South Dakota · THREADEX · 1942–2026

Rapid City, SD

44.046°N, 103.054°W · station RAPthr · 85 years of record
104°F
forecast high · Jul 13

7-Day Forecast

NWS NDFD forecast high temperature for Rapid City.
104°MON7/13102°TUE7/14101°WED7/15101°THU7/16100°FRI7/17100°SAT7/1894°SUN7/19

This Day in History · Jul 13

Today ranks

#3 / 83
warmest Jul 13 in 83 yrs of record

Hottest Jul 13 ever

105°F
set in 2003

Coolest Jul 13 ever

63°F
set in 1992

Hottest Jul 13 — Year by Year

Every year's high on Jul 13 at Rapid City. The forecast line shows where today lands; the ringed bar is the hottest on record.
63841051943: 76°F1944: 81°F1945: 87°F1946: 86°F1947: 88°F1948: 82°F1949: 81°F1950: 84°F1951: 85°F1952: 71°F1953: 90°F1954: 97°F1955: 88°F1956: 83°F1957: 89°F1958: 86°F1959: 90°F1960: 85°F1961: 78°F1962: 74°F1963: 84°F1964: 83°F1965: 76°F1966: 86°F1967: 74°F1968: 87°F1969: 86°F1970: 87°F1971: 82°F1972: 78°F1973: 75°F1974: 103°F1975: 86°F1976: 101°F1977: 93°F1978: 93°F1979: 77°F1980: 99°F1981: 81°F1982: 84°F1983: 98°F1984: 90°F1985: 93°F1986: 86°F1987: 85°F1988: 94°F1989: 90°F1990: 82°F1991: 84°F1992: 63°F1993: 65°F1994: 76°F1995: 89°F1996: 81°F1997: 79°F1998: 93°F1999: 93°F2000: 96°F2001: 86°F2002: 99°F2003: 105°F2004: 87°F2005: 101°F2006: 95°F2007: 94°F2008: 78°F2009: 90°F2010: 91°F2011: 79°F2012: 92°F2013: 94°F2014: 85°F2015: 91°F2016: 88°F2017: 90°F2018: 85°F2019: 87°F2020: 91°F2021: 81°F2022: 92°F2023: 88°F2024: 104°F2025: 91°F104° forecast194320252003

The Numbers

Forecast high · Jul 13104°F
Hottest this date since2024
This-date record105°F
This-date rank#3 of 83
Hottest at any time since2025
All-time record111°F (2006)
Odds to tie/break0.0% (daily)
Period of record1942–2026

Record Book

The hottest and coldest ever recorded at Rapid City in each calendar month, and for the whole 1942–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan76°F1987-27°F1943
Feb75°F1988-31°F1996
Mar87°F2026-21°F1996
Apr93°F1989-1°F2020
May98°F196918°F1950
Jun109°F200231°F1951
Jul111°F200639°F1959
Aug107°F200737°F2020
Sep104°F196018°F1942
Oct96°F2011-7°F2020
Nov83°F1999-19°F1959
Dec75°F1965-30°F1990
All-time111°F2006-31°F1996

2026 Records So Far

Records set or tied at Rapid City so far this year — through Jul 11.

Record Highs in 2026

10 broke
plus 1 tied — daily record highs set this year
Monthly high record this year: Mar (87°F)

Record Lows in 2026

1 broke
plus 1 tied — daily record lows set this year

Hot Streaks

Current run

2 days
consecutive days with a high ≥ 90°F

Longest ever

22 days
record run, ended Jul 25 1974

So far in 2026

16 days
days with a high ≥ 90°F this year

Climate Normals

Normal high & low by month, from Rapid City's own 1991–2020 record. Today's normal high: 87°F · forecast is +17° vs normal.
Jan: 36°FJan: 13°FFeb: 39°FFeb: 14°FMar: 49°FMar: 23°FApr: 57°FApr: 31°FMay: 67°FMay: 42°FJun: 78°FJun: 52°FJul: 87°FJul: 58°FAug: 86°FAug: 56°FSep: 77°FSep: 47°FOct: 61°FOct: 34°FNov: 48°FNov: 22°FDec: 38°FDec: 14°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise4:21 AM
Sunset7:34 PM
Solar noon11:58 AM
Daylight15h 13m · losing 9 min/wk
Local standard time (no DST), level horizon.

Location

44.05°N, 103.05°W

Nearby Stations

Valentine, NE149 mi SEScottsbluff, NE152 mi SMobridge, SD166 mi NECasper, WY188 mi WSheridan, WY199 mi WCheyenne, WY218 mi SW

The Last 6 Weeks

Rapid City's observed daily high for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
Rapid City, SD — last six weeks of daily high

2026 So Far

Every day this year against Rapid City's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.
Rapid City, SD — 2026 daily high trace
Download year chart

Every Day Since 1942

Each cell is one day's high at Rapid City, coloured by temperature — 85 years of record, so heat waves read as warm streaks and cold snaps as blue.
Rapid City, SD daily high heat map 1942–2026

Days Above the Mark

How many days a year hit a given high at Rapid City — counted through Jul 13 each year, so you can see whether 2026 is running hot. Pick a threshold:
16 days ≥90°F so far in 2026 — tied for the 8th most in 85 years. Normal for this point: 8. Record: 29 in 1988.

Share Card

A ready-to-share summary of Rapid City's outlook — post it, or link this page.
Rapid City, SD hot share card
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part of Weather Trader · supported by Substack Subscribers · data: NWS NDFD forecast + NOAA/ACIS ThreadEx records · updated 2026-07-13T11:58:11Z
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