Rockford, IL

Illinois · Records since 1893–2026

☀️ 91°F Feels like 102°
Currently in Rockford
As of 7:00 PM CDT

Records for July 28

🔥 Record High

103°F

July 28, 1916

+19° from 84° normal

❄ Record Low

46°F

July 28, 1925

-18° from 64° normal
🌞 Normal high: 84°F 🌑 Normal low: 64°F 1991–2020 normals

All-Time Records — Rockford

🔥
112°F
Hottest Day Ever
Jul 14, 1936
-31°F
Coldest Day Ever
Jan 31, 2019
🌧
5.70"
Wettest Day Ever
Aug 14, 1987
13.5"
Most Snow in One Day
Mar 31, 1926

Top 10 Record Highs — July 28

# Temp Date
🏆 103°F July 28, 1916
2 100°F July 28, 1941
3 100°F July 28, 1931
4 99°F July 28, 1936
5 99°F July 28, 1927
6 97°F July 28, 1955
7 97°F July 28, 1935
8 96°F July 28, 1983
9 95°F July 28, 1988
10 94°F July 28, 1930

Top 5 Record Lows — July 28

# Temp Date
🥶 46°F July 28, 1925
2 52°F July 28, 1994
3 53°F July 28, 2018
4 53°F July 28, 2013
5 53°F July 28, 1981
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1893–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Rockford

threshold: 92°F (90th percentile of historical Jun–Aug highs)
4.4
Avg heat wave length
days (historical)
98°
Avg peak temp
during heat waves
9
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

116 of 207 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1893–2026
12
2026 so far
20
Avg/year 1970–2025
19
Avg/year (last 10 complete)
62
Most in a year (1921)

Average Daily High by Decade

Full year · complete decades only


Longest Heat Waves — Rockford

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 6, 1936 – Jul 18, 1936 13 112°F (Jul 14) 104°F 70°F
2 Jul 22, 1916 – Aug 1, 1916 11 105°F (Jul 31) 98°F 69°F
3 Jul 26, 1955 – Aug 4, 1955 10 103°F (Jul 27) 97°F 72°F
4 Aug 25, 1953 – Sep 3, 1953 10 102°F (Sep 1) 98°F 66°F
5 Jun 28, 1921 – Jul 7, 1921 10 100°F (Jul 4) 97°F 69°F
6 Jul 13, 1932 – Jul 22, 1932 10 100°F (Jul 15) 97°F 67°F
7 Jul 23, 1941 – Jul 31, 1941 9 102°F (Jul 29) 96°F 71°F
8 Jun 16, 1921 – Jun 24, 1921 9 95°F (Jun 18) 93°F 67°F
9 Jul 19, 1934 – Jul 26, 1934 8 107°F (Jul 24) 102°F 72°F
10 May 29, 1934 – Jun 5, 1934 8 106°F (May 31) 99°F 64°F

Heat Waves Per Year


Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

25
2026 so far
above-normal nights
39.5
Avg / summer
1970–2020
65
Most in a summer
1983

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Actual vs. 1991–2020 full-month and full-season normals

19.39"
2026 YTD
Normal: 21.97"
-2.58"
2.53"
July so far
July normal: 3.81"
-1.28"
8.41"
Summer so far
Summer normal: 13.23"
-4.82"
6
2026 heavy rain days
Days with ≥ 1.0"

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1970–2026)

Blue = above average · tan = below average · gold = 2026 (partial)

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")