Waterloo Weather in July
Average highs run from 92°F on July 1 to 92°F on July 31, and lows from 59°F to 59°F. Normal precipitation for the month is 0.01 in over about 0 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 92°F
- Average low
- 59°F
- Precipitation
- 0.01 in
- Record high
- 115°FJul 23, 2006
- Record low
- 49°FJul 4, 1999
- Chance of a freeze
- 0%
- Days of 90°F or more
- 21.4
- Daylight
- 14 h 45 min to 14 h 08 min
- Cloud cover
- 16%
- Humidity
- 44%
- Dew point
- 48°F
- Wind
- 9.2 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jul 1 | 92°F | 59°F | 109°F 2023 | 50°F 1955 | 2% |
| Jul 2 | 92°F | 59°F | 110°F 1950 | 50°F 1956 | 2% |
| Jul 3 | 92°F | 59°F | 109°F 1991 | 50°F 1951 | 2% |
| Jul 4 | 92°F | 59°F | 108°F 1991 | 49°F 1999 | 1% |
| Jul 5 | 92°F | 59°F | 110°F 2007 | 49°F 1955 | 1% |
| Jul 6 | 92°F | 59°F | 111°F 2024 | 49°F 1951 | 1% |
| Jul 7 | 92°F | 59°F | 107°F 1989 | 52°F 1999 | 1% |
| Jul 8 | 92°F | 59°F | 108°F 2017 | 52°F 2000 | 1% |
| Jul 9 | 92°F | 59°F | 107°F 1961 | 54°F 1955 | 1% |
| Jul 10 | 92°F | 59°F | 111°F 1961 | 52°F 1955 | 1% |
| Jul 11 | 93°F | 59°F | 113°F 1961 | 54°F 1951 | 1% |
| Jul 12 | 93°F | 59°F | 110°F 2024 | 51°F 1981 | 1% |
| Jul 13 | 93°F | 59°F | 110°F 1972 | 51°F 1951 | 1% |
| Jul 14 | 93°F | 59°F | 114°F 1972 | 51°F 1951 | 1% |
| Jul 15 | 93°F | 59°F | 108°F 1972 | 51°F 2001 | 1% |
| Jul 16 | 93°F | 59°F | 109°F 2023 | 53°F 1955 | 1% |
| Jul 17 | 93°F | 59°F | 110°F 2006 | 52°F 1955 | 1% |
| Jul 18 | 93°F | 59°F | 110°F 1961 | 50°F 1981 | 1% |
| Jul 19 | 93°F | 59°F | 111°F 1960 | 52°F 1957 | 1% |
| Jul 20 | 93°F | 59°F | 111°F 1960 | 52°F 1999 | 1% |
| Jul 21 | 93°F | 59°F | 111°F 1960 | 52°F 1949 | 1% |
| Jul 22 | 93°F | 59°F | 113°F 2006 | 52°F 2008 | 1% |
| Jul 23 | 93°F | 59°F | 115°F 2006 | 54°F 1950 | 1% |
| Jul 24 | 93°F | 59°F | 113°F 2006 | 52°F 1951 | 1% |
| Jul 25 | 93°F | 59°F | 113°F 2006 | 52°F 1951 | 1% |
| Jul 26 | 93°F | 59°F | 109°F 1975 | 52°F 1955 | 1% |
| Jul 27 | 93°F | 59°F | 109°F 1980 | 54°F 1951 | 1% |
| Jul 28 | 93°F | 59°F | 108°F 1952 | 54°F 2010 | 1% |
| Jul 29 | 93°F | 59°F | 108°F 1980 | 52°F 1999 | 1% |
| Jul 30 | 93°F | 59°F | 109°F 1977 | 54°F 2010 | 1% |
| Jul 31 | 92°F | 59°F | 107°F 1977 | 53°F 1981 | 1% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- July 1
- sunrise 5:46 AM, sunset 8:31 PM
- July 31
- sunrise 6:07 AM, sunset 8:15 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00045032 (Lodi), public domain. Records: NOAA GHCN-Daily, station USW00023237, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.