As of 12:37 MDT

Casto, ID weather in April

61°

Casto, Wednesday, 7 October, 12:37

Clear. Feels like 59°. High 67°, low 29°.

Pressure30.09 inHg

Wind3.7 mph NW

Humidity27%

Visibility6.2 mi

Dew point28°

See detailed hourly forecast

In April, Casto, ID averages a high of 45.5° and a low of 27.4°. About 2.4 inches of precipitation fall over the month (13 wet days). The record high is 70° (1977) and the record low 5.9° (2024). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	41.9°	24.4°	43%	57.9° (1966)	10.9° (2025)
2	41°	24.8°	47%	55.8° (1990)	9.5° (1975)
3	42.3°	23°	37%	57.6° (2021)	9.5° (2001)
4	43.2°	25°	40%	55.2° (2021)	9° (2025)
5	44.2°	25.9°	38%	58.1° (1960)	11.3° (2025)
6	44.2°	26.8°	55%	59.2° (1977)	9.5° (2022)
7	44.6°	26.6°	45%	59.2° (1985)	11.8° (1992)
8	45°	27°	45%	59.9° (1977)	10.2° (2024)
9	44.2°	26.8°	53%	58.6° (2016)	14.4° (2010)
10	44.8°	26.8°	37%	61.3° (2023)	14.4° (2022)
11	45°	26.8°	43%	59.9° (1988)	9.1° (1991)
12	44.2°	27.5°	43%	62.8° (1988)	14.4° (2021)
13	44.4°	25.9°	45%	60.8° (1985)	8.2° (1968)
14	44.8°	26.4°	43%	60.3° (1985)	12.6° (2022)
15	44.8°	26.4°	43%	60.8° (2025)	10.2° (1977)
16	46.2°	27.1°	37%	59.4° (1984)	12° (1960)
17	45.9°	28°	45%	61.9° (1994)	14.4° (1960)
18	45.3°	28°	47%	62.1° (1994)	5.9° (2024)
19	45.5°	27.1°	45%	62.2° (1962)	6.1° (1966)
20	46.4°	27.5°	42%	63.5° (1994)	12° (1966)
21	47.5°	28.9°	42%	63.1° (1994)	14.2° (2008)
22	48.2°	29.1°	35%	62.2° (2012)	15.3° (2008)
23	47.7°	29.7°	45%	64.4° (2012)	16.9° (1968)
24	47.3°	29.5°	48%	67.3° (1977)	14.4° (1985)
25	46.9°	29.5°	47%	70° (1977)	17.6° (1985)
26	47.1°	29.3°	50%	66.6° (1987)	16.5° (1991)
27	48°	28.9°	42%	65.8° (2018)	15.4° (1991)
28	48.2°	29.5°	37%	64.8° (2023)	16.2° (1991)
29	48°	29.1°	47%	66° (2023)	14.9° (1962)
30	48.2°	29.7°	47%	67.6° (2023)	10.6° (2024)