Weather Almanac: Poplar Grove, IL 61065

🗓️ Historical norms for December 2025

November January

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

December avg. precipitation

🌧️ 1.91"

December days below freezing

📉 ≈27.8 days

Average December lows ≈15.0°F

USDA Zone

5b

Annual extreme lows -15°F to -10°F

Last Spring Frost (36°F)

🌷 May 12

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First Fall Frost (36°F)

🍂 Sep 28

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F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Mon. December 1

🌅 7:05 a.m.

H: ≈36.9°F

L: ≈20.6°F

🌇 4:23 p.m.

Tue. December 2

🌅 7:06 a.m.

H: ≈36.4°F

L: ≈20.1°F

🌇 4:23 p.m.

Wed. December 3

🌅 7:07 a.m.

H: ≈35.9°F

L: ≈19.7°F

🌇 4:22 p.m.

Thu. December 4

🌅 7:08 a.m.

H: ≈35.4°F

L: ≈19.2°F

🌇 4:22 p.m.

Fri. December 5

🌅 7:09 a.m.

H: ≈35.0°F

L: ≈18.8°F

🌇 4:22 p.m.

Sat. December 6

🌅 7:10 a.m.

H: ≈34.5°F

L: ≈18.4°F

🌇 4:22 p.m.

Sun. December 7

🌅 7:11 a.m.

H: ≈34.1°F

L: ≈17.9°F

🌇 4:22 p.m.

Mon. December 8

🌅 7:12 a.m.

H: ≈33.7°F

L: ≈17.5°F

🌇 4:22 p.m.

Tue. December 9

🌅 7:13 a.m.

H: ≈33.3°F

L: ≈17.1°F

🌇 4:22 p.m.

Wed. December 10

🌅 7:13 a.m.

H: ≈32.9°F

L: ≈16.7°F

🌇 4:22 p.m.

Thu. December 11

🌅 7:14 a.m.

H: ≈32.5°F

L: ≈16.3°F

🌇 4:22 p.m.

Fri. December 12

🌅 7:15 a.m.

H: ≈32.1°F

L: ≈16.0°F

🌇 4:22 p.m.

Sat. December 13

🌅 7:16 a.m.

H: ≈31.8°F

L: ≈15.6°F

🌇 4:22 p.m.

Sun. December 14

🌅 7:17 a.m.

H: ≈31.4°F

L: ≈15.3°F

🌇 4:23 p.m.

Mon. December 15

🌅 7:17 a.m.

H: ≈31.1°F

L: ≈14.9°F

🌇 4:23 p.m.

Tue. December 16

🌅 7:18 a.m.

H: ≈30.8°F

L: ≈14.6°F

🌇 4:23 p.m.

Wed. December 17

🌅 7:19 a.m.

H: ≈30.5°F

L: ≈14.3°F

🌇 4:24 p.m.

Thu. December 18

🌅 7:19 a.m.

H: ≈30.2°F

L: ≈14.0°F

🌇 4:24 p.m.

Fri. December 19

🌅 7:20 a.m.

H: ≈29.9°F

L: ≈13.7°F

🌇 4:24 p.m.

Sat. December 20

🌅 7:20 a.m.

H: ≈29.7°F

L: ≈13.4°F

🌇 4:25 p.m.

Sun. December 21 Winter Solstice

🌅 7:21 a.m.

H: ≈29.4°F

L: ≈13.1°F

🌇 4:25 p.m.

Mon. December 22

🌅 7:21 a.m.

H: ≈29.2°F

L: ≈12.8°F

🌇 4:26 p.m.

Tue. December 23

🌅 7:22 a.m.

H: ≈29.0°F

L: ≈12.6°F

🌇 4:26 p.m.

Wed. December 24 Christmas Eve

🌅 7:22 a.m.

H: ≈28.7°F

L: ≈12.3°F

🌇 4:27 p.m.

Thu. December 25 Christmas Day

🌅 7:23 a.m.

H: ≈28.5°F

L: ≈12.1°F

🌇 4:28 p.m.

Fri. December 26

🌅 7:23 a.m.

H: ≈28.4°F

L: ≈11.9°F

🌇 4:28 p.m.

Sat. December 27

🌅 7:23 a.m.

H: ≈28.2°F

L: ≈11.6°F

🌇 4:29 p.m.

Sun. December 28

🌅 7:24 a.m.

H: ≈28.0°F

L: ≈11.4°F

🌇 4:30 p.m.

Mon. December 29

🌅 7:24 a.m.

H: ≈27.9°F

L: ≈11.2°F

🌇 4:30 p.m.

Tue. December 30

🌅 7:24 a.m.

H: ≈27.7°F

L: ≈11.0°F

🌇 4:31 p.m.

Wed. December 31

🌅 7:24 a.m.

H: ≈27.6°F

L: ≈10.9°F

🌇 4:32 p.m.

November January

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

Temperature climatic data from weather station: CLINTON (USC00471667)

Precipitation climatic data from weather station: CLINTON (USC00471667)

Agricultural climatic data from weather station: BELOIT (USC00470696)