Casselman · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Casselman & 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
79°
Wed, Sep 2
Coldest night
33°
Wed, Sep 9
Days with precip
4 / 14
of 14 forecast days
Nicest day
Sat, Sep 5
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
70° 55°
13% precip chance
Sat 12 – Sun 13 Sep
63° 48°
16% precip chance
Sat 19 – Sun 20 Sep
50° 34°
typical range
Sat 26 – Sun 27 Sep
50° 35°
typical range
30 days — Casselman
14 forecast + 16 climatology
Mon · Today Sunny
67°49°17%⌄
Wind13 mph NW
Gusts34 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:41
Sunset20:26
Tue · Tomorrow Sunny
74°53°7%⌄
Wind13 mph SE
Gusts20 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:42
Sunset20:24
Wednesday 2/9 Mostly cloudy
79°60°10%⌄
Wind10 mph E
Gusts29 mph
UV index4 – Moderate
Precip chance10%
Sunrise06:44
Sunset20:21
Thursday 3/9 Showers
73°52°11.2 mm⌄
Wind14 mph S
Gusts31 mph
UV index3 – Moderate
Precip chance86%
Sunrise06:46
Sunset20:19
Friday 4/9 Showers
65°45°4.2 mm⌄
Wind11 mph SE
Gusts22 mph
UV index5 – Moderate
Precip chance82%
Sunrise06:48
Sunset20:17
Saturday 5/9 Sunny
70°56°6%⌄
Wind6 mph SW
Gusts11 mph
UV index6 – High
Precip chance6%
Sunrise06:49
Sunset20:14
Sunday 6/9 Mostly cloudy
67°55°13%⌄
Wind16 mph NW
Gusts27 mph
UV index4 – Moderate
Precip chance13%
Sunrise06:51
Sunset20:12
Monday 7/9 Mostly cloudy
65°55°22%⌄
Wind7 mph SW
Gusts19 mph
UV index4 – Moderate
Precip chance22%
Sunrise06:53
Sunset20:09
Tuesday 8/9 Showers
63°39°3.6 mm⌄
Wind13 mph N
Gusts25 mph
UV index3 – Moderate
Precip chance79%
Sunrise06:55
Sunset20:07
Wednesday 9/9 Showers
39°33°18.4 mm⌄
Wind10 mph NE
Gusts17 mph
UV index1 – Low
Precip chance92%
Sunrise06:56
Sunset20:04
Thursday 10/9 Sunny
52°34°0.5 mm⌄
Wind9 mph SW
Gusts13 mph
UV index4 – Moderate
Precip chance41%
Sunrise06:58
Sunset20:02
Friday 11/9 Sunny
59°41°9%⌄
Wind16 mph SE
Gusts30 mph
UV index4 – Moderate
Precip chance9%
Sunrise07:00
Sunset20:00
Saturday 12/9 Mostly cloudy
63°48°16%⌄
Wind7 mph NW
Gusts21 mph
UV index4 – Moderate
Precip chance16%
Sunrise07:02
Sunset19:57
Sunday 13/9 Mostly cloudy
62°51°10%⌄
Wind10 mph NE
Gusts28 mph
UV index4 – Moderate
Precip chance10%
Sunrise07:03
Sunset19:55
Monday 14/9 Rain (climatological)
53°38°10.9 mm⌄
Day≈48–59°
Night≈32–43°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
56°39°20%⌄
Day≈50–61°
Night≈34–44°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
59°41°20%⌄
Day≈53–64°
Night≈35–46°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
53°38°10.1 mm⌄
Day≈48–59°
Night≈32–43°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
52°37°20%⌄
Day≈47–57°
Night≈31–42°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
48°34°20%⌄
Day≈42–53°
Night≈29–40°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
50°36°4.1 mm⌄
Day≈44–55°
Night≈30–41°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
51°37°20%⌄
Day≈46–57°
Night≈31–42°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
53°38°20%⌄
Day≈48–59°
Night≈32–43°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
57°40°7.9 mm⌄
Day≈51–62°
Night≈34–45°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
51°37°20%⌄
Day≈46–57°
Night≈31–42°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
52°37°20%⌄
Day≈47–57°
Night≈31–42°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
50°36°6.6 mm⌄
Day≈45–56°
Night≈30–41°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
49°35°20%⌄
Day≈44–55°
Night≈30–41°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
53°38°20%⌄
Day≈48–59°
Night≈32–43°
Precip≈3.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
57°40°5.7 mm⌄
Day≈52–63°
Night≈35–45°
Precip≈3.2 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 Casselman, 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.