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Monmouth, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center

Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

---

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
30
Warm with clouds and sun
85°
64°
31
Warm with plenty of sunshine
85°
64°
1
Mostly sunny, warm and humid
86°
63°
2
Mostly sunny and warm
85°
64°
3
Sunshine; warm, less humid
85°
63°
4
Warm with plenty of sunshine
84°
63°
5
Warm with plenty of sunshine
85°
62°
6
Mostly sunny and warm
86°
64°
7
Warm with plenty of sun
86°
64°
8
Cloudy and warm
85°
63°
9
Cloudy, thunderstorms; humid
79°
62°
10
Sunny and less humid
80°
61°
11
Warm with plenty of sunshine
83°
62°
12
A passing afternoon shower
84°
62°
13
A little afternoon rain
84°
60°
14
Variable clouds; less humid
72°
49°
15
Mostly sunny
72°
57°
16
A bit of afternoon rain
74°
56°
17
Rain
73°
54°
18
A bit of rain in the morning
72°
50°
19
Times of clouds and sun
73°
51°
20
Plenty of sunshine
78°
52°
21
Plenty of sunshine
77°
55°
22
Mostly sunny
77°
56°
23
Partly sunny with a shower
76°
47°
24
A blend of sun and clouds
72°
48°
25
Abundant sunshine
71°
54°
26
Times of clouds and sun
72°
54°
27
A t-storm around in the p.m.
78°
44°
28
Rather cloudy with t-storms
73°
44°
29
Partly sunny
68°
46°
30
Partly sunny
68°
53°
1
Sunny to partly cloudy
71°
53°
2
Warm with clouds and sunshine
76°
52°
3
Partly sunny and warm
76°
53°

Temperature Graph

°F
90° 80° 70° 60° 50° Sep
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

Allergies-January Weather in Monmouth

Monmouth's Allergies-January 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 44° and 64°. The average high for Allergies-January is 78° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how Allergies-January weather will actually feel in Monmouth. See also: October | November | December.

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