As of 12:00 CDT

Tiffin, IA weather in August

81°

Tiffin, Sunday, 9 August, 12:00

Overcast. Feels like 87°. High 92°, low 67°.

Pressure29.88 inHg

Wind13 mph S

Humidity80%

Visibility6.2 mi

Dew point75°

See detailed hourly forecast

In August, Tiffin, IA averages a high of 81.1° and a low of 64.8°. About 4.0 inches of precipitation fall over the month (9 wet days). The record high is 102° (1988) and the record low 44.8° (1986). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	82.6°	65.3°	17%	99.1° (1987)	55.2° (1968)
2	82.2°	66.2°	32%	97° (1964)	54.9° (1968)
3	82.2°	65.7°	32%	97.5° (1988)	54.5° (1976)
4	81.7°	65.8°	38%	96.6° (1988)	51.3° (1978)
5	80.6°	65.3°	35%	94.1° (2018)	51.3° (1978)
6	81.3°	64.8°	30%	93.4° (1979)	52.9° (2004)
7	81.7°	65.7°	33%	94.1° (1988)	51.6° (1990)
8	81.9°	66.2°	30%	95.5° (1988)	54.7° (1989)
9	81.9°	65.8°	35%	94.1° (2005)	50.9° (1972)
10	81°	65.3°	30%	98.1° (1983)	54.1° (2024)
11	80.1°	63.3°	30%	92.7° (1988)	52.3° (1967)
12	80.4°	63.9°	32%	92.1° (1995)	51.6° (1982)
13	80.6°	64.6°	22%	91.4° (1995)	52.9° (1992)
14	80.4°	64.4°	22%	97.5° (1988)	48.4° (1964)
15	80.8°	64.4°	30%	99.7° (1988)	48.2° (1992)
16	81.5°	64.6°	33%	102° (1988)	54.1° (1992)
17	81.3°	65.3°	33%	100.8° (1988)	55.4° (1962)
18	81°	64.6°	35%	96.3° (1983)	50.2° (1977)
19	81°	65.1°	33%	95.7° (1983)	52.3° (2004)
20	80.8°	64.2°	30%	97.3° (2003)	48.9° (1967)
21	81°	65.1°	32%	92.7° (1983)	52.7° (2004)
22	81°	64.2°	30%	92.1° (2012)	53.8° (2024)
23	80.6°	64.8°	28%	97.5° (2023)	52.5° (1966)
24	81.1°	64.4°	27%	96.3° (2023)	52° (1966)
25	81.5°	64.6°	32%	95.5° (2003)	52.9° (1966)
26	81.3°	65.1°	35%	95° (2003)	49.1° (1964)
27	81.3°	65.8°	30%	95.5° (2013)	53.6° (2025)
28	81.1°	64.2°	35%	96.3° (1984)	44.8° (1986)
29	81°	64.2°	28%	95.4° (1984)	46.6° (1986)
30	79.9°	63.7°	23%	97.5° (2013)	50.5° (1974)
31	79.3°	62.8°	22%	94.8° (2000)	46.9° (2009)