Mendon · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Mendon & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
90°
Wed, Aug 19
Coldest night
55°
Sun, Aug 23
Days with precip
6 / 14
of 14 forecast days
Nicest day
Fri, Aug 21
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
80° 55°
86% precip chance
Sat 29 – Sun 30 Aug
77° 58°
79% precip chance
Sat 5 – Sun 6 Sep
71° 51°
typical range
Sat 12 – Sun 13 Sep
72° 50°
typical range
30 days — Mendon
14 forecast + 16 climatology
Wed · Today Sunny
90°61°5%⌄
Wind9 mph W
Gusts14 mph
UV index8 – High
Precip chance5%
Sunrise05:58
Sunset19:41
Thu · Tomorrow Mostly cloudy
75°60°3.4 mm⌄
Wind8 mph N
Gusts17 mph
UV index2 – Low
Precip chance80%
Sunrise05:59
Sunset19:39
Friday 21/8 Sunny
79°56°7%⌄
Wind6 mph NE
Gusts16 mph
UV index8 – High
Precip chance7%
Sunrise06:00
Sunset19:38
Saturday 22/8 Mostly cloudy
80°59°12%⌄
Wind9 mph SE
Gusts16 mph
UV index7 – High
Precip chance12%
Sunrise06:01
Sunset19:36
Sunday 23/8 Mostly cloudy
79°55°4.8 mm⌄
Wind10 mph S
Gusts19 mph
UV index6 – High
Precip chance86%
Sunrise06:02
Sunset19:35
Monday 24/8 Showers
78°60°0.3 mm⌄
Wind12 mph W
Gusts21 mph
UV index7 – High
Precip chance36%
Sunrise06:03
Sunset19:33
Tuesday 25/8 Mostly cloudy
79°56°9%⌄
Wind10 mph SW
Gusts17 mph
UV index7 – High
Precip chance9%
Sunrise06:04
Sunset19:32
Wednesday 26/8 Showers
69°64°13.4 mm⌄
Wind6 mph SE
Gusts23 mph
UV index5 – Moderate
Precip chance92%
Sunrise06:05
Sunset19:30
Thursday 27/8 Fog
65°59°2.0 mm⌄
Wind9 mph NE
Gusts23 mph
UV index4 – Moderate
Precip chance85%
Sunrise06:06
Sunset19:28
Friday 28/8 Showers
62°59°7.1 mm⌄
Wind11 mph NE
Gusts28 mph
UV index4 – Moderate
Precip chance92%
Sunrise06:07
Sunset19:27
Saturday 29/8 Showers
62°58°1.2 mm⌄
Wind13 mph NE
Gusts33 mph
UV index4 – Moderate
Precip chance79%
Sunrise06:08
Sunset19:25
Sunday 30/8 Mostly cloudy
77°58°0.4 mm⌄
Wind12 mph NE
Gusts33 mph
UV index7 – High
Precip chance41%
Sunrise06:09
Sunset19:23
Monday 31/8 Sunny
87°66°11%⌄
Wind7 mph SW
Gusts20 mph
UV index8 – Very high
Precip chance11%
Sunrise06:10
Sunset19:22
Tuesday 1/9 Sunny
88°69°15%⌄
Wind8 mph SW
Gusts22 mph
UV index8 – Very high
Precip chance15%
Sunrise06:11
Sunset19:20
Wednesday 2/9 Rain (climatological)
68°53°7.1 mm⌄
Day≈63–73°
Night≈47–58°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
75°56°20%⌄
Day≈69–80°
Night≈51–62°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
74°56°20%⌄
Day≈69–80°
Night≈51–62°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Rain (climatological)
71°54°9.0 mm⌄
Day≈66–76°
Night≈49–60°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
65°51°20%⌄
Day≈60–71°
Night≈46–56°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
65°51°20%⌄
Day≈60–71°
Night≈45–56°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Rain (climatological)
65°51°7.6 mm⌄
Day≈60–70°
Night≈45–56°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
67°52°20%⌄
Day≈62–73°
Night≈47–58°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
70°53°20%⌄
Day≈64–75°
Night≈48–59°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
70°54°7.8 mm⌄
Day≈65–76°
Night≈49–59°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
72°55°20%⌄
Day≈67–78°
Night≈50–60°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
64°50°20%⌄
Day≈59–70°
Night≈45–56°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
65°51°8.3 mm⌄
Day≈60–70°
Night≈45–56°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
66°51°20%⌄
Day≈60–71°
Night≈46–57°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
71°55°20%⌄
Day≈66–77°
Night≈49–60°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
70°53°7.8 mm⌄
Day≈64–75°
Night≈48–59°
Precip≈2.8 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for Mendon, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.