Olney · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Olney & 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
89°
Tue, Sep 1
Coldest night
61°
Mon, Aug 24
Days with precip
5 / 14
of 14 forecast days
Nicest day
Mon, Aug 24
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
83° 63°
15% precip chance
Sat 29 – Sun 30 Aug
77° 61°
80% precip chance
Sat 5 – Sun 6 Sep
76° 56°
typical range
Sat 12 – Sun 13 Sep
77° 56°
typical range
30 days — Olney
14 forecast + 16 climatology
Wed · Today Showers
86°68°1.7 mm⌄
Wind9 mph SW
Gusts27 mph
UV index6 – Moderate
Precip chance67%
Sunrise06:09
Sunset19:41
Thu · Tomorrow Sunny
82°67°1.0 mm⌄
Wind13 mph NE
Gusts24 mph
UV index8 – High
Precip chance57%
Sunrise06:10
Sunset19:40
Friday 21/8 Sunny
82°64°8%⌄
Wind8 mph E
Gusts15 mph
UV index8 – High
Precip chance8%
Sunrise06:11
Sunset19:39
Saturday 22/8 Sunny
83°66°10%⌄
Wind13 mph N
Gusts27 mph
UV index8 – High
Precip chance10%
Sunrise06:12
Sunset19:37
Sunday 23/8 Mostly cloudy
83°63°15%⌄
Wind9 mph N
Gusts20 mph
UV index6 – High
Precip chance15%
Sunrise06:13
Sunset19:36
Monday 24/8 Sunny
81°61°8%⌄
Wind8 mph SE
Gusts11 mph
UV index6 – High
Precip chance8%
Sunrise06:14
Sunset19:34
Tuesday 25/8 Sunny
86°65°5%⌄
Wind6 mph SE
Gusts8 mph
UV index8 – Very high
Precip chance5%
Sunrise06:15
Sunset19:33
Wednesday 26/8 Sunny
78°63°0.3 mm⌄
Wind15 mph NW
Gusts24 mph
UV index7 – High
Precip chance36%
Sunrise06:16
Sunset19:32
Thursday 27/8 Showers
73°62°1.1 mm⌄
Wind15 mph N
Gusts25 mph
UV index5 – Moderate
Precip chance62%
Sunrise06:17
Sunset19:30
Friday 28/8 Sunny
77°61°14%⌄
Wind14 mph N
Gusts27 mph
UV index6 – High
Precip chance14%
Sunrise06:18
Sunset19:29
Saturday 29/8 Showers
74°61°0.3 mm⌄
Wind13 mph N
Gusts20 mph
UV index5 – Moderate
Precip chance42%
Sunrise06:18
Sunset19:27
Sunday 30/8 Showers
77°64°4.5 mm⌄
Wind10 mph NE
Gusts18 mph
UV index5 – Moderate
Precip chance80%
Sunrise06:19
Sunset19:26
Monday 31/8 Fog
80°65°3.4 mm⌄
Wind7 mph NE
Gusts17 mph
UV index7 – High
Precip chance69%
Sunrise06:20
Sunset19:24
Tuesday 1/9 Sunny
89°69°5%⌄
Wind9 mph SE
Gusts28 mph
UV index8 – Very high
Precip chance5%
Sunrise06:21
Sunset19:23
Wednesday 2/9 Rain (climatological)
76°60°3.4 mm⌄
Day≈71–82°
Night≈54–65°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
80°62°20%⌄
Day≈74–85°
Night≈56–67°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
79°61°20%⌄
Day≈74–84°
Night≈56–67°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Light rain (climatological)
76°59°1.7 mm⌄
Day≈70–81°
Night≈54–65°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
71°56°20%⌄
Day≈65–76°
Night≈51–62°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
67°54°20%⌄
Day≈62–73°
Night≈49–60°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Light rain (climatological)
68°55°1.9 mm⌄
Day≈63–74°
Night≈49–60°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
72°57°20%⌄
Day≈66–77°
Night≈51–62°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
77°60°20%⌄
Day≈72–83°
Night≈55–66°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Light rain (climatological)
79°62°1.8 mm⌄
Day≈74–85°
Night≈56–67°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
77°60°20%⌄
Day≈72–83°
Night≈55–65°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
70°56°20%⌄
Day≈65–76°
Night≈51–61°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Light rain (climatological)
70°56°1.8 mm⌄
Day≈64–75°
Night≈50–61°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
69°55°20%⌄
Day≈64–75°
Night≈50–61°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
73°57°20%⌄
Day≈67–78°
Night≈52–63°
Precip≈1.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
78°60°3.2 mm⌄
Day≈72–83°
Night≈55–66°
Precip≈1.1 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 Olney, 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.