Eureka · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Eureka & 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
62°
Sun, Aug 23
Coldest night
51°
Mon, Aug 31
Days with precip
0 / 14
of 14 forecast days
Nicest day
Sun, Aug 23
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
62° 53°
19% precip chance
Sat 29 – Sun 30 Aug
60° 53°
15% precip chance
Sat 5 – Sun 6 Sep
51° 44°
typical range
Sat 12 – Sun 13 Sep
52° 44°
typical range
30 days — Eureka
14 forecast + 16 climatology
Tue · Today Fog
60°53°36%⌄
Wind11 mph N
Gusts16 mph
UV index8 – High
Precip chance36%
Sunrise06:29
Sunset20:11
Wed · Tomorrow Partly cloudy
60°55°0.3 mm⌄
Wind9 mph NW
Gusts15 mph
UV index8 – High
Precip chance41%
Sunrise06:30
Sunset20:09
Thursday 20/8 Showers
60°55°0.5 mm⌄
Wind10 mph N
Gusts19 mph
UV index8 – High
Precip chance56%
Sunrise06:31
Sunset20:08
Friday 21/8 Fog
58°54°0.2 mm⌄
Wind10 mph N
Gusts12 mph
UV index7 – High
Precip chance41%
Sunrise06:32
Sunset20:06
Saturday 22/8 Partly cloudy
60°53°19%⌄
Wind10 mph N
Gusts15 mph
UV index5 – Moderate
Precip chance19%
Sunrise06:33
Sunset20:05
Sunday 23/8 Sunny
62°54°16%⌄
Wind6 mph S
Gusts16 mph
UV index5 – Moderate
Precip chance16%
Sunrise06:34
Sunset20:03
Monday 24/8 Mostly cloudy
59°53°26%⌄
Wind6 mph W
Gusts15 mph
UV index5 – Moderate
Precip chance26%
Sunrise06:35
Sunset20:02
Tuesday 25/8 Fog
59°53°25%⌄
Wind7 mph W
Gusts18 mph
UV index5 – Moderate
Precip chance25%
Sunrise06:36
Sunset20:00
Wednesday 26/8 Partly cloudy
58°53°33%⌄
Wind9 mph N
Gusts16 mph
UV index4 – Moderate
Precip chance33%
Sunrise06:37
Sunset19:59
Thursday 27/8 Partly cloudy
60°53°20%⌄
Wind10 mph N
Gusts17 mph
UV index5 – Moderate
Precip chance20%
Sunrise06:38
Sunset19:57
Friday 28/8 Sunny
58°55°31%⌄
Wind11 mph N
Gusts20 mph
UV index4 – Moderate
Precip chance31%
Sunrise06:39
Sunset19:56
Saturday 29/8 Sunny
59°54°15%⌄
Wind7 mph N
Gusts10 mph
UV index4 – Moderate
Precip chance15%
Sunrise06:40
Sunset19:54
Sunday 30/8 Sunny
60°53°15%⌄
Wind8 mph N
Gusts13 mph
UV index5 – Moderate
Precip chance15%
Sunrise06:41
Sunset19:52
Monday 31/8 Sunny
58°51°13%⌄
Wind11 mph N
Gusts21 mph
UV index4 – Moderate
Precip chance13%
Sunrise06:42
Sunset19:51
Tuesday 1/9 Light rain (climatological)
49°46°1.4 mm⌄
Day≈44–55°
Night≈40–51°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 2/9 Partly cloudy (climatological)
56°49°20%⌄
Day≈50–61°
Night≈44–55°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 3/9 Partly cloudy (climatological)
54°49°20%⌄
Day≈49–60°
Night≈43–54°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Light rain (climatological)
53°47°1.1 mm⌄
Day≈47–58°
Night≈42–53°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
51°47°20%⌄
Day≈46–56°
Night≈41–52°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
46°44°20%⌄
Day≈41–52°
Night≈38–49°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Light rain (climatological)
51°46°1.8 mm⌄
Day≈45–56°
Night≈41–52°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
50°46°20%⌄
Day≈44–55°
Night≈40–51°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
55°49°20%⌄
Day≈49–60°
Night≈43–54°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Light rain (climatological)
58°51°0.8 mm⌄
Day≈53–64°
Night≈45–56°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
51°47°20%⌄
Day≈46–57°
Night≈41–52°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
52°47°20%⌄
Day≈46–57°
Night≈42–52°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Light rain (climatological)
47°44°1.9 mm⌄
Day≈42–53°
Night≈39–50°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
47°44°20%⌄
Day≈42–53°
Night≈39–50°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
49°45°20%⌄
Day≈44–55°
Night≈40–51°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Light rain (climatological)
54°48°1.2 mm⌄
Day≈48–59°
Night≈43–53°
Precip≈0.6 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 Eureka, 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.