IAZ064-262100-
Johnson-
Including the city of Iowa City
802 AM CDT Sun Jul 26 2026


...EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING...

...EXTREME HEAT WATCH IN EFFECT FROM THIS EVENING THROUGH MONDAY
EVENING...


.REST OF TODAY...Patchy fog early this morning. Cloudy with a
slight chance of showers early this morning, then partly sunny
this afternoon. Hot with highs in the lower 90s. Southwest winds
5 to 10 mph. Chance of rain 20 percent. Heat index values up to
111 this afternoon.

.TONIGHT...Partly cloudy in the evening, then clearing. Humid
with lows in the upper 70s. Southwest winds 5 to 10 mph. Heat
index values up to 109 early in the evening.

.MONDAY...Sunny, hot with highs in the mid 90s. Southwest winds
5 to 10 mph with gusts up to 20 mph. Heat index values up to 111.

.MONDAY NIGHT...Mostly clear. Humid with lows in the lower 70s.
Northwest winds 5 to 10 mph. Heat index values up to 110 early in
the evening.

.TUESDAY...Sunny with highs in the upper 80s. Northeast winds
5 to 10 mph.

.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows in
the upper 60s. Highs in the upper 80s.

.THURSDAY...Mostly sunny. Highs in the upper 80s.

.THURSDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows in the upper 60s.

.FRIDAY...Mostly sunny with a chance of showers. Highs in the mid
80s. Chance of rain 30 percent.

.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.

.SATURDAY...Sunny. Highs in the upper 80s.

IAZ064-262100-
Iowa City-Johnson IA
41.63N  91.54W Elev. 668 ft
801 AM CDT Sun Jul 26 2026

Date             Sun 07/26/26            Mon 07/27/26            Tue 07/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      94          78          96          73          89
Temp                83 90 93 92 85 82 80 78 87 93 96 93 84 78 75 73 81 86 89 87
Dewpt               77 78 79 78 76 76 74 73 76 77 77 77 74 71 70 70 71 70 69 68
RH                  82 68 64 64 75 82 82 85 70 60 55 60 72 79 84 90 72 59 52 53
Wind dir             S SW  W SW  S SW SW  S SW SW  W NW NW NW  N  N NE NE  N NE
Wind spd             5  8  9  8  8  8  8  8 10 11 12 10  9  6  6  5  8  9  9  9
Clouds              OV B1 SC SC SC FW FW FW FW FW FW FW FW FW FW FW SC SC FW FW
PoP 12hr                     20           5          10           0           0
QPF 12hr                      0        0.02           0           0           0
Rain shwrs
Tstms
Heat index          92104110108 93 88 82    97107111107 91          84 91 93 90
Max heat              105   112   106    87   107   111   102          91    93


Date          Wed 07/29/26  Thu 07/30/26  Fri 07/31/26  Sat 08/01/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          68    89      67    89      69    84      67    87
Temp          73 68 86 87   72 68 86 86   74 69 82 82   71 68 85 85
Dewpt         67 65 66 66   66 65 66 65   66 66 67 67   67 66 66 65
PWind dir        NE    SE      SE     S       S     W       N     N
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW FW   CL FW FW SC   B1 SC SC SC   SC SC SC FW
PoP 12hr          5     0       0    10      20    30      20    20
Rain shwrs                                 S  S  C  C    S  S  S
Tstms                                               S    S  S