WIZ064-262100-
Jefferson-
Including the cities of Watertown, Fort Atkinson, and Jefferson
731 AM CDT Sun Jul 26 2026


...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM CDT
THIS EVENING...


.TODAY...Very warm and humid. Partly sunny. Patchy fog in the
morning. Highs in the lower 90s. Southwest winds up to 10 mph.
Highest heat index readings 97 to 102 in the afternoon.

.TONIGHT...Partly cloudy through around midnight then becoming
mostly cloudy. Slight chance of light showers through around
midnight. Chance of thunderstorms through the night. Light
showers likely after midnight. Lows around 70. Southwest winds up
to 10 mph. Chance of precipitation 70 percent. Highest heat index
readings 95 to 100 in the evening.

.MONDAY...Very warm and humid. Partly sunny. Chance of showers
and thunderstorms in the morning. Chance of showers and
thunderstorms late in the afternoon. Highs in the lower 90s.
Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.
Highest heat index readings 98 to 103 in the late morning and
afternoon.

.MONDAY NIGHT...Partly cloudy. Lows in the upper 60s. North winds
5 to 10 mph. Highest heat index readings 95 to 98 in the evening.

.TUESDAY...Mostly sunny. Highs in the mid 80s. North winds 5 to
10 mph.

.TUESDAY NIGHT...Mostly clear. Lows in the upper 50s.

.WEDNESDAY...Sunny. Highs in the mid 80s.

.WEDNESDAY NIGHT...Mostly clear. Lows around 60.

.THURSDAY...Sunny in the morning, then partly sunny with a
20 percent chance of light showers in the afternoon. Highs in the
upper 80s.

.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of light
showers. Lows in the lower 60s.

.FRIDAY...Partly sunny. Chance of light showers in the morning,
then chance of light showers and slight chance of thunderstorms
in the afternoon. Highs in the mid 80s. Chance of precipitation
30 percent.

.FRIDAY NIGHT...Partly cloudy. Chance of light showers and slight
chance of thunderstorms through around midnight, then chance of
light showers after midnight. Lows in the mid 60s. Chance of
precipitation 30 percent.

.SATURDAY...Mostly sunny. Slight chance of light showers in the
morning, then slight chance of light showers and thunderstorms in
the afternoon. Highs in the mid 80s. Chance of precipitation
20 percent.

WIZ063-262100-
Madison-Dane WI
43.14N  89.35W Elev. 873 ft
646 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                      92          71          92          68          85
Temp             75 81 87 91 89 81 75 74 73 80 87 90 87 78 73 70 68 75 81 83 81
Dewpt            71 74 75 75 75 75 72 71 70 73 75 75 76 72 69 67 64 65 64 63 63
RH               87 79 68 60 64 82 90 90 90 79 68 62 70 82 87 90 87 71 56 51 54
Wind dir          S  S  S SW SW SW  S SW  S  S  W  W NW NW  N  N  N  N  N  N NE
Wind spd          2  4  6  8  5  4  3  5  6  9 10 10  8  8  6  8  6  8  9  8  5
Clouds           B2 B1 B1 SC SC SC B1 B1 B2 SC SC SC FW SC SC SC SC FW FW FW FW
PoP 12hr                     10          50          50           5           0
QPF 12hr                      0        0.06        0.19           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          C  C  C
Tstms                               C  C  C
Obvis            PF
Heat index          86 96102 99 87          84 96101 98                83 84 82
Max heat               96   102    95          96   102    90          83    84
Heat                    Y  Y  Y


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          61    85      62    86      65    85      65    85
Temp          66 63 81 81   67 64 82 82   70 67 81 81   70 67 82 81
Dewpt         59 58 61 63   61 61 65 65   64 64 67 66   64 64 65 64
PWind dir        NE     E      SE     S       S     S      SW     N
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW FW   FW FW FW SC   SC B1 B1 B1   SC SC SC SC
PoP 12hr          5     5      10    20      30    30      30    20
Rain shwrs                            S       C  C  C    C  S  S  S
Tstms                                               S    S        S