As of 06:11 MDT

May, ID weather in December

39°

May, Wednesday, 7 October, 06:11

Clear. Feels like 39°. High 78°, low 39°.

Pressure30.21 inHg

Wind0.4 mph E

Humidity56%

Visibility6.2 mi

Dew point26°

See detailed hourly forecast

In December, May, ID averages a high of 27° and a low of 10.9°. About 1.5 inches of precipitation fall over the month (10 wet days). The record high is 55.4° (2021) and the record low -33.5° (1990). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	31.3°	14.2°	50%	50.9° (2021)	-13.4° (1991)
2	31.8°	14.5°	43%	55.4° (2021)	-10.1° (2004)
3	30.9°	13.5°	33%	51.3° (2021)	-24.7° (2009)
4	30°	12.9°	38%	49.6° (2021)	-21.8° (2013)
5	28.2°	11.5°	27%	48.9° (2023)	-26.5° (1972)
6	28.8°	11.8°	27%	48° (2008)	-18.4° (1960)
7	28°	12°	28%	45.3° (2008)	-17.3° (2005)
8	26.4°	9.9°	33%	45.5° (1976)	-29° (1978)
9	27.1°	9.5°	28%	46.8° (2025)	-32.6° (1972)
10	28.6°	12.2°	27%	50.9° (2025)	-26.5° (1972)
11	28°	10.6°	23%	52.2° (2025)	-25.2° (1985)
12	28.6°	12.7°	42%	49.1° (2025)	-18.4° (1961)
13	28°	13.1°	33%	45.7° (2025)	-11.6° (1967)
14	26.8°	11.5°	28%	48° (2025)	-26.5° (1967)
15	26.8°	10.2°	28%	47.3° (2025)	-16.8° (1967)
16	26.8°	10.9°	30%	50.2° (2025)	-15.5° (1965)
17	26.1°	9.9°	28%	44.2° (1976)	-26.3° (1964)
18	25.7°	8.4°	25%	45° (2024)	-15.5° (2005)
19	25.7°	9.1°	27%	45° (2025)	-15.7° (1997)
20	25.9°	10.2°	23%	44.6° (2024)	-23.8° (1998)
21	26.2°	11.7°	37%	45.1° (2024)	-26.3° (1998)
22	25.2°	9.7°	27%	42.6° (2025)	-33.5° (1990)
23	24.4°	9.5°	28%	47.8° (2025)	-25.4° (1983)
24	25.3°	9.7°	28%	49.8° (2025)	-24.7° (1983)
25	25.7°	10°	27%	48.2° (2025)	-18.2° (1997)
26	25.3°	10.8°	30%	43.3° (1976)	-10.1° (1978)
27	25.2°	10.6°	25%	45.7° (1980)	-10.3° (1988)
28	25.2°	10.9°	33%	41° (1980)	-9.4° (1982)
29	25.2°	9°	40%	40.3° (1996)	-15.7° (1978)
30	24.6°	9.9°	38%	42.6° (1980)	-29.2° (1978)
31	23.9°	7.7°	33%	44.1° (2025)	-27.4° (1978)