record high65° (1962)

Record low-7° (2019)

Sat, 3145° / 27°

0.05

45 °

Casto, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.05 in

Chance of precipitation30%

Record high62° (2012)

Record low4° (2002)

Sun, 0145° / 26°

0.06

45 °

Casto, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.06 in

Chance of precipitation27%

Record high62° (2020)

Record low-6° (2004)

Mon, 0244° / 25°

0.07

44 °

Casto, Monday, 2 November

Climate normal for this date — 60-year average.

Average high44°

Average low25°

Average precipitation0.07 in

Chance of precipitation35%

Record high64° (2020)

Record low-4° (1961)

Tue, 0345° / 25°

0.05

45 °

Casto, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high45°

Average low25°

Average precipitation0.05 in

Chance of precipitation18%

Record high63° (2020)

Record low-9° (1994)

Wed, 0444° / 26°

0.07

44 °

Casto, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high44°

Average low26°

Average precipitation0.07 in

Chance of precipitation43%

Record high60° (1980)

Record low-3° (1973)

Thu, 0544° / 25°

0.07

44 °

Casto, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high44°

Average low25°

Average precipitation0.07 in

Chance of precipitation38%

Record high63° (1980)

Record low-5° (1971)

Fri, 0643° / 25°

0.09

43 °

Casto, Friday, 6 November

Climate normal for this date — 60-year average.

Average high43°

Average low25°

Average precipitation0.09 in

Chance of precipitation38%

Record high60° (2020)

Record low-8° (1971)

Sat, 0742° / 23°

0.08

42 °

Casto, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high42°

Average low23°

Average precipitation0.08 in

Chance of precipitation38%

Record high58° (1976)

Record low0° (2017)

Sun, 0842° / 22°

0.1

42 °

Casto, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high42°

Average low22°

Average precipitation0.1 in

Chance of precipitation40%

Record high60° (2016)

Record low-3° (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 Casto, 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 Casto, 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.