11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Mainly clear
23°
Feels like 23°
Wind↑ SE 11 km/h
Humidity 17 %
Evening
Mainly clear
20°
Feels like 20°
Wind↑ E 7 km/h
Humidity 26 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Mainly clear
23°
Feels like 23°
Wind↑ SE 11 km/h
Humidity 20 %
Evening
Mainly clear
22°
Feels like 22°
Wind↑ SE 7 km/h
Humidity 20 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Mainly clear
24°
Feels like 24°
Wind↑ S 17 km/h
Gusts27 km/h
Humidity 17 %
Evening
Clear sky
19°
Feels like 19°
Wind↑ SSW 11 km/h
Gusts34 km/h
Humidity 40 %
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Tucson forecast in charts · next 7 days
The week ahead: highs and lows
≈ A week close to the usual temperatures
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Tucson climate: what a normal year looks like
A normal year brings roughly 280 mm of rain — less than 94% of the towns of 20,000+ people we compared it with.
Day and night differ most in May: 31 °C in the afternoon against 17 °C before dawn, a 14 °C swing.
Afternoons reach 30 °C or more from May to September; the typical peak is 36 °C in June.
From April to June, rain is scarce: under 10 mm a month on average.
Forecast highs for the coming week average 25 °C, 4 °C cooler than a normal October (29 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
18 °C
5 °C
33 mm
Feb
19 °C
6 °C
32 mm
Mar
23 °C
9 °C
20 mm
Apr
26 °C
12 °C
7 mm
May
31 °C
17 °C
4 mm
Jun
36 °C
22 °C
6 mm
Jul
36 °C
24 °C
41 mm
Aug
35 °C
24 °C
42 mm
Sep
33 °C
21 °C
29 mm
Oct
29 °C
16 °C
17 mm
Nov
22 °C
9 °C
18 mm
Dec
16 °C
5 °C
34 mm
Whole year
27 °C
14 °C
280 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 32.22° N, 110.93° W, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Tucson: pollution and pollen
1/6
Good
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.51µg/m³
PM101µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Tucson
Rain observed over the last two hours by official weather radars around Tucson, followed by the radar forecast for the next hour where the weather service provides one.
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Rain radarLast two hours, then forecast where available · drag the timeline
Moon over Tucson
Waning gibbous
87 % illuminated · 18.3 days
Rise 22:20 Set 12:41
Fri30/1079%
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Moonrise and moonset in local time (America/Phoenix); phase and lit fraction from a synodic calculation.
Look up a past day in Tucson
Curious about the weather in Tucson on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Tucson weather at a glance
This page gathers everything about the weather in Tucson, Arizona: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “mainly clear”, it is 13 °C (feels like 13 °C) and the wind blows at 8 km/h.
Expected range today: 13 °C to 27 °C and a dry sky; keep an eye on thunderstorms. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Tucson forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
